SHOP MANUAL

MASSEY-FERGUSON
MODELS 1010 AND 1020

The tractor serial number is located on a plate on the

steering column below the dash (1—Fig. 1). The tractor
model is located on plate at (2). The engine serial num-
ber is located on the right side of engine block (3—Fig,
2) and the chassis serial number is stamped into the
rear axle center housing (4—Fig. 3).

Fig, I—The tractor serial number plate Is located on the Fig. 2—Englne serial number Is stamped on right side of
steering column below dash. engine.

Fig. 3—The chassis serial number Is stamped on rear axle

center housing.
 INDEX (By Starting Paragraph)
Models Models
1010 and 1020 1010 and 1020
BRAKES FINALDRIVE AND AXLES 142
Adjust 144
R & R and Overhaul 145 FRONT AXLE SYSTEM (FOUR-WHEEL
DRIVE)
Axle Housing, King Pin, Axle Shafts and
CLUTCH Universal Joints 13
Adjustment 55 Differential 15
Clutch Shaft and Release Bearing 58 Front Axle Assembly H
R & R and Overhaul 56 Front Axle Assembly and Steering Linkage 10
Front Final Drive 12
COOLING SYSTEM
Radiator 48 FRONT AXLE SYSTEM (TWO-WHEEL
Thermostat 49 DRIVE) 1
Water Pump 50
HYDRAULIC LIFT SYSTEM
Control Valve 170
DIESEL FUEL SYSTEM
Fluid and Filters 163
Fuel Filters and Lines 37 Hydraulic Pump 164
Glow Plugs 47 Lift Cover 168
Governor and Injection Pump Camshaft . 41 Relief Valve
Injector Nozzles 43 1010 Hydro and All 1020 Models 167
Injection Pump 39 1010 Standard Models 166

ELECTRICAL SYSTEM POWER TAKE-OFF i

Alternator and Regulator 51 Front Pto 161^
Circuit Description 54 MidPto 158
Safety Switches 53 Rear Pto
Starter 52 1010 Hydro Models 147
1010 Standard Models 146
1020 Hydro Models 153
ENGINE AND COMPONENTS 1020 Standard Models 152
Cam Followers 23
Camshaft 27 REAR AXLE CENTER HOUSING AND
Connecting Rod and Bearings 31 DIFFERENTIAL
Crankshaft and Main Bearings 32 Axle Center Housing
Crankshaft Rear Oil Seal 33 1010 Hydro Models 122
Cylinder Head 18 1010 Standard Models 120
Flywheel 34 1020 Hydro Models 126
Front End/Engine Split 16 1020 Standard Models 124
Oil Pan 35 Differential and Bevel Gears
1010 Hydro Models 132
Oil Pump 36
1010 Standard Models 128
Piston Pin 30 1020 Hydro Models 139
Piston, Rings and Cylinder 29 1020 Standard Models 136
R & R Engine 17
Rocker Arms 22 STEERING SYSTEM
Rod and Piston Units 28 Power Assist 8
Timing Gear Housing 25 Steering Gear 6
Timing Gears 26
Valve Clearance 19 TRANSMISSION
Valve Springs 21 1010 HYDRO
Valve Timing 24 Front-Wheel-Drive Idler 84
Valves, Guides and Seats 20 Hydrostatic Unit 76
 Models Models
1010 and 1020 1010 and 1020
TRANSMISSION TRANSMISSION
1010 HYDRO (Cont.) 1020 HYDRO (Cont.)
Lubrication 69 Hydrostatic Unit 109
Overhaul 78 Lubrication 102
Range Transmission 80 Overhaul , 111
Spacer Housing Assembly 79 Range Transmission 113
Tests and Adjustments 71 Spacer 112
Troubleshooting 70
Tests and Adjustments 104
Troubleshooting 103
TRANSMISSION
1010 STANDARD
Inspection 59 TRANSMISSION
Lubrication 60 1020 STANDARD
Overhaul 62 Creeper (Mode) Transmission 97
Remove and Reinstall 61 Front-Wheel Drive 100
Inspection. 86
TRANSMISSION Lubrication 87
1020 HYDRO Main and Range Transmission 89
Front-Drive Output Shaft 118 Shifter Cover 88

DUAL DIMENSIONS
This service manual provides specifications in both U.S. Customary and Metric (SI) systems of
measurement. The first specification is given in the measuring system perceived by us to be the
preferred system when servicing a particular component, while the second specification (given in
parenthesis) is the converted measurement. For instance, a specification of 0.011 inch (0.28 mm)
would indicate that we feel the preferred measurement in this instance is the U.S. Customary system
of measurement and the Metric equivalent of 0.011 inch is 0.28 mm.

CONDENSED SERVICE DATA

Models
1010 standard 1010 Hydro 1020 Standard 1020 Hydro
GENERAL
Engine Make Hinomoto -
Model CS86 • -CS112-
Number of Cylinders.
Bore — 70 mm — — 75 mm —
(2.756 in.) (2.953 in.)
Stroke — 75 mm — — 85 mm —
(2.953 in.) (3.347 in.)
Displacement 865 cc — 1126 cc —
(52.8 cu. in.) (68.7 cu. in.)
 CONDENSED SERVICE DATA (Cont.)
1010 Standard
Models
1010 Hydro 1020 Standard 1020 Hydro i
GENERAL (Cont.)
Compression Ratio " 23:1 —
Firing Order ~" 1-3-2 —
Valve Clearance (Cold) -
Inlet ' —0.30 mm ——
(0.012 in.)
Exhaust —0.35 mm
(0.014 in.)
Valve Face and Seat Angle -
Inlet and Exhaust ^ — 45°—
Injection Timing - BTDC
Static 25° -—
Fuel Pump
Make — Diesel Kiki —
Engine Low Idle, rpm ' 850-900 -
Engine High Idle, rpm 2650-2700 2650-2700 2500-2550 2650-2700
Engine Rated Speed, rpm 2500 2500 2350 2500
Battery Terminal Grounded Negative
Transmission, Speeds 3F-1R x 2 Hydrostatic 3F-1R x 2 x 2 Hydrostatic
Variable x 2 Variable x 3
SIZES
Crankshaft Main Journal Diameter • 59.960-59.985 mm
(2.3606-2.3614 in.)
Crankshaft Crankpin Diameter . . . 47.960-46.980 mm
(1.8882-1.8890 in.)
Camshaft Journal Diameter -
Front 45.910-45.925 mm
(1.8075-1.8081 in.)
Piston Pin Diameter 23.990-23.996 mm 24.989-24.999 mm
(0.9445-0.9447 in.) (0.9839-0.9841 in.)
Valve Stem Diameter -
Inlet 7.945-7.960 mm 7.945-7.960 mm
(0.3128-0.3134 in.) (0.3128-0.3134 in.)
Exhaust 7.920-9.935 mm 7.910-9.925 mm
(0.3118-0.3124 in.) (0.3114-0.3120 in.)
CLEARANCES
Main Bearing Diametral Clearance —^0.03-0,095 mm
(0.0012-0.0037 in.)
Rod Bearing Diametral Clearance . — 0.03-0.095 mm
(0.0012-0.0037 in.)
Camshaft Bearing
Diametral Clearance 0.021-0.092 mm
(0.0008-0.0036 in.)
Crankshaft End Play — 0.1-0.3 mm
(0.0039-0.0118 in.)
Piston Skirt to
Cylinder Clearance 0.07-0.109 mm
(0.0027-0.0043 in.)
CAPACITIES
Coohng System 3.0 L 4.0 L
(3.17 qt.) (4.4 qt.)

8
 CONDENSED SERVICE DATA (Cont.)
Models
1010 Standard 1010 Hydro 1020 Standard 1020 Hydro
CAPACITIES (Cont.)
Crankcase With Filter 2.5 L* 3.0 L 3.7 L
(2.64 qt.*) (3.2 qt.) (4.0 qt.)
Transmission 17 L 23 L 26 L
(4.5 gal.) (6.08 gal.) (6.9 gal.)
Front Drive Axle Hubs
(Each Side) — 0.4 L
(0.42 qt.)
Front Drive Axle Housing 1,5 L
(1.6 qt.)
* Later models with two drain plugs - 3.0 L (3.2 qt.).

9
Paragraphs 1-3 MASSEY-FERGUSON

FRONT AXLE SYSTEM

(TWO-WHEEL DRIVE)
FRONT AXLE ASSEMBLY AND of 29.4 N.m (22 ft.-lbs.), loosen nut, then tighten nut
to 9.8-14.7 N.m (7.2-11.0 ft.-lbs.) torque and install
STEERING LINKAGE new cotter pin. Be sure to install cap (8), using new
gasket or sealer, and tighten retaining screws se-
Two-Wheel-Drive Models curely. Bolts attaching front wheel to hub should be
tightened to 88 N.m (65 ft.-lbs.) torque.
1. WHEELS AND BEARINGS. Front wheel bear-
ings should be removed, cleaned, inspected and re-
newed or repacked every 400 hours of operation. To 2. TIE ROD AND TOE-IN. A single tie rod t on-
remove front wheel hub and bearings, raise and sup- nects the left and right steering arms (22 and 23—
port the front axle extension, then unbolt and remove Fig. 4 or Fig. 5) which are attached to the steering
the tire and wheel assembly. Remove cap (8—Fig. 4 spindles (16). The automotive type tie rod ends are
or Fig. 5), cotter pin, castellated nut (10), washer and not adjustable for wear and should be renewed if
cone of outer bearing (12). Slide the hub assembly worn. Rod end threaded into right end of tie rod is
from spindle axle shaft. Remove seal (15) and cone for used to adjust the distance between ends to establish
inner bearing (14). Drive cups for bearings (12 and front wheel toe-in. Recommended toe-in is 3-10 mm
14) from hub if renewal is required. Inner seal (9) can (V8-% in.) and should be measured between the wheel
be removed from spindle (16) if renewal is required. rims on centerline of axle, parallel to ground. Roi ate
wheels and re-measure to be sure that wheels are not
Pack wheel bearings liberally with a suitable wheel bent, giving incorrect reading. Tighten rod end jam
bearing grease. Reassemble by reversing disassem- nut after toe-in is correctly set.
bly procedure. Tighten castellated nut (10) to a torque

3. SPINDLES, AXLE EXTENSIONS AND

BUSHINGS. To remove spindle (16—Fig. 4 or Fig. |
5), first remove the wheel and hub. Disconnect rod
end from steering arm (22 or 23), remove clamp screw
from steering arm, then remove steering arm. Re-
move key (21) and seal (if used) from top of spindle,
then lower spindle out of axle (5). Clean and inspect

Fig. 4—Exploded view of axle and wheel hub of two-

wheel-drive 1010 models.
1. Screw 13. Wheel huh
2. Axle pivot pin 14. Inner hearing
3. Shims 15. Seal
4. Bushings 16. Spindle
5. Axle main member 17. Seal
6. Grease fitting 18. Thrust bearing
8. Bearing cap 19. Bushing
9. Inner seal 20. Bushing Flg^ 5—Exploded view of front axie used on two-wheel-
10. Castellated nut 21. Key
11. Washer 22. Left steering arm drlve 1020 models. Refer to Fig. 4 for legend except shield
12. Outer hearing 23. Right steering arm

10
 MODELS 1010 & 1020 Paragraphs 4-5
parts for wear or other damage and renew as neces- Reverse removal procedure when assembling. Axle
sary. end play should be 0-0.3 mm (0-0.012 in.) for 1010
Spindle bushings (19 and 20) should not require models; 0-0.4 mm (0-0.016 in.) for 1020 models. Push
reaming after pressing into position in axle (5). Be the axle toward rear on pivot pin, then measure axle
sure that hole in spindle for grease fitting is clean and end play with a feeler gauge. Shims (3) are available
open before assembling. in various thicknesses for adjusting end play. Make
When reassembling, install thrust bearing (18) so sure that pin retaining screw (1) at front is tight and
that numbered side of bearing is facing upward. In- that pin retaining nut at rear is snug, but not over-
stall seal (17) and insert spindle through axle. Install tightened. Install cotter pin through pin and castel-
upper seal (if so equipped) and key (21), then locate lated nut. Refer to paragraphs 2 and 3 for additional
steering arm on top of spindle. Tighten steering arm torque values and assembly notes.
retaining clamp screw to 88 N.m (65 ft.-lbs.) torque.
Bolts attaching front wheel to hub should be tight-
ened to 88 N.m (65 ft.-lbs.) torque. Balance of reas- 5. FRONT SUPPORT, The front axle and radiator
sembly is the reverse of disassembly. Refer to must be removed before unbolting the front axle
paragraph 2 for toe-in adjustment. support from engine. The front axle, the front support
and the remainder of the tractor must each be sup-
4. AXLE CENTER MEMBER, PIVOT PIN AND ported separately while removing, while separated
BUSHINGS. To remove front axle assembly, first and while assembling. Be sure that sufficient equip-
remove any front mounted equipment, guards, ment is available before beginning.
weights and weight frame. Raise front of tractor in
such a way that it will not interfere with the removal Remove any front mounted equipment, guards,
of the axle. Remove the front wheels. Disconnect weights and weight frame. Unplug lights, then re-
steering hoses if equipped with power steering and move hood and grille assembly. Remove the battery,
cover openings to prevent the entry of dirt. On all drain cooling system, disconnect radiator hoses and
models, disconnect drag link from right steering arm. remove radiator assembly. Refer to paragraph 4 and
Support the axle with a suitable jack to prevent remove axle assembly. Remove the front pto, if so
tipping while permitting the axle to be lowered and equipped. On all models, attach a hoist or other
supporting device to front support, then remove the
|moved safely. Remove axle pivot pin (2—Fig. 4 or Fig. five retaining screws from each side and separate the
r5), carefully lower the axle assembly and roll axle front support from engine.
from under tractor.
Check axle pivot bushings (4) and renew if neces- Reattach front support to engine by reversing the
sary. Bushings are pressed into bore of axle and removal procedure. Apply "Loctite 271" or equivalent
should be installed flush with bore. Split in bushing to the ten screws attaching front support and frame
should be 45° from top of axle bore. It should not be to sides of engine. Complete assembly by reversing
necessary to ream bushings after installation. the removal procedure.
Paragraphs 6-8 MASSEY-FERGUSON

STEERING SYSTEM
STEERING GEAR shaft, then unbolt and remove the steering wheel
shaft support (24—Fig. 7). Remove clamp rings- (7)
and slide boot (8) up to uncover universal joint. Re-
All Models move lower retaining ring (4) and use a punch to d rive
lower pin (6) from universal joint, then separate
6. A cross section drawing of the manual steering universal joint (5) from pinion shaft (12). Notice that
gear assembly is shown in Fig 6. Note that the steer- pins (6) are stepped and must be removed toward
ing gears are contained within a cavity in the top of larger end. Remove screws attaching cover (9) to
the clutch housing and that the steering shaft ex- transmission housing, then remove cover, leaving
tends through the clutch housing. The steering ratio pinion shaft (12) in transmission housing. Pinion
is 10:1 for all 1010 models and 13:1 for all 1020 shaft (12) and quadrant gear (15) can be removed
models. Some differences will be noticed, including together after removing retaining nut (14). Steering
the number of teeth on gears (12 and 15—Fig, 7) and arm shaft (17) can be removed after splitting tractor
shaft (17) may be straight on some models. between engine and clutch housing, then removing
the engine clutch shaft.
7. R&R AND OVERHAUL. To service steering When reassembling, front wheels must be straight
gear, it is necessary to remove the steering wheel, ahead and steering pinion (12) must be in center of
instrument panel cover and fuel tank. Disconnect teeth on quadrant gear (15). Tighten nut (14) to 59-78
brake and clutch rods from pedals and pedal cross N.m (43-58 ft.-lbs.) torque. If tab lockwasher is in-
stalled under nut (14), flat side of nut should be
toward top and tab of washer should be bent up to
lock retaining nut. Some models may be equij^ped
with self-locking nut or two special nuts. Fill gear
cavity half full with multi-purpose lithium ])ase
grease. Nut for clamp bolt (22) retaining steering arm
(21) to lower end of shaft should be tightened to 78-90
N.m (57-68 ft.-lbs.) torque. The steering arm (21) o
some models is retained with a nut threaded to shaft
similar to the type (14) at upper end. The larger
retaining nut should be tightened to 98-117 N.m
(72-87 ft.-lbs.) torque.

POWER ASSIST

Models So Equipped
8. Power assisted steering is available and may be
installed on any model. Refer to Fig. 8 for view of flow
divider valve (1), steering valve and steering assist
cyhnder assembly (3), connecting hydraulic lines and
attaching brackets. Most service will consist of re-
moval, disassembly, cleaning and reassembly using
new seals. Refer to Fig. 9 for exploded view of cylinder
and valve unit.
To remove the power steering unit, raise front of
tractor so that weight is removed from the lront
wheels. Disconnect hydraulic lines (2 and 8—Fig. 8),
then tum steering wheel from lock to lock to dis-
charge oil from steering cylinder. Disconnect steering
unit from anchor bracket (4), steering arm (5) and
drag link (7).
To renew steering cylinder seals, remove ball joint |
end from cylinder rod (41—Fig. 9). Flatten the locking
Fig. &^Cross section drawing of steering gear typicai of groove on the cylinder, then unscrew cap and bearing
ali modeis. Refer to Fig. 7 for exploded view. assembly (43) from cylinder (36). Withdraw cylinder

12
MODELS 1010 & 1020 Paragraph 8 (Cont.)

Fig. 7^Expioded view of dutch housing and

typicai steering gear.
1. Steering wheel 13. Bearing
2. Bushing 14. Retaining nut
3. Steering shaft 15. Quadrant gear
4. Retaining rings 16. Bearing
5. Universal joint 17. Steering arm shaft
6. Pins 18. Bearings
7. Clamp rings 19. Snap ring
8. Boot 20. Key
9. Steering gear cover 21. Steering arm
10. Oil seal 22. Clamp bolt
11. Snap ring 24. Steering wheel
12. Steering pinion shaft support

22'

Fig. 8—Power assist (booster) steering is

instaiied on some models. Refer to Fig. 9
for expioded view of cyiinder and vaive
unit.
1. Flow divider I
2. Pressure lines 5. Steering arm (4WD)
3. Cylinder and 6. Steering arm (2WD)
valve unit 7. Drag link
4. Bracket 8. Return lines

13
Paragraph 8 (Cont.) MASSEY-FERGUSON

14
IS

26

Fig. 9-~Explod0d view of steering BBSist cylinder and valve unit,

11. AcUuster 20. Dust cover 29. Spool rod 38. Seal ring
12. "O" ring 21. Plug 30. "0" ring 39. "O" ring
13. Spring 22. Washer 31. Seal ring 40. Piston i
14. Valve plunger 23. "O" ring 32. Plug 41. Rod I
15. Seat 24. Valve housing 33. Dust cover 42. "O" ring ^
16. "O" ring 25. Pin 34. Nut 43. Cap & bearing
17. Orifice 26. Valve spool 35. Yoke 44. Oil seal
18. "O" ring 27. Spring seat 36. Cylinder 45. Dust seal
19. "O" ring 28. Spring 37. Nut 46. Snap ring

rod, cap and piston (40) from cylinder. Slide the cap new seals note that lip of oil seal (44) faces inward
off the rod. Remove retaining ring (46), then drive and lip of dust seal (45) faces outward.
dust seal (45) and oil seal (44) from the cap. Remove After installing power steering unit on the tractor,
seal ring (38) and "O" ring (39) from piston. Unbolt start the engine and tum steering wheel from lock to
and remove cylinder (36) from valve housing (24) if lock several times to bleed air from the cylinder and
renewal of "O" ring (18) is necessary. When installing lines.

14
 MODELS 1010 & 1020 Paragraphs 9-12

FRONT AXLE SYSTEM

(FOUR-WHEEL DRIVE)
9. A mechanical front-wheel drive is available on appropriate paragraphs for disassembly and service
these models. There are some differences between the to individual units.
front-wheel-drive systems used on these models that To remove the complete front drive axle assembly,
will be referred to in the servicing instructions which first support tractor behind axle and remove both
follow. front wheels. Disconnect drag link from steering arm
and, if unit is to be disassembled, drain oil from final
FRONT AXLE ASSEMBLY AND drive and differential housings. Loosen clamp from
STEERING LINKAGE drive shaft cover and slide front half of cover toward
rear. Remove the three screws attaching rear of drive
shaft cover to rear housing, lift snap rings from
Four-Wheel-Drive Models grooves in drive shaft and relocate snap rings toward
center of drive shaft. Move drive shaft couplings
10. TIE ROD AND TOE-IN. A single tie rod con- toward center of drive shaft, then remove drive shaft
nects the left and right king pin housings. The auto- and cover. Support axle level with floor to prevent
motive type tie rod ends are not adjustable for wear tipping, then remove the two screws (S—Fig. 10)
and should be renewed if worn. Rod end threaded into attaching rear pivot bracket and the four screws
right end of tie rod is used to adjust the distance attaching the front pivot bracket. Carefully lower the
between ends to establish front wheel alignment. front axle assembly and pivot brackets away from
Recommended alignment is when wheels toe-in less front support frame.
than 5 mm (^/IQ in.) or toe-out no more than 5 mm
(3/l6 in.). To check alignment, measure between the When installing, be sure that ring gear is on correct
wheel rims on centerline of axle, parallel to ground. side of tractor (pinion) and that differential drain
Rotate wheels and re-measure to be sure that wheels plug is toward bottom. Be sure to install new "0"
are not bent, giving incorrect reading. Tighten tie rod rings around differential pivots against pivot brack-
I end jam nut after wheel alignment is correctly set. ets. Shims are available to limit clearance of differ-
ential between pivot brackets to 0.2 mm (0.008 in.).
Tighten pivot bracket retaining screws to 88 N.m (65
FRONT AXLE ASSEMBLY ft.-lbs.) torque. Remainder of installation is reverse
of removal procedure. Tighten wheel retaining nuts
Four-Wheel-Drive Models to 87 N.m (64 ft.-lbs.) torque. ,

11. REMOVE AND REINSTALL. The front axle FRONT FINAL DRIVE
assembly includes the differential and axle pivot,
drive shaft, axle housings, and final drive. Refer to
Four-Wheel-Drive Models
12. R&R AND OVERHAUL. Each front final
drive can be disassembled without disturbing other
parts of the drive system. Support weight of tractor
front end and remove front wheel. Remove drain plug
(13—Fig. 11), then unbolt cover (3) from housing (15).
Carefully bump cover from studs and bearing (6) from
inner bore, then withdraw cover, stub axle, and re-
duction gear from housing. Remove cotter pin then
remove nut (8) and washer (7) from inner end of stub
axle (1). Bump inner end of axle with a soft hammer
while supporting cover (3) to remove bearing (6), gear
(5), bearing (4) and cover (3) from axle (1). Oil seal (2)
and bearings (4 and 9) can be removed from cover if
Fig. la^The differential must be lowered 10 mm (3/8 In.) renewal is required. Drive gear (11) can be removed
by loosening screws (S) to have enough clearance to from 1010 models after removing snap ring (10).
remove axle housing from modeis with standard trans- Outer collar (42) must be removed before removing
missions. Screws may come out and differentiai may fall
if standard screws are ioosened more than 15 mm (9/16 pinion and shaft (41) from 1020 models.
in.). Front pivot bracicet is retained in front support by four Be sure that inner part of seal (2) is removed from
screws entering from the side (F). stub axle (1) and outer part of seal (2) is removed from
Paragraph 12 (Cont.) MASSEY-FERGUSON

29s

29

Fig ii—jExpioded view of front-wheel-drlve housing and related parts used on 1010 models, Inset shows different drive
shaft and universal joint parts (41-45) used on 1020 models.
1 Axle 34. Differential housing
2 Oil seal 13. Drain plug 23. Bushing 35. Ring sleeve
3 Cover 14. Fill plug 24. Bearing 36. Lower arm pin
3G Gasket 15. King pin housing 25. Seal 37. Lower support arm
4 Bearing 16. "O" ring 26. Adjusting screw 38. Dust seal
5 Gear 17. Bearing race 27. Nut 39. Bushing
6. Bearing 18. Bearing balls 28. Steering arm 40. Oil seal
7. Washer (89 each race) 29. Support 41. Pinion gear
Nut 19. Bearing race 29S. Stop screw and shaft
Bearing 20. Seal 30. Bearing 42. Bearing collar
Snap ring 21. Universal joint 31. Drive shaft 43. Constant velocit} joint
Gear & pinion shaft 32. "O" ring 44. Spacer
Bearing 22. Housing 33. Thrust washer 45. Drive shaft

cover (3). Pack grease between lip of oil seal before install cotter pin. DO NOT loosen nut to install cotter
installing and coat axle shaft seal surface with oil pin. Make sure all gasket surfaces are clean andj
before inserting into seal. Install gear (5) so that install gasket (3G). Tighten fasteners attaching cover
protruding boss is toward inside. Install washer (7) (3) to 27 N.m (20 ft.-lbs.) torque. Tighten wheel re-
and tighten nut (8) to 78 N.m (58 ft.-lbs.) torque, then taining nuts to 87 N.m (64 ft.-lbs.) torque. Each gear

16
 MODELS 1010 & 1020 Paragraphs 13-14
housing should contain approximately 0.4 L (0.42 qt.) necessary to remove king pin housing (15) so that
of "Massey-Ferguson Permatran III," SAE 80 GL-3, shaft (31 or 45) can be installed in bearing (30) and
SAE 80 GL-4 oil or equivalent. Fill through opening universal joint (21 or 43) can be installed on end of
for plug (14). shaft (31 or 45).
To reinstall, be sure that opposite axle is raised to
AXLE HOUSING, KING PIN, permit more room on side to be installed. Install new
AXLE SHAFTS AND "O" ring (32) on differential housing, be sure that
thrust washer (33) is positioned on axle shaft (31 or
UNIVERSAL JOINTS 45), then carefully slide axle assembly onto differen-
tial housing. Coat threads of screws and stud nuts
Four-Wheel-Drive Models attaching axle housing to differential housing with
"Loctite 271" or equivalent, then tighten to 55 N-m
13. REMOVE AND REINSTALL. The differen- (41ft.-lbs.) torque. Tighten screws attaching differen-
tial housing can remain installed on tractor while tial pivot brackets (S—Fig. 10) to 88 N.m (65 ft.-lbs.)
removing and installing axle housing. To remove one torque. Tighten wheel retaining nuts to 87 N.m (64
axle housing and associated parts from one side, raise ft.-lbs.) torque. Each outer final drive gear housing
tractor and remove wheel. Remove drain plug (13— should contain approximately 0,4 L (0.42 qt.) of
Fig. 11) and allow oil to drain. Support the axle that "Massey-Ferguson Permatran III," SAE 80 GL-3,
will remain installed so that the axle to be removed SAE 80 GL-4 oil or equivalent. Fill through opening
is lower. On models with standard transmission (not for plug (14). The axle housings and differential hous-
Hydro models), it is also necessary to lower the dif- ing contain approximately 1.5 L (1.6 qt.) of the same
ferential housing for additional clearance. Refer to fiuid and are filled through opening for plug (F).
paragraph 11 to remove Front Final Drive if so de-
sired. The king pin housing (15) can be removed if 14. OVERHAUL. Service to king pins, bearings
desired, leaving housing (22) attached to differential and universal joints can be accomplished without
housing (34). separating axle housing from differential housing;
To remove, detach tie rod, drag link and any other however, removal is required for service to bearing
interfering connections. On models with standard (30—Fig. 11) and axle shaft (31 or 45).
transmission (not Hydro models), it is necessary to Refer to paragraph 12 and remove the front final
loosen drive shaft cover and lower the differential drive (1 through 9). On 1010 models, gear (11) can
housing 10 mm (^/g in.). Remove the three screws also be removed after removing snap ring (10). On all
attaching drive shaft cover to rear housing, then models, detach tie rod and drag link, then loosen or
loosen (but do not remove) the two screws (S—Fig. remove locknut (27) and make sure that adjusting
10) attaching axle rear carrier (pivot bracket) to the screw (26) is free to turn. Unbolt upper support (29)
front support, which will allow differential to lower from king pin housing (15) and carefully remove
the correct amount. If screws are loosened too much, upper support from dowels. Lower support (37)
screws will come out and differential will fall. If not should hold king pin housing in place. If necessary,
loosened, there will not be enough room to remove clean and lubricate threads of adjusting screw (26) to
axle housing. On all models, support axle housing facilitate adjustment while reassembling. Support
safely, then unbolt housing from differential housing king pin housing (15) and remove the three screws
(34—Fig. 11). Carefully move the axle (31) and hous- attaching lower support (37) to axle housing (22).
ing (22) away from differential and from under trac- Lower king pin housing and related parts away from
tor. axle housing and make sure that all 89 bearing balls
(18) are located. The 5.5563 mm (0.219 in.) diameter
NOTE: The screws and stud nuts attaching axle bearing balls can cause extensive damage if caught
housing to one side of differentiai housing aiso between gear teeth or left out. Seal (20), bearing races
attach the differentiai housing cover. Be careful to (17 and 19), balls (18), "O" ring (16) and ring sleeve
separate between axie housing and cover. The (35) should be renewed when disassembled if at all
cover is located between ieft axie housing and left questionable.
side of differential housing on 1010 Hydro modeis.
Cover is iocated between right axie housing and Clean all parts thoroughly and make sure that all
right side of differentiai housing of other 1010 and 89 bearing balls (18) are accounted for. Carefully
1020 models. Cover should stay with differential press upper race (19) and seal (20) in axle housing
housing and does not need to be removed; however, and pack lip of seal with grease. Coat inner race (17)
reinstail using a new seaiing "O" ring, if cover is with grease and carefully stick all 89 loose bearing
removed. balls to the race with the grease. Position inner race
with bearing balls into the installed upper outer race
Carefully slide axle shaft (31—Fig. 11) out together and make sure that it is held firmly in place. The seal
with housing (22) unless king pin is to be disassem- wear ring (35) should be bonded to the lower (king
bled. If axle (31) pulls out of bearing (30), it may be pin) housing (15) with "Loctite 277" or equivalent. All

17
Paragraph 15 MASSEY-FERGUSON

old adhesive must be removed and surface should be paragraph 13 for attaching axle housing to diffen;n-
free of scratches, dirt and oil. Apply adhesive evenly tial housing and to paragraph 12 for installing final
only when ready to assemble king pin housing to axle reduction gears and cover.
housing, because it begins to cure in five minutes.
Adhesive will stabilize after about 24 hours. DIFFERENTIAL
Lubricate adjusting screw (26) and lip of seal (25) Four-Wheel-Drive Models
with grease. Make sure that adjusting screw is free
to turn easily Install bearing (30) with sealed side 15. R&R AND OVERHAUL. Refer to paragraph
toward outside (universal joint side). Position "O" 11 and remove both axles and differential as an
ring (16) in groove of housing (15) and bearing (12) in assembly, then refer to paragraph 13 and separate
bore of housing. On 1020 models, install pinion gear the axle housings from the differential housing. Refer
and shaft (41) and constant velocity universal joint to Fig. 12 and bump bearings (23), differential carrier
(43). On 1010 models, install universal joint (21) (31), ring gear (24) and side cover (33) out of housing
through bearing (12), then install gear (11) and snap (18). Be careful not to mix, damage or lose shims (22L
ring (10). On all models, position shaft (31 or 45) in and 22R) behind both bearings (23).
bearing (30), then locate king pin housing (15) against
axle housing (22) with splines of universal joint mesh- The pinion nut (10) is staked in position and is
ing with splines of shaft (31 or 45). Hold axle housing secured with "Loctite." Hold pinion shaft and remove
and king pin housing in proper position, then install nut (10). Be careful to notice position of shims (15 and
support (29). Make sure that adjusting screw is not 15M) between bearings (13) and behind teeth of pin-
binding and tighten support retaining screws to 70 ion gear (17). Shims (15) adjust preload of bearings
N.m (51 ft.-lbs.) torque. After support retaining (13), and shims (15M) control mesh position of pinion
screws are properly tightened, loosen adjusting screw (17). Bump pinion (17) inward to remove. Drive pin
(26) to make sure that screw is not binding, then (25) out, then remove shaft (26) and parts (27, 28, 29
tighten to 9.8 N.m (7.2 ft.-lbs.) torque and install and 30). Bearings (13), spacer (16), seal collar (12),
locknut (27). Install lower support arm (37) after seal (11) and associated parts can be removed for
upper support is installed and adjusted. Refer to inspection or renewal.

14

Fig^ 12—Exploded view of front axle differential

and drive shaft for 1020 Hydro tractor. Other
models are simitar, but differences will be noted.
Screw (S) and location for one of the screws (F)
are also Indicated In Fig. 10.
1. Coupling
2. Clamp 18. Housing
3. Housing 19. Drain plug
4. Drive shafl 20. Shim
5. "O" rings 21. Front pivot bracket
6. Pivot bracket 22L. Shims
7. Grease fittings 22R. Shims
8. Bushing 23. Bearings
9. "O" rings 24. Ring gear
10. Retaining nut 25. Pin
11. Oil seal 26. Shaa
12. Seal collar 27. Thrust washer
13. Bearing 28. Pinions
14. Snap rings 29. Side gears
15. Shim 30. Thrust washer
15M. Shim 31. Differential carrier
16. Spacer 32. "O" ring
17. Pinion gear 33. Cover

18
 MODELS 1010 & 1020 Paragraph 15 (Cont.)

Ring Gear

Bevel Pinion

Fig. 13—Cross section of typical front drive differentiai

assembiy.

Fig. 15—Determine correct total thickness of shims by

measuring clearance with feeler gauge (F) as shown.

ening nut (10) to 59-79 N.m (44-58 ft.-lbs.) torque.

Shims (15M) between pinion gear and front bearing
are the same as shims (15); however, shims at location
(15M) adjust gear mesh position.
Press carrier bearings (23) firmly onto differential
carrier (31), then install carrier and bearing assembly
into differential housing using shims (22L) that were
originally installed. Make sure that inner bearing is
firmly seated against shims in housing (18), then
check backlash between pinion and ring gear with a
dial indicator mounted as shown in Fig. 14. Correct
Fig. 14—Check gear backlash using a diai indicator (D) backlash is 0.13-0.18 mm (0.005-0.007 in.). Backlash
positioned as shown. is increased by adding shims (22L) between inner
bearing (23) and housing (18). Install cover (33) using
NOTE: On 1010 Hydro tractors, the ring gear (24) at least three evenly spaced screws, omitting "0" ring
and cover (33) are located on left side of pinion. The (32). Flat washers will be necessary if original long
ring gear and cover of all other models are located screws are used to hold cover on while checking.
on the right as shown in Fig. 12 and Fig. 13, Tighten cover retaining screws, then measure clear-
ance between bearing outer race and bore in cover as
Observe the following when assembling differen- shown in Fig. 15. Remove cover (33—Fig. 12) and
tial on all models. Ring gear (24—Fig. 12)) and pinion install shims (22R) equal to the clearance measured
(17) are available only as a matched set. Threads of (Fig. 15). Shims (22L and 22R—Fig. 12) are alike.
screws which attach ring gear (24) to carrier (31) Mesh position of pinion and ring gear can be
should be coated with "Loctite 271" or equivalent checked using appropriate die or red lead on gear
before tightening to 50 N.m (37 ft.-lbs.) torque. teeth. Typical gear mesh patterns are shown in Fig.
Assemble pinion (17) and associated parts (12 16. Shims (15M—Fig. 12) are the same as shims (15);
through 16) in housing (18) using shims (15) that however, shims at location (15M) adjust gear mesh
were removed. Seal (11) should be omitted when position and shims at (15) adjust bearings (13). Mesh
checking bearing adjustment and gear mesh and pattern (B—Fig. 16) indicates that ring gear is too far
should only be installed upon fmal assembly. Tighten away from pinion and can usually be corrected by
nut (10) to 59-79 N.m (44-58 ft.-lbs.) torque, then moving shims (22L—Fig. 12) from inside housing (18)
check torque required to turn pinion shaft in bearings to location (22R) in cover. Mesh pattern (C—Fig. 16)
(13). If rolling torque is not within range of 0.59-0.98 is caused by too little backlash (ring gear too close to
N.m (5.2-8.6 in.-lbs.), add or decrease thickness of pinion). Condition (C) can be corrected by moving
shims (15) between bearings (13) as required. Re- shims (22R—Fig. 12) from cover (33) to location (22L)
check rolling torque after changing shims and tight- in housing (18). Mesh pattern (D—Fig. 16) is caused

19
Paragraphs 16-17 MASSEY-FERGUSON

Fig. 16—Correct mesh position of pinion

and ring gear will be Indicated by a pattern
centered on gear teeth as shown at (A).
Refer to text for corrective action if mesh is
not as shown at (A).

by pinion (17—Fig. 12) too far from center of ring gear shims (15M—Fig. 12). If mesh position of pinion is
and is corrected by adding shims at (15M). Mesh changed by adding or removing shims (15M), it will
pattern (E—Fig. 16) is caused by ring gear too far into be necessary to recheck backlash and change posit ion
ring gear and can be corrected by removing some of shims at (22L and 22R).

ENGINE AND COMPONENTS

FRONT END/ENGINE SPLIT Attach front support to engine by reversing the
removal procedure. Apply "Loctite 271" or equivalent
to the ten screws attaching front support and frame
All Models to sides of engine. Complete assembly by reversing
the removal procedure.
16. To separate the front axle and support from
front of engine, remove any front mounted equip-
ment, guards, weights and weight frame. Unplug
lights, thread wires through retaining clips and lay R & R ENGINE
on top of engine, then remove hood and grille assem-
bly. Disconnect battery cables, drain cooling system, All Models
disconnect radiator hoses and remove air cleaner
hose (if necessary). Disconnect steering drag link and 17. To remove the engine, first refer to paragraph
detach steering cylinder and hoses if equipped with 16 and split tractor between front support and fi ont
power assisted steering. Remove the front pto, if so of engine. Be sure that rear wheels are blocked pi'op-
equipped. Remove the drive shaft from Hydro models erly so that engine can be removed and reinstalled
with four-wheel drive. Detach drive shaft cover from safely. Disconnect wires from engine temperature
other four-wheel-drive models and be prepared to warning gauge sender, oil warning light switch, al ter-
remove drive shaft and cover as the front assembly is nator, starting glow plugs and starter motor. Thread
moved forward. On all models, wedge between axle wires through retaining clips and position out of the
and front support frame to prevent tipping. Support way. Detach tachometer cable from drive on engine,
engine and rear of tractor securely and safely so that throttle rod from pump lever and engine stop cable
front support and frame can be unbolted and re- from pump stop lever. Shut fuel off at tank, disconnect
moved. Support the front axle, front support, battery fuel lines f*rom pump and fuel filters, then remove the
and radiator to prevent uncontrolled movement, then fuel filter assembly from engine. Lower three-point
remove the five screws that attach frame to each side hitch, drain transmission, then remove hydraulic
of engine. Carefully move the front axle, front sup- pressure line between pump and hydraulic lift cover.
port, battery and radiator assembly forward away Remove hydraulic suction line from filter to hydraulic
from engine. pump. Cover all fuel system and hydraulic system

20
 MODELS 1010 & 1020 Paragraph 18
lines as they are disconnected to prevent the entrance pressed from head via holes for glow plugs. Swirl
of contaminants. chambers should be interference fit in cylinder head
Attach hoist to the engine, then unbolt and remove bore. Press chilled swirl chambers into head with
the starter motor. Remove the remaining five nuts opening offset 15° toward rear as shown in Fig. 19.
from screws and two nuts from studs attaching the Check for tightness after swirl chamber has warmed
engine to clutch housing. Carefully move the engine to room temperature, but before installing cylinder
forward away from clutch housing and transmission. head.
To reinstall engine, reverse the removal procedure Be sure gasket surfaces of cylinder head and block
and observe the following. Turn flywheel to align are clean and dry, install new cylinder head gasket
clutch plate splines and install retaining screws and dry, then carefully position head without sliding.
nuts after engine and clutch housing flanges are Tighten cylinder head retaining screws in the se-
completely together. Tighten retaining screws and
nuts to 70 N.m (52 ft.-lbs.) torque. Reverse removal
procedure and refer to paragraph 16 for attaching
front support.

CYLINDER HEAD

All Models

18. REMOVE AND REINSTALL. To remove cyl

inder head, first drain cooling system and remove
muffler and muffler cover. Disconnect battery ground
cable and remove air cleaner. Disconnect upper radia-
tor hose and by-pass hose from thermostat housing.
Disconnect wire from temperature sensor in thermo-
stat housing, and fuel pressure and return lines from
kinjectors. Remove rocker arm cover and rocker arm
^assembly, then withdraw push rods. Remove cylinder
head retaining screws in reverse of order shown in
Fig. 17, then carefully lift head from engine.
Refer to appropriate paragraphs for servicing
valves, guides and springs. Check cylinder head for
flatness using a straightedge and feeler gauge. Dis-
cretion is recommended when checking for distortion,
but generally 0.05 mm (0.002 in.) limit can be ob-
served when checking from front to rear and from side
to side. Because of the swirl chamber inserts (13—
Fig. 18), resurfacing the cylinder head is not recom-
mended. Swirl chambers are a tight fit, but can be
14

8 11 4 10 1 9 5

Fig. 18—Exploded view of cylinder head used on 1010

models. Other models are similar. Early engines may not
be equipped with center rocker shaft support, but will
have two snap rings in center grooves instead.
FRONT 1. Rocker cover
2. Snap ring 13. Swirl chamber insert
3. Rocker shaft 14. Inlet valve
4. Rocker arm 15. Exhaust valve
5. Shaft support 16. Temperature sender
6. Lock screw 17. Thermostat housing
7. Spacer spring 18. Thermostat
8- Seal 19. By-pass hose
9. Spring 20. Locknut
10. Spring cap 21. Adjuster screw
Fig. U^Tighten cylinder head retaining screws in the 11. Keepers 22. Push rod
order shown. 12. Glow plug 23. Cam follower

I 21
Paragraphs 19-21 MASSEY-FERGUSON

To check valve clearance, align the front (No. 1)

cylinder TDC marks on crankshaft pulley with timing
pointer on timing gear cover.
FRONT - • NOTE: Crankshaft pulley may be marked for more
than front cylinder TDC. When front cylinder is at
TDC of compression stroke (both valves closed),
exhaust valve for second cylinder (fourth valve from
front) will just begin to open.

Measure the clearance between rocker arms and

intake and exhaust valve stems of front cylinder
OOO using a feeler gauge. To adjust clearance, loosen
locknut (20—Fig. 18) and turn adjusting screw (21).
Tighten locknuts to 44 N.m (33 ft.-lbs.) torque when
oo adjustment is complete. Cylinder firing order is 1 3-2
and crankshaft interval between cylinders TD(] is
240°. Repeat the adjustment procedure for the tliird
(rear) and second cylinders.
Tighten the two cap nuts retaining rocker cover to
2-3 N.m (18-26 in.-lbs.) torque.
/r/g ig^swirl chambers (13) are interference fit in cylin-
der head and should be chilled before installation. Open- VALVES, GUIDES AND SEATS
ing must be aiigned as shown, offset 15° toward rear.
Ail Models
quence shown in Fig. 17, using the following proce-
dure. First tighten the eight 12M screws (1 through 20. Inlet and exhaust valves are not interchange-
8) to 44-49 N.m (33-36 ft.-lbs.) torque and the three able. Valve seats can be reconditioned using 30°, 45°
lOM (9 through 11) to 20-25 N.m (15-18 ft.-lbs.) and 60° stones. Preferred order of grinding is 60°, 30°, i
torque. After completing the first tightening, begin at then 45° (Fig. 20). Valve seat and face angles should^
screw (1) and tighten the 12M screws to final torque both be 45° for inlet and exhaust valves. Seat w dth
of 88-98 N.m (65-72 ft.-lbs.) torque and the lOM (A) should be 1.4 mm (0.055 in.). Install new valve if
screws (9 through 11) to 39-49 N.m (29-36 ft.-lbs.) margin (B) is less than 0.5 mm (0.020 in.). Valves
should be recessed (C) 0.5-0.6 mm (0.020-0.023 in.)
torque.
from gasket surface of cylinder head. Valve stem
Remainder of assembly procedure is reverse of diameter on 1010 models should be 7.945-7.960 mm
removal procedure. Tighten nuts and one screw (if so (0.3128-0.3134 in.) for inlet valves; 7.920-7.935 mm
equipped) retaining the rocker shaft assembly to 30- (0.3118-0.3124 in.) for exhaust valves. Valve stem
39 N.m (22-29 ft.-lbs.) torque. Tighten the two cap diameter for 1020 models should be 7.945-7.960 mm
nuts retaining rocker cover to 2-3 N.m (18-26 in.-lbs.) (0.3128-0.3134 in.) for inlet valves; 7.910-7.925 mm
torque. Refer to paragraph 19 for adjusting valve (0.3114-0.3120 in.) for exhaust valves. End of valve
clearance. stem should not be ground away from any vah e of
any model more than 0.5 mm (0.020 in.). Install new
NOTE: Cylinder head screws should be checked inlet and exhaust valve stem seals each time valves
for correct final tightening torque following initial
warm-up and cool-down. After completing assem-
are serviced.
bly, start and run engine until it has reached normal Inlet and exhaust valve guides are not removable
operating temperature, allow engine to cool com- and manufacturer recommends that cylinder head be
pletely, then check tightening torque and valve renewed if excessive clearance cannot be reduced by
clearances. installation of new valves.

VALVE CLEARANCE VALVE SPRINGS

All Models All Models

19. Check and adjust valve clearance with engine 21. Model 1010 tractors are equipped with one ^
cold and not running. Recommended valve clearance valve spring on each valve and 1020 models are ^
(tappet gap) is 0.3 mm (0.012 in.) for inlet valves; 0.35 equipped with two springs on each valve. Springs for
mm (0.014 in.) for exhaust valves. inlet and exhaust are interchangeable on all models.

22
 I
MODELS 1010 & 1020 Paragraphs 22-24

Fig. 20—Drawing of
vaives and seats
showing desired di-
mensions,
A. Seat width (1.4 mm)
B. Valve margin
(0.5 mm)
C. Valve recession
(0.5-0.6 mm)

T
Install new springs if distorted, discolored by heat, or Tighten nuts and one screw (if so equipped) retain-
fail to meet the following test specifications. ing the rocker shaft assembly to 30-39 N.m (22-29
1010 Models ft.-lbs.) torque. Refer to paragraph 19 for adjusting
Pressure at — valve clearance. Tighten the two cap nuts retaining
Closed length 70.6-86.2 N ® 34 mm rocker cover to 2-3 N.m (18-26 in.-lbs.) torque.
(15.87-19.38 lbs. @ 1.34 in.)
(7.20-8.79 kg ® 34 mm) CAM FOLLOWERS
Open length 218.5-267.5 N @ 23.8 mm
(49.12-60.14 lbs. ® 0.937 in.) Aii Models
(22.28-27.28 kg ® 23.8 mm)
' 1020 Models 23. All models are equipped with mushroom type
Inner spring — cam followers which can only be removed from below
Pressure at — after removing the camshaft. Diameter of cam fol-
Closed length 51.0-62.7 N @ 31.5 mm lower stem is 13.94-13.96 mm (0.5488-0.5496 in.) and
(11.47-14.10 lbs. @ 1.24 in.) diameter of bore in block is 14.00-14.018 mm (0.5512-
(5.20-6.39 kg® 31.5 mm) 0.5519 in.). If clearance exceeds 0.12 mm (0.0047 in.),
Open length 162-201 N @ 21.8 mm install new cam follower. Check bottom surface that
(36.42-45.19 lbs. @ 0.858 in.) contacts camshaft and renew if scuffed or worn.
(16.52-20.50 kg @ 21.8 mm) Check camshaft carefully if cam follower shows any
Outer spring — unusual wear. Lubricate cam followers, block bores
Pressure at — and camshaft thoroughly before assembling to make
Closed length. 105.8-129.4 N @ 34 mm sure parts are not scuffed immediately upon starting.
(23.78-29.09 lbs. @ 1.34 in.)
(10.79-13.20 kg® 34 mm) VALVE TIMING
Open length 252.8-311.6 N ® 23.8 mm
(56.83-70.05 lbs, ® 0.937 in.)
(25.78-31.77 kg® 23.8 mm) Aii Modeis

24. Valves are properly timed when marks on gears

ROCKER ARMS are aligned as shown at (M—Fig. 21). Because ofthe
number of teeth on idler gear, the timing marks will
Ali Modeis only align every 14 revolutions of the crankshaft.
Alignment can be checked by turning crankshaft
22. Inlet and exhaust valve rocker arms are inter- until ke3^ay is vertical, then checking location of
changeable. Rocker arms are lubricated by oil deliv- mark on camshaft gear. If mark on camshaft gear is
ered to the rocker arm shaft via a drilled passage in away from idler gear, turn the crankshaft one com-
cylinder head. Early engines are not equipped with plete turn until ke3^way is again vertical. Remove
center rocker shaft support, but will have two snap snap ring retaining idler gear, then reinstall with
rings in grooves of shaft to separate center rocker marks (M) on all gears aligned. Do not lose or damage
arms instead. thrust washers located on both sides of idler gear.

23
Paragraph 25 MASSEY-FERGUSON

Thrust washers are available in various thicknesses

to adjust axial clearance of idler gear on shaft.

TIMING GEAR HOUSING

Ali Modeis
25. To remove the timing gear housing (10—Fig.
22), first drain cooling system and engine crankt ase.
Refer to paragraph 16 and spht tractor between iront
support and front of engine. Be sure to block rear
wheels properly. Disconnect the throttle rod irom
control lever and engine stop cable from stop l*iver.
Remove alternator, fan, water pump pulley and drive
belt. Use appropriate puller and remove crankshaft
pulley. Unhook return spring from throttle lever, re-
move the rack cover (24) from pump, then unhook
P/g. 21—View of timing marks (M) on crani^shaft gear (1), spring (S—Fig. 23) and connecting plate (P) from
Idler gear (2), injection pump gear (3) and camshaft gear
(4) aiigned. Hydraulic pump is mounted at (P) and is
rack. Remove screws and stud nuts retaining timing
driven by camshaft gear. gear housing to front of engine, then remove housing.

10

Fig. 22—View of timing gear housing, gears and engine front cover.
1. Crankshaft gear 19. Cam drive key
2. Idler gear 7. Washer 14. Injection pump camshaft 20. Pump drive hearings
3. Injection pump 8. Crankshaft pulley & front bearing 21. Gasket
drive gear 9. Crankshaft front oil seal 15. Thrust washers 22. Pump drive housing |
4. Camshaft gear ' 10. Timing gear housing 16. Snap ring 23. Adjusting shim
5. Hydraulic pump 11. Timing pointer 17. Idler shaft 24. Rack cover
drive gear 12. Woodruff key 18. Cam gear retaining 25. Engine front plate
6. Nut 13. Governor assy screw & washers 26. Gaskets

24
 MODELS 1010 & 1020 Paragraphs 26-27
should be exercised to prevent pushing plug from rear
of engine when installing gear. Use "Loctite 271" or
equivalent on threads of screw (18) after gear is
installed. Tighten retaining screw to 34-39 N.m (25-
29 ft.-lbs.) torque.
Backlash between idler gear (2) and injection pump
drive gear (3) should be 0.10-0.20 mm (0.004-0.008
in.) and should not exceed 0.3 mm (0.012 in.). Injec-
tion pump camshaft end play should be 0.1-0.3 mm
(0.004-0.012 in.) and can be checked with a dial
indicator before removing drive gear (3). Further
disassembly of pump is required to adjust shaft end
play. Refer to paragraph 41 for servicing governor and
injection pump camshaft. Injection pump gear can be
removed using a suitable puller without removing the
pump camshaft, but extreme care should be exercised
Fig. 23—Unhook spring (S) and connecting plate (P) from when installing gear. Use "Loctite 271" or equivalent
injection pump rack before unboiting timing gear hous- on threads of gear retaining nut. Tighten retaining
ing. nut to 25-34 N.m (18-25 ft.-lbs.) torque.
Axial (fore and aft) play of idler gear (2) should be
0.1-0.3 mm (0.004-0.012 in.). Thrust washers (15) are
Be careful not to damage housing or engine front
plate when separating. available in several thicknesses to provide correct
axial play. Idler gear (2) can be removed from shaft
Refer to paragraph 26 for inspecting gears and to (17) after removing snap ring (16). Do not lose or
paragraph 24 for checking gear timing. Clean and damage thrust washers (15).
inspect all surfaces of timing gear housing and engine
front plate carefully. Refer to paragraph 41 for service Hydraulic pump drive gear bearings (20) should be
to governor linkage. Always install new crankshaft adjusted by adding sufficient shims (23) to just re-
I front oil seal when assembling. move all end play. Measure distance that the rear
bearing (20) protrudes from rear of engine front plate
Crankshaft front oil seal should be pressed into
(25). Measure protrusion with new gasket (21) in
bore with closed side out and flush with front surface
place, then subtract protrusion from 4.8 mm (0.189
of housing or until it bottoms in bore. Pack seal with
in.), which is the depth of pocket in housing (22). Add
light grease and coat crankshaft pulley surface with
shims (23) equal to the difference.
oil to assure initial lubrication. If removed, reinstall
hydraulic pump drive gear before installing timing If engine front plate (25) is removed, clean all old
gear housing. Tighten crankshaft pulley retaining gasket and sealer from front plate and engine block.
nut to 98 N.m (72 ft.-lbs.) torque. Apply a coating of RTV sealer to outside horizontal
and vertical joint surfaces between block and front
main bearing cap just before installing gasket and
TiMiNG GEARS engine front cover. Refer to paragraph 24 for align-
ment of gear timing marks and to paragraph 25 for
Aii Modeis installation of timing gear housing.
26. Refer to Fig. 22 for exploded view of timing
gears and associated parts. CAMSHAFT
Backlash between idler gear (2) and crankshaft
gear (1) should be 0.05-0.20 mm (0.002-0.008 in.) and Aii Modeis
should not exceed 0.3 mm (0.012 in.). Crankshaft gear
is a tight interference fit on crankshaft. Crankshaft 27. The camshaft can be removed and installed by
gear can be pressed from crankshaft after crankshaft removing the rocker arms assembly, hydraulic pump,
is removed from engine. engine oil pump, tachometer drive, timing gears, and
Backlash between idler gear (2) and camshaft gear engine front plate. Use magnets to raise the cam
(4) should be 0.05-0.20 mm (0.002-0.008 in.) and followers, then withdraw camshaft. It is not neces-
should not exceed 0.3 mm (0,012 in.). Camshaft end sary to remove the engine, but removal is usually
play should be 0.1-0.3 mm (0.004-0.012 in.) and preferred.
should be checked before removing camshaft gear (4). Refer to paragraph 23 and inspect the cam follow-
Camshaft gear can be removed using a suitable puller ers. Carefully measure camshaft and bearing bores,
without removing the camshaft, but extreme care then compare with the values which follow.

25
Paragraphs 28-29 MASSEY-FERGUSON

Camshaft front joumal— sure that tangs of connecting rod bearings engage
Journal diameter 45.910-45.925 mm notches in connecting rod and cap. Tighten conaect-^
(1.8075-1.8081 in.) ing rod bolts to 44-54 N.m (33-40 ft.-lbs.) torque Roc
Bearing bore diameter 45.946-46.002 mm side clearance on journal should be 0.10-0.33 mm"
(0.004-0.012 in.). Apply RTV sihcone to threads of oil
(1.8089-1.8111 in.)
pump pickup tube before installing. If pickup is mul-
Bearing clearance 0.021-0.092 mm
tiple-piece type, tighten locking nut to 29.4-39.2 N.m
(0.0008-0.0036 in.) (22-29 ft.-lbs.) torque.
Camshaft lobe height—
New 38.80 mm PiSTON, RiNGS AND CYLiNDER
(1.5276 in.)
Wear hmit 38.70 mm Ail Models
(1.5236 in.)
Lubricate cam followers, block bores, camshaft 29. Pistons are fitted with two compression rings
journals and cam lobes thoroughly before assembling and one oil control ring. Pistons and rings are avail-
to make sure parts are not scuffed immediately upon able in standard size and 0.5 mm oversize. Examine
starting. Refer to paragraph 26 for installing timing cylinder bore carefully and rebore it to oversize if out
gears, to paragraph 24 for timing the gears, to para- of round or taper exceeds 0.15 mm (0.006 in.). C Cylin-
graph 25 for instalhng timing gear housing, to para- der head surface of block must be flat within 0.1 mm
graph 17 for installing the engine, to paragraph 16 (0.004 in.). If cylinder block surface is machined, do
for attaching the front support, to paragraph 22 for not remove more than 0.15 mm (0.006 in.) and check
to be sure that pistons do not protrude at TDC. Refer
installing the rocker arms, and to paragraph 19 for
to the following specifications:
adjusting valve clearance.
ROD AND PiSTON UNiTS
1010 Models
Aii Modeis Piston skirt diameter at bottom of
28. Connecting rod and piston units are removed skirt right angles to pin —
from above after removing the cylinder head as out- Original piston 69.91-69.93
lined in paragraph 18, the engine oil pan and the oil (2.7424-2.7531
pickup. Be sure that all connecting rods and matching Cylinder bore original
caps are marked with the cylinder numbers, begin- diameter 70.000-70.019 mm
ning with "1" for front cylinder. Remove ridge at top (2.7559-2.7567 in.)
of cylinder, unbolt and remove connecting rod cap, Piston skirt clearance 0.07-0.109 mm
then push connecting rod and piston up out of the (0.0027-0.0043 in.)
cylinder block. Refer to paragraph 29 for service to Ring side clearance in groove —
pistons, rings or cylinder. Refer to paragraph 30 for Second ring 0.05-0.09 mm
servicing piston pin. Refer to paragraph 31 for service (0.0020-0.0035 in.)
to connecting rod and rod bearings. Bottom (Oil) ring 0.03-0.07 mm
Connecting rod and cap parting line is slanted, (0.0012-0.0028 in.)
offsetting rod bolts toward camshaft (left) side of Ring end gap (all rings) 0.02-0.04 mm
engine. On 1010 models, the notch (N—Fig. 24) in top ((0.0079-0.0157 in.)
of piston must be toward front of engine. On 1020 1020 Models
models, channel (C) in top of piston should be angled Piston skirt diameter at bottom of
toward rear and located on right side of engine. skirt right angles to pin —
Lubricate all parts thoroughly before instalhng Original piston 74.91-74.93 mm
and position ring end gaps as shown in Fig. 24. Make (2.9492-2.9500 in.)

Top fing end gap

Top ring end gap

Fig. 24—For proper sealing, ring end gaps

should be located as Indicated when in-
stalling piston in cyiinder. Pistons must be
attached to connecting rods so that they
wiii be installed as shown. Notch (N) in tot ^
of 1010 pistons must be toward fron\
Channel (C) in top of 1020 pistons must bi
angied toward rear and on engines right
FRONT FRONT side.

26
 MODELS 1010 & 1020 Paragraphs 30-32

PiSTON PiN

Aii Modeis

il 30. The piston pin is a tight press fit in connecting

rod. Pin can be pressed from connecting rod if piston
is properly supported. Piston pins should not be
reused after installation and subsequent removal
from connecting rod. Piston pin diameter is 23.990-
Front 23.996 mm (0.9445-0.9447 in.) for 1010 models. Pis-
ton pin diameter is 24.989-24.999 mm (0.9839-0.9841
in.) for 1020 models.

CONNECTiNG ROD AND BEARiNGS

Fig. 25—View showing installation of piston to connect-
ing rod and installation of rings on pistons for 1010 All Modeis
modeis. Notch (N) in top of piston and manufacturers
numbers on connecting rod must be toward front of 31. Connecting rod and crankpin bearing inserts
engine.
are available in standard size, 0.25 mm undersize
and 0.50 mm undersize. Crankpin standard size is
47.960-47.980 mm (1.8882-1.8890 in.). Connecting
rod bearing to crankpin diametral clearance should
r \ \ be 0.03-0.095 mm (0.0012-0.0037 in.) and should
t \
1 1 \ never exceed 0.15 mm (0.006 in.). Rod side clearance
r
11 on journal should be 0.10-0.33 mm (0.004-0.012 in.).
1
' / Inside diameter of connecting rod lower end should
not exceed 51.019 mm (2.0086 in.) with rod bolts
' Fr
tightened to 44-54 N.m (33-40 ft.-lbs.) torque. Inspect
connecting rod to make sure that piston pin bore and
crankpin bore are parallel.
Inspect connecting rod bolts carefully if bolts are to
reused. Discard any bolt that is: 1. Cracked, nicked,
scratched or dented not parallel to axis of bolt. 2.
Dented or scratched under head extending into
shank. 3. Scratched or dented deeper than 0.2 mm
Fig. 26^On 1020 models, channel (C) in top of piston must (0.008 in.) along longitudinal axis of bolt. I
be angled toward rear and on right side of engine. Manu-
facturers numbers on side of rod shouid be toward front
and rod cap is offset toward camshaft (left) side of engine. CRANKSHAFT AND MAiN BEARiNGS

Aii Modeis
Cylinder bore original
diameter 75.000-75.019 mm 32. The crankshaft is supported in four slip-in,
(2.9527-2.9535 in.) precision type main bearings. To remove the main
Piston skirt clearance 0.07-0.109 mm bearing inserts, it is necessary to remove the engine
(0.0027-0.0043 in.) from tractor as outlined in paragraph 17. Remove
Ring side clearance in groove — cylinder head as outlined in paragraph 18 and timing
Second ring 0.05-0.09 mm gear housing as outlined in paragraph 25. Remove
(0.0020-0.0035 in.) push rods, drain engine oil and remove oil pan. Re-
Bottom (Oil) ring 0.03-0.07 mm move timing gears using paragraph 26 as a guide,
(0.0012-0.0028 in.) then unbolt and remove the engine front plate (25—
Ring end gap (all rings) 0.02-0.04 mm Fig. 22). Remove clutch, flywheel and rear engine
(0.0079-0.0157 in.) plate from rear of engine. Remove oil pickup tube and
make sure that all ofthe connecting rods and caps are
Install piston rings in grooves as shown in Fig. 25 marked with cylinder position. Unbolt and remove
or Fig. 26. Ring end gaps should be located as shown connecting rod caps. Connecting rods can be pro-
in Fig. 24 when installed in cylinder, to assure proper tected to prevent damage and pistons can remain in
initial sealing. block, but most prefer to remove the rod and piston

27
Paragraphs 33-35 MASSEY-FERGUSON

units from block. Invert engine, make sure that main 26 when installing engine front cover and tinning
bearing caps are marked for correct position, then gears and to paragraph 25 when installing tinning
unbolt and remove main bearing caps. Front and rear gear housing. Refer to paragraph 33 for installation
main bearing caps are sealed with RTV silicone to of rear oil seal, retainer housing and engine rear
prevent leakage and may be difficult to remove. Lift plate. Refer to paragraph 18 for installation of cylin-
crankshaft from cylinder block bores, being careful der head. Apply RTV silicone to threads of oil pb mp
not to damage or mix main bearing inserts. pickup tube before installing. If pickup is multiple-
piece type, tighten locking nut to 30-39 N.m (22-29
NOTE: Main and rod bearing inserts should al- ft.-lbs.) torque.
most always be renewed when reassembling, but
inspection and investigation is easier if bearing
inserts can be matched and checked with the appro-
CRANKSHAFT REAR OiL SEAL
priate bearing surface.
Aii Models
Inside diameter of standard size main bearing in-
serts with cap installed and tightened to 58 N.m (43 33. The lip type crankshaft rear oil seal is contained
ft.-lbs.) torque should be 60.000-60.045 mm (2.3622- in a retainer housing attached to the rear of cylir der
2.3640 in.). Crankshaft main journal standard di- block. To remove the seal and housing, it is necessary
ameter is 59.960-59.985 mm (2.3606-2.3614 in.). to separate the engine from the clutch housin^^ as
Main bearing inserts are available in standard size, outlined in paragraph 38, then unbolt and remove the
0.25 mm undersize and 0.50 mm undersize. Dia- engine rear plate. Remove the five screws attaching
metral clearance between main bearing insert and seal retainer housing to rear face of block, then stipa-
main journal should be 0.030-0.095 mm (0.0012- rate by prying at locations indicated by arrows.
0.0037 in.) and should not exceed 0.15 mm (0.006 in.). Press new seal into housing with lip toward inside.
Crankshaft end play should be 0.1-0.3 mm (0.004- Coat seal lip with light grease and crankshaft seal
0.012 in.) and is controlled by thrust bearing inserts surface with engine oil. Apply a coating of RTV sealer
located on both sides of the third main bearing cap. to outside horizontal and vertical joint surfaces be-
Thrust bearing inserts are located on dowel pins in tween block and rear main bearing cap, and to lower
cap to prevent rotation. Standard thickness, 0.25 mm
thicker and 0.50 mm thicker thrust bearings are
available to limit crankshaft end play.
Front and rear bearing caps are sealed with RTV
arch of cap contacted by the seal retainer. Install seal
and retainer housing using a new gasket, tighten the
five retaining screws and install engine rear plate. i
silicone, which must be completely removed before FLYWHEEL
assembling. Be sure to clean main bearing caps and
cylinder block carefully, then lubricate all bearings Aii Modeis
and bearing journals with clean oil while assembling.
Make sure that tabs of main and rod bearing in- 34. The flywheel is positively located on crankshaft
serts correctly and completely engage notches in by a dowel pin and four retaining screws. Refer to
block, connecting rod and caps. Be careful not to bend paragraph 56 and separate engine from clutch hous-
or otherwise damage the thrust bearings while locat- ing, unbolt and remove clutch assembly from re^tr of
ing on pins of cap. Assemble main bearing caps in flywheel. Remove the four retaining screws and care-
original locations and tighten retaining screws to fully pull flywheel from crankshaft and dowel pin.
73-82 N.m (54-61 ft.-lbs.) torque. The arrows cast into Make sure that mating surfaces of flywheel and
center two caps point toward front of engine. Front crankshaft are clean and free of dirt, rust and burrs.
face of front main bearing cap must be flush with Tighten retaining screws in a diagonal pattern to
front surface of cylinder block and rear face of rear 44-49 N.m (33-35 ft.-lbs.) torque. Refer to paragraph
main bearing must be flush with rear surface of 57 for installation of clutch assembly.
cylinder block after retaining screws are tightened.
Front and rear main bearing caps are sealed at
sides with sealing blocks which are inserted into OIL PAN
grooves between cap and cylinder block. Coat sealing
blocks with RTV silicone, before inserting into gaps Ali Models
between cylinder block and caps, then apply addi-
tional sealer to end of installed sealer block. Addi- 35. The oil pan can be removed from all two-wheel-
tional RTV sealer is applied to surface of cylinder drive models after draining engine oil, removing the
block and cap just before installing engine front plate steering tie rod, then unbolting and removing the oil
and rear seal retainer housing. pan from bottom of engine.
Refer to paragraphs 28 and 31 for installation of To remove the oil pan from four-wheel-drive mod-
connecting rod bearings and caps. Refer to paragraph els, it is necessary to remove the drive shaft. On

28
 MODELS 1010 & 1020 Paragraph 36
models with standard transmission, it is necessary to Oil pressure can be checked by removing the oil
separate the front support as outlined in paragraph pressure switch (11—Fig. 27) just in front of pump
16 to remove the drive shaft and cover. The drive shaft and attaching a test gauge to port. Correct oil pres-
and cover can be removed from Hydro models with sure is 98 kPa (14.2 psi) at 800 rpm or 490 kPa (71.0
four-wheel drive without removing the front axle psi) at 2700 rpm. Low oil pressure may be caused by
assembly. damaged or maladjusted relief valve, worn or dam-
On all models, old gasket and sealer should be aged pump or plugged or loose oil pickup tube.
thoroughly cleaned from the surface ofthe oil pan and
the lower surface of the cylinder block. Apply RTV To remove the oil pump, first remove the engine oil
silicone to lower surfaces of the joint between block, filter (24), remove the two 8M screws and one 8M nut
front main bearing cap and rear main bearing cap retaining pump to engine, then withdraw pump.
before installing oil pan with new gasket. Pump cover (19) is also the relief valve housing and
oil filter housing. Cover is attached to pump with two
OIL PUMP 6M screws. '
Aii Modeis
Tip clearance of rotors should be 0.07-0.12 mm
36. The engine oil pump is mounted on the left side (0.0028-0.0047 in.) and pump gerotor set (18) should
of engine and is driven by gear on engine camshaft. be renewed if clearance exceeds 0.2 mm (0.008 in.).

Fig. 27—The engine oii pump is driven by gear on engine camshaft and drive assembiy (9) is driven by same gear. Some
fpodeis may have singie-piece oii pickup instead of type shown at (25 through 28).
1. Dowel pin 8. Gasket 15. Pump housing & shaft 22. "O" ring
2. Pilot bearing 9. Drive assy. 16. Gasket 23. Plug
3. Flywheel 10. "O" ring 17. Drive pin 24. Oil filter
Screws 11 Oil pressure switch 18. Pump gerotor set 25. Pickup tube
Engine rear plate 12 Gasket 19 Pump cover 26. Nut
Crankshaft rear oil seal 13 Drive pin 20 Relief valve 27. Oil pickup
Seal retainer housing 14 Drive gear 21 Pressure relief spring 28. Screen

29
Paragraphs 37-38 MASSEY-FERGUSON

End clearance of rotors (18) in body should be 0.03- Reverse removal and disassembly procedures
0.06 mm (0.0012-0.0024 in.) and pump should be when assembling and use new gaskets. Hand tighten
renewed if end clearance exceeds 0.1 mm (0.004 in.). oil filter. If removed, apply RTV silicone to threads of|
Clearance between outer rotor and pump body should oil pump pickup tube before installing. If pickup is
be 0.10-0.18 mm (0.0039-0.0071 in.) and pump should multiple-piece type (25 through 28), tighten locking
be renewed if clearance exceeds 0.2 mm (0.008 in.). nut (26) to 30-39 N.m (22-29 ft.-lbs.) torque.

DIESEL FUEL SYSTEM

All models are equipped with a three plunger and filled with new oil at least every 400 hours of
Diesel Kiki injection pump, pintle nozzles and operation or when seasonal changes in engine oil are
swirl chamber combustion chamber. required. The oil drain plug is shown at (1—Fig. 28).
Because of extremely close tolerances and precise Fill with required quantity of oil by removing cover
requirements of all diesel components, it is of the (2).
utmost importance to use clean fuel and that careful
maintenance be practiced at all times. Unless neces- 38. BLEEDING. The fuel system should be bled if
sary special tools are available, service to injectors fuel tank is allowed to run dry, if fuel lines, filtt r or
and pumps should be limited to removal, installation other components within the system have been dis-
and exchange of complete assemblies. It is impossible connected or removed. If the engine fails to start or
to recalibrate an injection pump or reset an injector starts, then stops, the cause could be air in the fuel
without proper specifications, equipment and train- system, which should be removed by bleeding.
ing.
To bleed, make sure that tank has sufficient
FUEL FILTERS AND LiNES amount of clean fresh fuel, then open the shut-off
valve located on fuel filter. If filter bowl doesn't fill,
loosen bowl slightly until bowl fills with fuel. Looseni
Ali Modeis small screw (3—Fig. 28) IV2-2 tums counterclock-'
wise and allow air bubbles and fuel to drain irom
37. OPERATION AND MAINTENANCE. The bleed screw, until air bubbles disappear completely.
fuel system includes a fuel filter that should be re- Do not completely remove screw and do not
newed at least every 200 hours of operation and the attempt to run engine with bleed screw open.
lubrication oil in injection pump crankcase should be Close bleed screw, partially open throttle and attempt
checked regularly and changed at 400 hour intervals. to start engine.
Length of filter life depends more upon careful main-
tenance and fuel handling than it does upon hours of If engine doesn't start, loosen high pressure fuel
operation. The necessity for careful filling procedures lines at injectors and continue to crank engine until
with CLEAN fuel cannot be stressed too much. To
minimize contamination of diesel fuel system, the
following precautions are recommended.
Fill fuel tank after use and before storage, to elimi-
nate the presence of humid air in tank and reduce
risk of contamination due to condensation.
Check bottom of fuel filter bowl daily for evidence
of water. Water should be removed before it reaches
level of the filter. Turn fuel off, remove filter, clean
filter bowl and install new filter at least every 200
hours of operation. Install new filter element more
often if water contamination is discovered. Bleed
filter and lines as outlined in paragraph 38 after new
filter is installed. Do not attempt to start engine
until air is bled from system or injection pump
may be damaged.
The injection pump is lubricated by 200 mL (6^/4
oz.) of the same oil used in the engine. Oil in the Fig. 28—Lubricating oii is drained from the fuei injection
injection pump should be checked about every 100 pump by removing plug (1). Add oii through opening
hours or at two week intervals and should be drained iocated under cover (2). Bleed screw is iocated at (3).

30
 MODELS 1010 & 1020 Paragraphs 39-40
fuel escapes from all loosened connections. Tighten
compression nuts and start engine.

INJECTION PUMP
^
Ail Models

Only trained service personnel with proper

tools and equipment should attempt to disas-
semble or adjust the fuel injection pump. Spe-
cific procedures must be performed under
conditions of strict cleanliness, and exact meas-
urements require accurate test equipment.

39. INJECTION TIMING. Start of injection Fig. 30—View of typical crankshaft pulley and timing
should occur at 25° BTDC. The injection pump timing pointer (P). Doubie marks (T) indicate TDC and single
should be checked if any ofthe following components mark (I) indicates 25° BTDC.
have been renewed: injection pump assembly, injec-
tion pump camshaft or timing gears. Timing is ad-
justed by changing the thickness of shims (5—Fig. 29) valve holder (1), delivery valve (3) and spring (2), then
located between injection pump (4) and cylinder block install a test drip tube to the outlet port. Turn engine
mounting surface. Refer to paragraph 40 for remov- crankshaft clockwise until front (No. 1) cylinder is on
ing pump and setting initial timing. compression stroke and TDC mark (T—Fig. 30) on
To check timing of installed pump, shut fuel OFF crankshaft pulley is aligned with timing pointer (P).
at fuel filter shut-ofF valve and remove rocker arm The TDC mark is two marks as shown and, if front
cover. Disconnect injector line from front fitting (de- cylinder is on compression stroke, the exhaust valve
livery valve holder) on pump. Remove the delivery for number two cylinder will be starting to open. Turn
crankshaft counterclockwise (opposite normal direc-
tion of rotation) approximately V3 turn and turn fuel
ON. Fuel should flow freely from the drip tube at-
tached to the front outlet port, then turn crankshaft
clockwise until fuel almost stops flowing (still forms
a drop) from the outlet port. If timing is correct, the
single (first mark) timing mark (I) on crankshaft
pulley will be aligned with pointer. Flow from outlet
port will almost be stopped. If timing is incorrect,
refer to paragraph 40 and remove injection pump and
change thickness of shims (5—Fig. 29). To advance
timing, remove shims; add shims to retard timing.
Refer to the following to help determine the number
of shims to add or remove, but timing must be
checked again after changing shims and assembling.
Shim thickness of 0.05 mm (0.002 in.) will change
timing approximately V2 degree or 0.6 mm (0.023 in.)
on crankshaft pulley rim. Shim thickness of 0.10 mm
(0.004 in.) will change timing approximately one de-
gree or 1.2 mm (0.047 in.) on crankshaft pulley rim.
Shim thickness of 0.2 mm (0.008 in.) will change
timing approximately two degrees or 2.4 mm (0.094
in.) on crankshaft pulley rim. Shim thickness of 0.4
mm (0.016 in.) will change timing approximately four
degrees or 4.8 mm (0.189 in.) on crankshaft pulley
Fig. 29—injection pump timing is changed by adding or
rim.
I reducing thickness of shims (5).
1. Delivery valve holder
2. Spring 5. Shims 40. REMOVE AND REINSTALL. Shut fuel OFF
3. Delivery valve 6. Injection nozzle at fuel filter shut-ofFvalve, disconnect fuel supply line
4. Injection pump 7. Gasket from pump. Remove drain plug (1—Fig. 28) and allow

31
Paragraphs 41-42 MASSEY-FERGUSON

paragraph 39. Reinstall "Ungleich unit" (items 11 to

19—Fig. 33) and complete assembly by reversing
removal procedure. "Ungleich unit" setting is sealed I
and warranty will be void if seal is broken. Those
authorized to adjust this unit will be permitted to
reseal it after adjustment. Correct setting requires
test equipment; however, initial setting is accom-
plished by turning nut until distance (F—Fig. 34) is
19.5 mm (0.768 in.) for 1010 models; 18.5 mm (0.728
in.) for 1020 models.

GOVERNOR AND INJECTION PUMP

CAMSHAFT

All Models
Fig. 31—Unhook spring (S) and connecting plate (P) from 41. REMOVE AND REINSTALL. It is necessary
injection pump rack before unbolting fuei injection pump. to remove the timing gear housing as outlined in
paragraph 25 to service the governor weights, inter-
nal governor linkage and injection pump camshaft.
Remove the sliding sleeve (4—Fig. 33), nut and lock-
washer (1), then withdraw guide (2). Governor fly-
weight bracket (5) can be unbolted and removed from
gear (3) if service is required. Attach puller to gear (3)
and pull gear from injection pump camshaft (9).
To remove the injection pump camshaft (9), remove
the idler gear (2—Fig. 21), the camshaft drive gear
(4) and the governor drive gear (3), then unbolt and|
remove the engine front plate. Refer to paragraph 40
and remove fuel injection pump. Injection pump cam-
shaft (9—Fig. 33) and bearings (8 and 10) can be
Fig. 32—Initial selection of shims (5) Is accomplished by withdrawn from housing bores. When installing the
measuring distance (A) with a depth gauge (G), then injection pump camshaft, install shims (7) between
subtracting this measured distance from fixed height of front bearing and engine front plate to obtain end
pump (B) which shouid be 76 mm (2.992 inch). play of the injection pump camshaft of 0.1-0.3 mm
(0.004-0.012 in.).
lubricant to drain from pump. Remove cover (2), then When assembling, refer to Fig. 21 and paragraph
disconnect spring (S—Fig. 31) and connecting plate 24 for aligning marks on all timing gears, including
from rack. Carefully remove "Ungleich unit," located the injection pump drive gear. Angle between levers
at the rear of injection pump, from the cylinder block. (20 and 22—Fig. 33) should be 36.5°. Tighten nut
Be careful not to disturb setting ofthe "Ungleich unit" retaining tension lever (22) to shaft (21) to 9.8-11.8
while removing. Detach high pressure fuel lines, then N.m (87-104 in.-lbs.) torque. Governor weight lever
unbolt pump from block surface. Align injection pump (20), shaft (21) and tension lever (22) should move
rack pin with notch in upper opening of cylinder smoothly. Refer to paragraph 25 and install the tim-
block, then withdraw pump. Be careful not to damage ing gear housing and to paragraph 42 for adjusting
or lose shims (5—Fig. 29), which adjust injection governor.
pump timing.
42. ENGINE SPEED AND GOVERNOR AD-
To determine thickness of shims to install and set
JUSTMENTS. Usually all governor adjustments
injection pump initial timing, use a depth gauge
will not be required at the same time.
(C—Fig. 32) and measure distance from the pump
mounting surface of block to the low circle of pump The stop screw adjustment is accomplished by first
drive cam as shown. Subtract this measured distance loosening locknut and backing stop screw (A—Fig.
(A) from fixed height of pump (B), which should be 76 34) out. Move the pump control rack to the most |
mm (2.992 in.). Install shims (5) equal to the remain- forward position by hand and turn screw (A) in until
ing distance. This procedure will provide initial tim- it just contacts the rack control. Turn stop screw (A)
ing, but final timing should be checked as outlined in in an additional V2-I turn, which should push rack

32
 MODELS 1010 & 1020 Paragraph 42 (Cont.)
toward rear 0.5-1.5 mm (0.020-0.060 in.), then lock ard; 2650-2700 rpm for all 1010 models and 1020
position with locknut. Hydro.

• Start engine and adjust stop screw (B) to provide

idle speed of 850-900 rpm, then tighten locknut.
Setting ofthe "Ungleich unit" (U), which is a torque
limiting device, is sealed and warranty will be void if
seal is broken. Those authorized to adjust this unit
Position of the high idle speed stop screw (C) is will be permitted to reseal it after adjustment. Cor-
sealed and disturbing seal will void warranties. Cor- rect setting requires test equipment; however, initial
rect high idle speed is 2500-2550 rpm for 1020 Stand- setting is accomplished by turning nut until distance

23

r L i..'5
^ ^ ^ ^ | ^ ^ / • ' \

Fig. 33—Exploded view of governor and injection pump camshaft. Parts (11 through 19) caiied the 'Vngteich unit" are also
shown at (U—Fig. 34). Gear (3) is aiso shown in Fig. 21.
A. Stop screw 18. Gasket
B. Idle stop screw 3. Injection pump gear 10. Rear bearing 19. Relief valve adjusting plug
C. High speed stop screw 4. Sliding sleeve 11. Seal washer 20. Governor weight lever
D. Damper screw 5. Flyweight bracket 12. Locknut 21. Governor shaft
E. Damper spring 6. Woodruff key 13. Valve body 22. Tension lever
P. Connecting plate 7. Shims 14. Ungleich rod 23. Stop lever
S. Rack spring 8. Front hearing 15. Ungleich spring 24. Speed control lever
1. Nut & lock washer 9. Injection pump 16. Start increase rod 25. "O" ring
2. Guide camshaft 17. Start increase spring 26. "O" ring

Fig. 34—Views showing governor and in-

jection pump adjusting points. Cross sec-
tion of "Ungleich unit" shows distance (F)
which shouid be set before instafiing and
maintained whiie instaliing.
A. Stop screw E. Damper spring
B. Idle stop screw F. Setting distance
C. High speed stop screw P. Connecting plate
D. Damper screw U. Ungleich unit

33
Paragraphs 43-46 MASSEY-FERGUSON

(F) is 19.5 mm (0.768 in.) for 1010 models; 18.5 mm

(0.728 in.) for 1020 models.
Adjust damper screw (D) by first loosening locknut
and turning screw out until damper spring no longer
touches governor lever. Turn damper screw (D) in
until spring (E) just contacts governor lever, plus an
additional 1 mm (0.039 in.), then tighten locknut.

INJECTOR NOZZLES

All Models
43. TESTING AND LOCATING A FAULTY
NOZZLE. If engine is misfiring and the fuel system
is suspected, system can be checked by loosening the
high pressure line to each nozzle in turn, while the
engine is running at slow speed. If engine operation
is not materially affected when the line is loosened, Fig. 35^Exploded view of injector nozzle.
that cylinder is the one misfiring. Remove and test 3. Nozzle nut 8. Shim
4. Nozzle 9. Nozzle h(.lder
(or install a new or reconditioned unit) as outlined in 5. Spacer 10. Gasket
appropriate following paragraphs. 6. Push rod H. Banjo fitting
7. Spring 12. Nut
44. REMOVE AND REINSTALL. Manufacturer
recommends that nozzles be removed and new nozzle OPENING PRESSURE. Open valve to te.^ter
gasket (7—Fig. 29) be installed every six months. gauge and operate tester lever slowly while obser\ ing
Thoroughly clean injector, lines and surrounding gauge reading. Opening pressure should be at k ast
area with compressed air and suitable solvent before 13240 kPa (1920 psi). Opening pressure is changed i
removing injector. Disconnect high pressure and re- by adding or removing shims (8—Fig. 35). Set open- '
turn lines from injector, unscrew nozzle nut (3—Fig. ing pressure to 13755-14550 kPa (1995-2110 ps ) if
35) and withdraw nozzle from cylinder head. opening pressure is changed.
Clean exterior surfaces of nozzle assembly and bore
in cylinder head, being careful to keep all surfaces SPRAY PATTERN. Spray pattern should be well
free of dust, lint and other particles until nozzle is atomized and slightly conical, emerging in a straight
installed. Tighten nozzle holder into cylinder to 58 axis from the nozzle tip. If pattern is wet, ragged or
N.m (43 ft.-lbs.) torque. intermittent, nozzle must be overhauled or renewed.

45. TESTING. A complete job of testing and ad- LEAKAGE TEST. Wipe end of nozzle off with a
justing the injector requires the use of special test clean cloth after completing opening and spray pat-
equipment. Only clean, approved testing oil should tern tests. Operate tester until pressure reaches a
be used, and nozzle should be tested for opening pressure 2068 kPa (300 psi) less than opening pres-
pressure, seat leakage, back leakage and spray pat- sure and maintain this pressure. Oil should not drip
tern. When tested, nozzle should open with a high- from nozzle for at least 10 seconds; however, end of
pitched buzzing sound, and should cut off quickly at nozzle may become wet. Leakage can usually be cor-
the end of injection with a minimum of seat leakage rected by cleaning.
and controlled amount of back leakage.
46. OVERHAUL. Do not use hard or sharp tc»ols,
Before conducting test, operate tester lever until emery cloth, grinding compound or other than ap-
fuel flows, then attach injector Close valve to tester
proved solvents or lapping compounds. Approved noz-
gauge and pump tester lever a few quick strokes to
zle cleaning kits are available from specialized tool
be sure that nozzle valve is not stuck, and that
sources.
possibilities are good that injector can be returned to
service without disassembly. Wipe all dirt and loose carbon from exterior of
nozzle and holder assembly. Refer to Fig. 35 for ex-
ploded view and proceed as follows:
WARNING: Fuel leaves injector nozzle with suffi-
cient force to penetrate the skin. Keep exposed
Secure nozzle in a soft jawed vise or holding fixi ure
portions of your body clear of nozzle spray when and remove nut (3). Place all parts in clean calibrat-
testing. ing oil or diesel fuel as they are removed. Use a

34
MODELS 1010 & 1020 Paragraphs 47-50
compartmented pan and exercise care to keep parts immersed in cleaning fluid. Make sure adjusting
from each injector together and separate from other shim pack is intact. Tighten nozzle retaining nut to
units that are disassembled at the same time. 79-98 N.m (58-72 ft.-lbs.) torque. Do not overtighten.
Clean exterior surfaces with a brass wire brush, Distortion may cause valve to stick and no amount of
soaking parts in an approved carbon solvent if neces- overtightening can stop a leak caused by scratches or
sary, to loosen hard carbon deposits. Rinse parts in dirt. Retest assembled injector as previously out-
clean diesel fuel or calibrating oil immediately after lined.
cleaning to neutralize the solvent and prevent etch-
ing of polished surfaces. GLOW PLUGS
Clean nozzle spray hole from inside using a pointed
hardwood stick or wood splinter, then scrape carbon
from pressure chamber using a hooked scraper. Clean
All Models
valve seat using brass scraper.
After cleaning the nozzle, perform nozzle slide test 47. Glow plugs (12—Fig. 18) are connected in par-
as follows: Dip the nozzle and needle in clean fuel, allel, with each glow plug grounding through mount-
ing threads. Starting switch is provided with
then insert the needle into the nozzle. Raise the
"GLOW" position which can be used to energize the
needle approximately one-third of the way out and
glow plugs for faster warm up. Normal starting posi-
then release the needle. The needle must slide all the
tion also energizes the glow plugs but does not cause
way down onto its seat by its own weight. If the needle
"GLOW" lamp on instrument panel to light. If indica-
sticks, reclean the nozzle and repeat the test. If the
tor lamp fails to light when start switch is held in
nozzle fails the test, renew nozzle assembly.
"GLOW" position an appropriate length of time,
NOTE: New nozzles have a protective coating
check for loose connections at switch, indicator lamp,
applied by the manufacturer. The new nozzle body resistor connections, glow plug connections and
and needle must be cleaned in a solvent to remove ground. A test lamp can be used to check for current
the coating prior to reassembly. flow to glow plug. Internal resistance of each glow
plug should be approximately 0.23 ohms. Tighten
Reclean all parts, rinsing thoroughly in clean diesel glow plugs into cylinder head with 15-19 N.m (11-14
fuel or calibrating oil and assemble while parts are ft.-lbs.) torque.

COOLING SYSTEM
RADIATOR THERMOSTAT

All Models All Models

48. Radiator pressure cap is used to increase cool- 49. The thermostat (18—Fig. 18) is located in the
ing system pressure. Valve in cap is set to open at coolant outlet elbow and should begin to open at
about 88 kPa (12.8 psi). Cooling system capacity is 69-73° C (156-163° F). Thermostat should be fully
3.0 L (3.17 qt.) for 1010 models; 4.0 L (4.4 qt.) for 1020 open at 85° C (185° F).
models.
To remove radiator, first drain coolant and remove
hood. Disconnect hose from air cleaner, upper coolant WATER PUMP
hose from thermostat housing outlet on engine, lower
coolant hose from water pump and coolant drain hose. All Models
Disconnect ground cable from battery and positive
cable from starter, then pull positive cable forward. 50. To remove the water pump, first drain coolant
Unbolt transmission oil cooler (2 or 3—Fig. 36) from and remove the radiator. Loosen alternator attaching
Hydro models. Remove screws (1 or 4—Fig. 37), then bolts, then remove fan, water pump and alternator
lift radiator and fan shroud from tractor. drive belt. Unbolt and remove the fan (1—Fig. 38).

35
Paragraph 51 MASSEY-FERGUSON

Fig. 36—Hydro modeis are equipped with ^

transmission oii cooiers ahead of engine
cooiing radiator. Cooier for Modei 1010 Hy-
dro is attached with two screws (2) as
shown at ieft and cooier of 1020 Hydro
modei is attached with three screws (3) as
shown on right.

10

Fig. 37^Remove screws (1) from each side to detactr

radiator from front support frame of 1010 modeis. Remove
screws (4) from eactr side to detach radiator from front
support frame of 1020 modeis.

Remove pump mounting screws and separate pump

from engine. Fig. 38—Expioded view of typicai water pump.
Pump repair parts are available from the manufac- 1. Fan 6. Alternator adjusting strapI
turer, but installation of new pump is often more 2. Spacer 7. Water pump housing
3. Pulley 8. Seal assemhly
satisfactory. Measure distance from front face of hub 4. Hub - 9. Impeller
(4) to rear of pump shaft (5) before disassembling so 5. Shaft & bearing 10. Rear plate
that hub can be installed to correct dimension. Apply
nonhardening sealer to circumference of seal (8) and
carefully press only on outer edge of seal when install-
ing. Press only on outer edge of shaft bearing (5) and thickness of spacer (2) and hub (4) locates fan and
press into housing until front of bearing is flush with pulley. Be sure pulley (3) is aligned with alternator
front of housing. Rear surface of impeller (9) should and crankshaft pulleys. Tighten drive belt until 8-10
be flush with rear end of shaft. Install pump in mm (0.3-0.4 in.) slack can be measured at midpoint
reverse of removal procedure. Location, style and between alternator pulley and crankshaft pulley

ELECTRICAL SYSTEM
ALTERNATOR AND REGULATOR The alternator can be checked independently from
regulator by disconnecting the two wire plug from
alternator, attaching an AC voltmeter across the two
All Models alternator leads, then operating the engine at liigh
speed and observing the voltage. Recorded maximum
51. The GP 8122 alternator used on 1010 models is voltage should be 25 VAC for 1010 models or 30 VAC
regulated by an RS5112 regulator. The GP 9153 al- for 1020 models.
ternator used on 1020 models is regulated by an
RS5104 regulator. The alternator charge indicator Both alternators (Fig. 39) are equipped with sealed
light should go out when engine reaches 1400 rpm for ball bearings and are designed to turn in a clockwise
1010 models or 1000 rpm for 1020 models. Voltage direction as viewed from pulley end. Regulator i^ not j
output from regulator should be 14-15 VDC for all adjustable and should be renewed if not operating
models, output of 1010 models should be 11-12 amps properly. Rpm listed in the following specifications is
and output should be 16-18 amps for 1020 models. alternator rotor speed, not engine speed.

36
MODELS 1010 & 1020 Paragraph 52

Fig. 39—Expioded view of alternator used. Pui-

iey (1) contains permanent magnets.
1. Rotor & pulley
2. Spacer 6. Bearing
3. Bearing 7. Washer
4. Stator 8. Lockwasher
5. Housing 9. Nut

1010 Models Performance at 14 volts —

Alternator model GP 8122 Amps 19.0
Fifeld type Permanent 8 pole Rpm 5000
Maximum speed 12,000 rpm Start charge 13 volts @ 1600 rpm
Performance at 14 volts — Regulator model RS5104
Amps 12.5 Type Series control, Thyrister
Rpm 4000 Regulated voltage 14-15 @ 5000 rpm
Start charge 13 volts @ 1800 rpm Temperature range —
Regulator model RS5112 Cold -20° C (-4° F)
Type Series control, Thyrister Hot 40° C (104° F)
Regulated voltage 14-15 @ 4000 rpm
Temperature range —
Cold -20° C (-4° F) STARTER
Hot 40° C (104° F)
1020 Models All Models
Alternator model GP 9153 52. The Hitachi S114 starter used on these models
Field type Permanent 12 pole has a gear reduction built into the nose ofthe starter.
Maximum speed 12,000 rpm Refer to Fig. 40. The starter can be removed in the

22

Fig. 40—Expioded view of Hitachi starter. Faiiure of starting safety switches may aiso prevent operation of starter.
1. Solenoid
2. Gaskets & shims 7. End cover 12. Brush holder 17. Clutch pinion
3. Plunger 8. Field coil assy. 13. Starter housing 18. Ball bearing
4. Spring 9. Armature 14. Retaining ring 19. Ball bearing
5. Lever 10. Ball bearing 15. Collar 20. Pinion
6. Through-bolts 11. Ballbearing 16. Spring 22. Bearing retainer

37
Paragraphs 53-54 MASSEY-FERGUSON

Fig. 41—Wew of safety starting switch (S) instaiied on

modei with standard transmission. Fig. 42—View of safety starting switch (S) instaiied to
prevent starting except when Range shift iever is in neu-
trai.
usual manner after disconnecting ground cable from
battery. To disassemble, remove the two screws which by-pass safety switches. Wires can be detached
attach solenoid (1), then withdraw solenoid, lever (5), and operation of the switches can be checked with
spring (4) and plunger (3). Remove through-bolts (6), voltmeter or other continuity tester.
then separate rear cover (7), armature (9), field coil
assembly (8) and brush assembly (12). Bearing re- On models with standard transmission, a single
tainer (22) is attached to housing (13) with three safety start switch (S—Fig. 41) is located on left side
screws. ofthe tractor. The switch is actuated by depressing
Refer to the following test specifications: the clutch pedal. The switch on these models should
be adjusted so that starting motor will not operate
Brush length — unless clutch pedal is fully depressed.
Standard 16 mm
(0.6230 in.) On Hydro models, two safety starting switches are
Min. limit . 11 mm installed. One safety switch (S—Fig. 42) is actuated
(0.4331 in.) when range shift lever is in neutral position and i he
Brush springs 1.8 kg other safety switch is actuated when the pto shift
(4 lbs.) lever is in neutral (disengaged) position. Both safety
No load test — switches must be actuated before starter will operate.
Volts 11
Amps 100 max.
Rpm 3900 min.
Lock test — CIRCUIT DESCRIPTION
Volts 4
Amps 750 max. All Models
Torque 27.44 N.m
54. Refer to Fig. 43 for wiring diagram typical of
(20.24 ft.-lbs.) 1010 models and to Fig. 44 for wiring diagram typical
of 1020 models. Two safety starting switches are
SAFETY SWITCHES shown for models with Hydro transmission, but mod-
els with standard transmission are equipped with
only one switch actuated by pressing clutch pedal
All Models down. Notice the fusible link in red wire at starting
53. Safety starting switches are installed to pre- motor solenoid.
vent accidental, unsafe starting. Do not remove or

38
MODELS 1010 & 1020 Paragraph 54 (Cont.)

HEAO LIGHT HEAO LIGHT

ALTERNATOR

FLASHER
\oj UNIT

STARTER

AUX.D

WARNING TAIL \WARNING

LIGHT LIGHT LIGHT

Fig. 43—Wiring diagram typicai of aii 1010 modeis. Hydro equipped modeis have two safety start switches as shown, but
tractors with standard transmissions have oniy one on dutch iiniiage. \
Bk. Black Bn. Brown Or. Orange ' Wh. White
Bl. Blue Gn. Green Rd. Red Yl. Yellow

39
Paragraphs 55-56 MASSEY-FERGUSON

HEAD LIGHT HEAD LIGHT

Fig. 44—Wiring diagram of 1020 Hydro

modei. Modeis with standard transmis-
sion have oniy one safety start switch on
dutch iini^age.
Bk. Black Or. Orange
Bl. Blue Rd. Red
Bn. Brown Wh. White
Gn. Green Yl. Yellow

WARNING
LIGHT

CLUTCH
ADJUSTMENT R & R AND OVERHAUL

All Models All Models

55. Clutch free play (F—Fig. 45), measured at 56. CLUTCH SPLIT. To separate tractor between
pedal, should be 15-20 mm (^/i6-'V4 in.) and is adjusted engine and clutch housing, remove hood, disconnect
by changing length of operating rod (R). Loosen clevis ground cable from battery and block rear wheels.
locknut, remove pin from clevis and turn clevis to Detach drive shaft cover, then disconnect or remove
change length ofthe operating rod. Attach clevis and drive shaft from four-wheel-drive models. On Hydro
tighten locknut after lengthening rod to reduce free models, disconnect hydrostatic oil cooler lines and
play or shortening rod to increase free play. cover the openings. On all models, drain transmission

40
 MODELS 1010 & 1020 Paragraph 57
Disconnect wiring from starting motor, then unbolt
and remove starter. Disconnect hydraulic pressure

•
line from pump and from hydraulic lift cover. Remove
the suction line between hydraulic filter and hydrau-
lic pump. Cover all openings to prevent entrance of
dirt. Remove both fuel tank side brackets, which are
attached to the engine rear plate. Support clutch
housing securely and attach a hoist to engine that will
permit engine and front axle system to be rolled
forward away from clutch and transmission. Wedge
blocks between front axle and front support frame to
prevent engine from tipping. Remove the remaining
five bolts and two stud nuts, then carefully roll the
front axle and engine forward, away from clutch
housing. I

When reassembling, be sure to center clutch disc

using appropriate centering tool. Two additional
alignment (guide) studs may be used to assist align-
Fig. 45—Free piay (F) of dutch pedai is adjusted by ment. Turn fiywheel to align clutch plate splines and
changing iength of operating rod (R),
install retaining screws and nuts after engine and
clutch housing fianges are completely together. Align
and disconnect drag link from steering arm, located drive shaft of four-wheel-drive models when joining
under the clutch housing. Shut fuel off at filter, drain engine to clutch housing. Tighten retaining screws
fuel tank and remove fuel line from tank to filters. and nuts to 70 N.m (52 ft.-lbs.) torque.
Detach fuel return lines from injectors. Disconnect
speed control rod and engine stop cable from engine 57. REMOVE AND REINSTALL. Split engine
control levers, then detach stop cable housing from from clutch housing as outlined in previous para-
brackets so that it will not catch when splitting. graph 56. Clutch pressure plate (1—Fig. 46) can be

Fig. 46—Engine dutch and input shaft removed from dutch housing. Parts shown are typicai of aii modeis.
1. Clutch pressure plate assy. 5. Release housing 9. Return spring 12. Snap ring
2. Clutch friction disc 6. Pins 10. Clutch release 13. Thrust washer
3. Release bearing 7. Release fork shaft & lever 14. Bearin^;
4. Spring clips (2 used) 8. Snap rings 11. Retainer & pilot 15. Input shaft

41
Paragraphs 58-61 MASSEY-FERGUSON

removed from fiywheel by removing screws which CLUTCH SHAFT AND RELEASE BEARING
attach plate to flywheel.
Check friction disc (2) for wear by measuring depth Models With Standard Transmission
of rivet head, which should be 0.3 mm (0.012 in.)
below friction surface. Clutch diaphragm release lev- 58. Clutch release bearing (3—Fig. 46), release fork
ers should not be less than 1.1 mm (0.043 in.) thick (7), release shaft (10), input shaft (15) and front
at the release bearing contact area. Pressure plate bearing (14) can be removed after separating the
and fiywheel should be fiat within 0.2 mm (0.008 in.). engine from the clutch housing as outlined in para-
graph 56. Remove two return springs (4) and with-
Use alignment tool to align and center the clutch draw release bearing and sleeve (5). Drive out
friction disc while attaching pressure plate to engine tapered pins (6) to remove release fork (7) and shaft
flywheel. Install clutch friction disc with longer hub (10). Be careful not to damage spring clips (4) when
toward rear. Tighten the six retaining screws to 29 installing.
N.m (21 ft.-lbs.) torque.

TRANSMISSION
1010 STANDARD
The main transmission of Standard 1010 tractors housing. Fluid and filter should be drained and re-
has three forward speeds and one reverse speed, and newed after initial 50 hours and at least every 200
the two-speed range transmission compounds the hours of operation thereafter. Recommended lubri-
total number of gear reductions to six forward and cant is "Massey-Ferguson Permatran III" or SAE
two reverse. 80W GL-3 or GL-4 oil.

INSPECTION REMOVE AND REINSTALL |

1010 Standard Models 1010 Standard Models
59. Removal of the main transmission shift cover 61. To remove the transmission assembly, first
with shift rails and forks from top of transmission lower three-point hitch and remove drawbar. Drain
housing will permit visual inspection of most trans- fluid from transmission, rear axle center housing,
mission components. Check to be sure that forks are rear axles and hydraulic system by removing drain
firmly attached to shift rails and check condition and plug from bottom center of rear axle center housing,
operation of detents in rails. Transmission, rear axle below drawbar attachment location. Disconnect
center housing (differential and final drive), rear ground cable from battery, unbolt and remove trans-
axles and hydraulic system share a common sump (oil mission cover, disconnect wires to warning lights and
supply). Check filters and drained fluid for evidence tail light, then thread wires forward and attach to
of metal particles. Refer to paragraph 60 for lubrica- side of clutch housing, out of the way. Disconnect,
tion requirements. then remove hydraulic pressure line between pump
and lift cover on tractor left side. Disconnect, then
LUBRICATION remove hydraulic pump suction line. Unbolt and re-
move footsteps from both sides and disconnect both
1010 standard Models brake rods at tumbuckles. Detach or remove front
drive shaft from four-wheel-drive models. Block lioth
60. Transmission, rear axle center housing (differ- front wheels to prevent rolling (1—Fig. 47), wedge
ential and final drive), rear axles and hydraulic sys- between front frame and axle to prevent tipping, and
tem share a common sump (oil supply). The drain support clutch housing securely (3) so that transmis-
plug is located at bottom rear of axle center housing sion can be safely separated and moved away. Sup-
below drawbar. Drawbar should be removed and port the front of transmission with a sling (4) or by
three-point hitch lowered before removing plug. other suitable method which will allow transmission
Capacity is approximately 17 L (18 quarts) and new and rear wheels assembly to be moved back away
filter should be installed each time fluid is changed. from clutch housing. Remove the eight stud nuts
The hydraulic system filter, which also filters trans- securing front of transmission to rear of clutch hous-
mission fluid, is located on left side of transmission ing, then roll the rear assembly back away from

42
 MODELS 1010 & 1020 Paragraph 62
remove differential shift rod (69). Remove cotter pins
from both sides of differential lock fork (70), then tap
differential lock shaft (72) rearward from housing.
Drive out roll pins (60) and remove pedal (59). Re-
move oil seal (61) and snap ring (62), then withdraw
differential lock shaft (64) and fork (70). Remove oil
seal (88) and snap ring (89), then pull front-drive
output shaft (95) and bearing (90) from housing bore.
Tip the transmission and rear axle center housing
assembly on front surface of transmission housing
and wind chain (92—Fig. 49) around drive pinion
shaft. Remove stud nuts securing axle center housing
to transmission housing, then lift axle housing off.
Dowel pins may hold the two housings together after
Fig, 47—Biock and support front of tractor securely when nuts are removed.
separating between dutch housing and transmission
housing. When assembling all models, reverse removal pro-
cedure. Always use new gaskets and seals. On four-
wheel-drive models, wrap chain around pinion shaft
clutch housing. Support rear axles and remove both before positioning axle center housing.
rear wheels. Unbolt and remove seat, both rear fend-
ers and hydraulic lift cover.
On two-wheel-drive models, support rear axle cen- OVERHAUL
ter housing and transmission independently, remove
attaching stud nuts, then separate transmission from 1010 Standard Models '
axle center housing.
On four-wheel-drive models, unbolt and withdraw 62. SHIFTER COVER. Remove cover plate (11—
pto output shaft. Unbolt and remove both rear axle Fig. 50), then unbolt and remove shifter cover (17).
assemblies from center housing as outlined in para- Inspect shift rails (18 and 21) and forks (19 and 22)
graph 142. Drive out tapered pin (66—Fig. 48) and for wear and damage. Remove detent plugs (12),

Fig. 48—Expioded view of differential iock controi iinkage and front-wheei drive components which must be removed prior
to separating transmission housing from axie center housing on four-wheei-drive models.
59. Differential lock pedal 66. Pin 73. Plug 92. Front drive chain
60. Roll pins 67. Internal lever 86. Coupling 93. Sprocket
61. Oil seal 68. Washer 87. Snap ring 94. Shift coupling
62. Snap ring 69. Link 88. Oil seal 95. Front-drive output shaft
63. *'O" ring 70. Lock fork 89. Snap ring 96. Ball bearing
64. Pedal shaft 71. Washer 90. Ball bearing 97. Snap ring
65. Snap ring 72. Pivot pin 91. Thrust washer 98. Rear axle center housing

43
Paragraph 63 MASSEY-FERGUSON

springs (14) and detent balls (15). Drive both roll pins 19) and snap rings (4 and 20). Protect mainshaft
(20) from one of the shift forks, then slide shift rail splines when installing front cover (1) to protect seal
from fork and shifter cover. Remove, but be careful (2). Tighten stud nuts retaining front cover (1) to
not to lose the two interlock balls (16). Other shift fork 15-19 N.m (11-14 ft.-lbs.) torque.
and rail can be removed after removing the double
roll pins. Unbolt and remove retainer (2), shift lever
(I) and related parts.
Check all parts for scratches, wear, distortion and
evidence of overheating. All parts must move
smoothly with minimum of lost motion. Minimum
width of shift fork fingers should be 4.0 mm (0.156 24
in.).
Reassemble in reverse of disassembly procedure.
Make sure that the two interlock balls (16) are cor-
rectly located between shift rails. Be sure that double
roll pins are installed in each shift fork. Tighten
detent plugs (12) to 30-34 N.m (22-25 ft.-lbs.) torque.
Make sure that transmission gears and shifter
forks are both in neutral and install shifter cover
assembly. Apply "Loctite 592" or equivalent to
threads of shift cover retaining screws and tighten to
20-24 N.m (15-18 ft.-lbs.) torque.

63. COUNTER (TOP) SHAFT. To remove the top

shaft, first remove transmission as outlined in para-
graph 61, then unbolt and remove the shifter cover.
Unbolt and remove the front cover (1—Fig. 51) and
remove snap rings (4 and 20) and washers (5 and 19)
from ends of top shaft. Push shaft toward rear and
remove bearings (6 and 18). Push shaft forward, then
raise rear end of shaft (with gears) out top opening
and lift shaft and gears from housing. Parts (8
through 17) can be removed from shaft as required.
Bushing (13) is renewable and is a press fit in first
gear (12). Select thrust washer (11) of sufficient thick-
ness to limit clearance between snap rings (10 and
17) to 0.1-0.3 mm (0.004-0.012 in.). Washers are avail-
able in thicknesses of 2.3, 2.6 and 2.9 mm (0.090,
0.102 and 0.114 in.). Assemble parts (8 through 17)
on shaft (7) before inserting into transmission hous-
ing, then install bearings (6 and 18), washers (5 and 38

, 50—Exploded view of shift cover, ralis and forks.

1. Lever & knob 20. Double roll pins
2. Seal plate 21. Shift rail {1st & Reverse)
3. Pin 22. Shift fork (1st & Reverse)
4. Bushing 23. Oil level dipstick
5. Retainer 24. Oil filler plug
6. Gasket 25. Range (Hi-Low) shift lever
7. Spring 26. "0" rings
8. Spring support 27. Shaft & internal range lever
9. Cotter pin 28. Range shift fork
10. Guide plate 29. Detent ball & spring
11. Cover plate 30. Range shift rail
12. Detent plugs (2 used) 31. Retainer
13. Gaskets (2 used) 32. Pto lever
14. Detent springs (2 used) 33. Shaft & internal pto lev*;r
15. Detent balls (2 used) 34. Detent ball & spring
16. Interlock balls (2 used) 35. Pto shift fork
Fig, 49—Front drive chain (92) must be wrapped around 17. Shift cover 36. Shift rail retaining screw
pinion shaft as shown when separating and joining rear 18. Shift rail (2nd & 3rd) 37. Shift rail
axie center housing and transmission housing. 19. Shift fork {2nd & 3rd) 38. "0" ring

44
MODELS 1010 & 1020 Paragraphs 64-65

Fig. 51—Exploded view of counter (top)

shaft and gears.
1. Front cover
2. Seal 11. Adjusting washer
3. Gasket 12. Gear {1st)
4. Snap ring 13. Bushing
5. Thrust washer 14. Spacer
{20 X 30 X 2 mm) 15. Inner ring
6. Front bearing 16. High range gear
7. Top shaft 17. Snap ring
8. Gear (2nd & 3rd) 18. Rear bearing
9. Reverse gear 19. Thrust washer
10. Snap ring 20. Snap ring

64. MAINSHAFT. To remove the mainshaft, first that mainshaft correctly enters bearing when install-
remove transmission as outlined in paragraph 61, ing. Protect mainshaft splines when installing front
then unbolt and remove the shifter cover. Unbolt and cover (1—Fig. 52) to protect seal (2). Tighten stud
remove the front cover (1—Fig. 51) and top shaft as nuts retaining front cover (1) to 15-19 N.m (11-14
outlined in paragraph 63. Mainshaft (25—Fig. 52) ft.-lbs.) torque.
can be withdrawn from front. Third gear (24) is
pressed onto mainshaft of early models, but service
gear and shaft are available only as an assembly. 65. REVERSE IDLER. To remove the reverse
Reassemble by reversing removal procedure. Make idler shaft and gear, first remove transmission as
sure that roller bearing remains in pinion shaft and outlined in paragraph 61 and top shaft as outlined in

Fig. 52—Expioded view of Modei 1010

Standard transmission front cover and
mainshaft. Third gear (24) is pressed onto
mainshaft of early models.
22. Thrust washer
1. Front cover (30 x 42 x 2 mm)
2. Seal 23. Bearing
3. Gasket 24. Gear
21. Snap ring 25. Mainshaft
Paragraphs 66-67 MASSEY-FERGUSON

Fig. 54~~View of snap ring (36) which must be removed

before attempting to remove the drive pinion shaft.

move transmission as outlined in paragraph 61 and

top shaft as outlined in paragraph 63. Unbolt and
remove retaining plate (31), then withdraw shaft (30)
from fork (28) and housing bore. Be careful to catch
detent ball and spring (29) as shaft is with-
drawn. Outside lever (25), internal lever (27) and "<]>"
Fig. 53—Expioded view of reverse idler assembly.
rings (26) can be removed if service is required.
27. Lock screw 32. Collars (2 used)
28. Sealing washer 33. Adjusting washer When assembling, use a socket to hold detent (29)
29. Reverse idler shaft (25 x 34 mm) while inserting shaft (30). Turn shaft to align slot so
30. "O" ring 34. Roller bearing that retaining plate (31) can be installed. Tighten the
31. Roll pins (2 used) 35. Reverse idler gear
two screws attaching retaining plate (31) to housing
to 20-24 N.m (15-18 ft.-lbs.) torque. Remainder of
paragraph 63. Remove lock screw (27—Fig. 53) and assembly is reverse of removal procedure.
rotate shaft (29) so that roll pins (31) are vertical. Do
not attempt to remove roll pins unless shaft is 67. DRIVE PINION SHAFT. To remove the dri v^e
rotated so that they can be driven straight pinion shaft, first remove the mainshaft as outlined
down. Bump shaft (29) out toward front and with- in paragraph 64 and the range shift fork as outlined
draw collars (32), washer (33), bearing (34) and gear in paragraph 66. Remove snap ring (36—Fig. 54) and
(35) through top opening. thrust washer (37—Fig. 55). Remove five screws at-
Assemble parts (31 through 35) on shaft (29) out- taching bearing housing (52) to transmission hous-
side of transmission housing and measure clearance ing, then withdraw shaft (56) and related parts. Be
between thrust washer (33) and side of gear (35). careful not to damage or lose shims (51). Bearing
Clearance should be 0.1-0.3 mm (0.004-0.012 in.) with (49) can be removed from drive pinion shaft after
both collars (32) and roll pins (31) installed. Washers removing nut (47). Suggested method of holding shrift
are available in thicknesses of 3.0, 3.2 and 3.5 mm (56) while removing or installing nut (47) is by install-
(0.118, 0.126 and 0.138 in.). Select washer (33) of ing key and clamping range hub (41) in a soft jawed
thickness that will provide clearance within limits, vise. Do not clamp the shaft (56) in vise. Four-
remove roll pins and separate parts (31 through 35) wheel-drive sprocket (53) is a press fit on the shaft
from shaft. Install "O" ring (30) in groove of shaft and and should not be removed unless renewal is neces-
begin to insert shaft (29) into transmission housing sary.
with chamfered end of holes for roll pins up. Slip one Determine correct thickness of adjusting washer
collar (32), selected thrust washer (33), bearing (34), (50) by measuring height of bearing inner race as
gear (35) and remaining collar (32) on shaft as it is shown in Fig. 56, then select appropriate thickness
being inserted into transmission housing. Drive roll washer to increase distance to 23 mm (0.905 in.). An
pins (31) through collars (32) and shaft (29) with split example would be if the measured distance is 22.45
of pin either toward front or rear. Rotate and position mm (0.884 in.), select washer (50—Fig. 55) 0.55 mm
assembled shaft, then install and tighten lock screw (0.022 in.) thick.
(27) to 15-19 N.m (11-14 ft.-lbs.) torque. Remainder Press bearing (49) into bearing housing (52) until
of assembly is reverse of removal procedure. seated, then measure distance between transmission
housing and bearing housing with a feeler gauge as
66. RANGE SHIFT. To remove the range shift fork shown in Fig. 57. Add shims (51—Fig. 55) as required
and related parts (25 through 31—Fig. 50), first re- to reduce clearance to 0-0.04 mm (0-0.0015 in.).

46
MODELS 1010 & 1020 Paragraph 67 (Cont.)

Fig, 55—Exploded view of drive pinion

shaft and reiated parts of 1010 Standard
transmission.
26. Mainshaft pilot 47. Nut
bearing 48. Lock washer
36. Snap ring 49. Pinion bearing
37. Thrust washer 50. Adjusting washer
(30 X 42 X 2 mm) (35 X 50 mm)
38. Bearing 51. Shims
39. Bushing 52. Bearing housing
40. Range (Hi) gear 53. Four-wheel-
41. Range hub drive sprocket
42. Range shift collar 54. Spacer (two-wheel
43. Range (Low) gear drive)
44. Bushing 55. Drive key
45. Spacer 56. Bevel pinion shaft
46. Thrust washer 57. Ring gear

F/g. 55—To determine correct thickness of washer (50— Fig. 57—To determine thickness of shims (51—Fig. 55),
Fig. 55), measure height of bearing from rear surface of measure distance from bearing housing to transmission
housing to inner race as shown. housing with a feeier gauge as shown.

Assemble all parts between snap ring (36—Fig. 55) (36-51 ft.-lbs.) torque. Bend one of the tangs of washer
and thrust washer (46) on shaft, then measure clear- (48) into nut to lock position of nut.
ance between thrust washer (37) and inner race of I
bearing (38) with feeler gauge. Vary thickness of
thrust washer (37) as required to reduce clearance to Insert the partially assembled pinion shaft (56),
0.1-0.3 mm (0.004-0.012 in.). Be sure to install se- four-wheel-drive pinion (53) or spacer (54) and parts
lected thrust washer (37) when assembling in trans- (47, 48, 49, 50 and 52) into housing and install parts
mission housing. (36 through 46). Make sure to install drive key (55)
before installing hub (41) and use the selected thrust
Disassemble parts (36 through 46) from shaft and washer (37). Install shims (51) that were previously
assemble selected washer (50), bearing (49) and bear- selected and tighten screws retaining bearing hous-
ing housing (52) on pinion shaft. Install tab washer ing and shims to transmission housing to 30-39 N.m
(48) and clean threads of nut (47) and shaft (56). Coat (22-29 ft.-lbs.) torque. Be sure to install bearing (26)
threads of shaft lightly with "Loctite 609" or equiva- before installing mainshaft. Remainder of assembly
lent, then install and tighten nut (47) to 49-69 N.m is reverse of disassembly.

47
Paragraph 67 (Cont.) MASSEY-FERGUSON

Fig. 58—Expioded view of pto drive shaft iocated in the 66

transmission housing. 65
57. Snap ring 66. Drive gear 64
58. Thrust washer 67. Roller bearing
59. Ball bearing 68. Inner race 63
60. Pto drive shaft 69. Thrust washer 62
61. Snap ring 70. Ball bearing
62. Overrunning clutch 71. Thrust washer
63. Shift collar (variable thickness)
64. Hub 72. Snap ring
65. Thrust washer 73. Ball bearing

Fig. 59—Cross section of transmission

for 1010 Standard models. Refer to Fig.
51 Fig. 52, Fig. 53, Fig. 55 and Fig. 58 for
expioded views of individual shafts and
gears.
A. Counter (top) shaft
B. Mainshaft D. Drive pinion shaft
C. Reverse idler shaft E. Pto drive shaf:

48
MODELS 1010 & 1020 Paragraphs 68-69
68. PTO DRIVE SHAFT. To remove the pto drive Overrunning clutch (62) should turn smoothly in
shaft, first remove transmission as outlined in para- one direction and lock positively in the other direc-
graph 61 and remove the transmission top cover as tion. Clutch cannot be disassembled and new unit
described in paragraph 62. Remove counter (top) should be installed if damaged.
shaft, mainshaft, reverse idler assembly, range shift To determine correct thickness of thrust washer
fork and drive pinion shaft as outlined in paragraphs (71), assemble parts (62 through 71) between snap
63, 64, 65, 66 and 67. ring (61) and snap ring (72) onto shaft (60) before
Drive roll pin from shift lever (32—Fig. 50), then installing in transmission housing. Use feeler gauge
remove lever. Remove lock screw (36), push shift rail to measure clearance between thrust washer (71) and
(37) forward and remove shift fork (35). Be careful inner race of bearing (70). Correct clearance is 0.1-0.3
not to lose detent spring and ball (34) as shaft mm (0.004-0.012 in.). Install thrust washer of correct
is withdrawn. Internal shift lever and shaft (33) thickness and recheck clearance. When thrust
with "O" rings can be removed. washer of correct thickness has been selected, remove
Dislodge snap ring (72—Fig. 58) from behind mid- parts from shaft and reassemble in transmission
dle bearing and gradually move the shaft (60) toward housing. Refer to Fig. 59 for cross section of installed
front. Remove rear bearing (73), snap ring (72) and pto shaft.
thrust washer (71). Remove center bearing (70) and Install pto shift assembly by reversing removal
thrust washer (69). Remove gear (66), bearing (67), procedure. Be careful that detent ball and spring
inner race (68) and thrust washer (65). Remove hub (34—Fig. 50) are not lost when installing rail into
(64) and shift collar (63). Remove overrunning clutch fork. Tighten lock screw (36) to 15-19 N.m (11-14
(62) and finish withdrawing shaft. ft.-lbs.) torque.

TRANSMISSION
1010 HYDRO
The hydrostatic transmission consists of a variable housing, rear axle center housing and the rear axle
displacement piston type hydraulic pump and a fixed housings.
displacement piston type hydraulic motor located
just behind the clutch housing. The hydrostatic pump Fluid and filters should be changed after the first
is connected directly to the engine clutch disc by the 50 hours of operation and every 200 hours of opera-
input shaft. The Kayaba HVFD-16C4 hydrostatic tion thereafter. Lower the three-point hitch and re-
unit has two output shafts. The upper shaft provides move drain plugs. One drain plug is located at rear
drive from the engine clutch to pto front counter shaft center of the axle center housing and a second drain
which is located in transmission housing. The lower plug is located at bottom front of axle center housing.
shaft is hydrostatic motor output shaft which drives If equipped with mid pto, a third drain plug is located
the high-low range transmission gears located in the on right side of mid pto housing. All three filters
rear axle center housing. should be changed (A, D and F—Fig. 60) at the same
The hydrostatic drive provides forward speeds and time. The two filters located on left side of center
reverse speeds in two speed ranges. Ground speeds housing are suction filters and are different from the
in low range are infinitely variable from about 4.3 kph high pressure filter located on right side. Clean filter
(2.7 mph) in reverse to 5.2 kph (3.25 mph) forward. adapters and lubricate filter seal with clean oil before
Ground speeds in high range are infinitely variable installing new filters. Tighten filters by hand, do not
from about 11.8 kph (7.3 mph) in reverse to 14.0 kph use filter removal wrench to install. Fill reservoir
(8.75 mph) forward. with "Massey-Ferguson Permatran III" or equivalent
fluid, then start engine. Allow engine to run at idle
while operating hydraulic controls and raising and
LUBRICATION lowering lift arms. Stop engine, lower three-point
hitch and check fluid level. Tractor should be on level
1010 Hydro Models surface when checking fluid level. Dipstick and fill
plug are located just in front of seat. Capacity is
69. The hydrostatic unit utilizes fluid contained in approximately 17 L (18 quarts), but some oil may
a common reservoir consisting of the transmission remain in system when draining. Control linkage

49
Paragraphs 70-71 MASSEY-FERGUSON

P/g, 60—Schematic of oil flow for 1010 Hydro

models. Charge pump, pressure pump and
motor for hydrostatic system are all contained
in unit (E).
A. Lift system suction filter F, Hydrostatic
B. Lift system pump pressure filtei
C. Hydraulic lift cover G. Case relief valve
D. Hydrostatic suction filter H. Oil cooler
E. Hydrostatic unit

should be lubricated with lithium base multipurpose

grease.

TROUBLESHOOTING

1010 Hydro Models

70. The following are symptoms which may occur
during operation and possible causes related to the
hydrostatic transmission.
1. Tractor will not move or operates erratically.
a. Transmission oil level low.
b. Control linkage improperly adjusted or dam-
aged.
c. Charge pump damaged.
d. Engine clutch or transmission input shaft fail-
ure.
e. Neutral valve stuck open.
2. Tractor moves, but lacks power.
a. High pressure relief valve opening pressure set
too low.
b. Internal leakage of high pressure oil.
3. Abnormal noise when operating.
a. Suction filter plugged. Fig. 61—Install test gauge as shown at (A) to check charge
b. Air leak on suction side of charge pump. pressure.
c. Charge pump or relief valve faulty.
4. Tractor fails to stop in neutral.
a. Control linkage out of adjustment. ply parking brake, block wheels and disengage front-
b. Neutral valve stuck or damaged. wheel drive (if so equipped). Make sure fluid is at
5. Oil overheating. proper level and install test gauge as shown at (A—
a. Tractor overloaded. Fig. 61). Start and run engine until fluid reaches
b. Oil cooler plugged. operating temperature, then set engine to run at 2500
c. Internal leakage of high pressure oil. rpm and observe gauge pressure. Correct pressure; is
421-559 kPa (61-81 psi). Operation should be discon-
tinued if pressure is less than 392 kPa (57 psi).
TESTS AND ADJUSTMENTS

1010 Hydro Models Low charge pressure may be caused by plugged oil
filter, faulty charge pressure relief valve or worn or
71. CHARGE PRESSURE. Remove cover from damaged charge pump. Low charge pressure can also
transmission housing and clean area thoroughly. Ap- be the result of worn or damaged components in i,he

50
MODELS 1010 & 1020 Paragraphs 72-73
Move shift control pedal in opposite direction until
trunnion shaft rotates 8° to 9"" from neutral and check
pressure in opposite direction. Gauge (F—Fig. 62) is
for checking forward pressure and gauge (R) is for
checking pressure in reverse. Correct pressure is
23,995-25,960 kPa (3480-3765 psi).
If pressure is low in both directions, possible cause
is a faulty high pressure relief valve or a worn or
damaged hydrostatic unit. High pressure relief valve
is adjustable. If pressure is low in only one direction
(either forward or reverse), possible cause is a faulty
check valve and neutral valve.
1
73. CASE RELIEF PRESSURE. Remove cover
from transmission housing and clean area thor-
oughly. Apply parking brake, block wheels and disen-
gage front-wheel drive (if so equipped). Make sure
fluid is at proper level and install test gauge as shown
at (B—Fig. 63). Start and run engine until fluid
reaches operating temperature, then set engine to
run at 2500 rpm and observe gauge pressure. Correct
pressure is 196-226 kPa (28.5-32.7 psi). Operation
should be discontinued if pressure is more than 245
kPa (35.6 psi).

Fig. 62—Install test gauges as shown at (F and R) for

checking high reiief pressure. Gauge at (F) checks for-
ward pressure and gauge at (R) checks pressure in re-
verse.

hydrostatic drive unit allowing excessive fluid loss

from the pump and motor closed loop circuit.

72. HIGH RELIEF PRESSURE. Remove cover

from transmission housing and clean area thor-
oughly. Apply parking brake, block wheels and disen-
gage front-wheel drive (if so equipped).

CAUTION: Tractor must be securely blocked,

high range selected and brakes securely set when
making this test. Even so, tractor may attempt to
move. Be extremely careful.

Make sure fluid is at proper level and install test

gauges as shown at (F and R—Fig. 62). Start and run
engine until fluid reaches operating temperature,
then shift range lever to HIGH range. Run engine at
2500 rpm, depress control pedal until trunnion shaft
rotates 8° to 9°, observe gauge pressure, then let
pedal return to neutral.

NOTE: Do not check relief pressure for more than

ten seconds, or overheating and damage may oc- Fig. 63—Instali gauge as shown at (B) to check case relief
cur. pressure.

51
Paragraphs 74-75 MASSEY-FERGUSON
line as shown at (C—Fig. 64). Start and run engine
until fluid reaches normal operating temperature,
then set engine to run at 2500 rpm and observe gauge
vacuum reading. Correct vacuum with oil tempeia-
ture at 25° C (77° F) is 150 mm (5.9 in.) of Mercury
(Hg). With oil temperature at 50° C (122° F), corn ct
vacuum is 80 mm (3.1 in.) of Hg. Operation should be
discontinued if vacuum exceeds 220 mm (8.7 in.) of
Hg.
Check for a restriction in the oil inlet circuit (such
as a plugged filter) if pump vacuum is higher than
normal.

75. CONTROL LINKAGE ADJUSTMENT.

Raise and block rear axle so the wheels are off ground
and disengage front-wheel drive (if so equipped). Un-
bolt and remove linkage cover from right side of
transmission, then operate hand lever and foot pedal,
while checking linkage for freedom of movement.
Linkage should operate smoothly and return to neu-
tral. Lubricate fittings on shafts (1 and 2—Fig. 65)
with lithium based multipurpose grease. Lubricate
cam plate pivot (3), cam and pin (4) with molybdenum
Fig. 64—instaii gauge as shown at (C) to check pump disulfide grease. Lubricate surfaces of neutral adjust-
vacuum. ing lever and trunnion lever bearings (5) with mol} b-
denum disulfide grease.
Adjust exposed length (A) of spring eye to 15 mm
Check for faulty case pressure relief valve or (0.59 in.) and length (B) of main control rod to 67 mm
plugged oil cooler if case pressure is excessive. High (2.64 in.). Check to be sure that hand lever is at rear
case pressure may also be the result of high pressure (neutral) position, that raised tip of cam is centered
oil leaks from pump or motor. on pin (4) and that pin is in 10 o'clock position. If
necessary, adjust hand lever linkage to establish cor-
74. PUMP VACUUM. Remove cover from trans- rect position of pin and cam point.
mission housing and clean area thoroughly. Apply Start engine and operate at low idle speed. Move
parking brake, block wheels and disengage front- range shifter to LOW range position and opemte
wheel drive (if so equipped). Make sure fluid is at ground speed control pedal several times through
proper level. Install test (vacuum) gauge in suction forward, neutral and reverse positions. Move the

Fig. 65—Drawing of ground speed con-

troi iinkage showing lubrication and ad-
justment points.
1. Neutral lever pivot 5. Trunnion levei &
2. Pedal pivot neutral adjusting
3. Hand lever lever
cam pivot 6. Neutral adjusting
4. Cam surface & pin screw & locknut

52
MODELS 1010 & 1020 Paragraph 76

Fig. 66—Exploded view of ground speed controi iinkage.

6. Neutral adjusting 11. Back plate 17. Trunnion lever
screw & locknut 12. Hand lever cam 18. Clamp screw 23. Bracket
7. Pedal 13. Snap ring 19. Dampener 24. Nut
8. Snap ring 14. Main control rod 20. Neutral adjusting lever 25. Nut
9. Washer 15. Ball bearing roller 21. Neutral lever 26. Spring adjuster
10. Pedal pivot hub 16. Ball bearing roller 22. Snap ring 27. Spring

hand control lever from neutral to forward and back Disconnect battery ground cable from negative ter-
several times and make sure that both hand and foot minal of battery and remove foot steps from both
controls return to neutral. In neutral, rear wheels sides. Unplug wiring connectors for warning flashers
should not creep either forward or reverse. Any move- and tail lights, then thread wires through clips for-
ment of wheels indicates incorrect neutral adjust- ward to the clutch housing. Lower three-point lift
ment. arms and drain transmission and center housings.
To adjust, first loosen locknut (6—Fig. 65) on ad- Disconnect hydraulic lift pressure line from engine
justing screw. Turn adjusting screw in until wheels mounted pump to lift arms, so that tractor can be
just start to turn forward, then turn screw out until separated. Disconnect hydraulic line from right side
wheels just start to rotate rearward. Carefully estab- of oil cooler and from relief valve body (A—Fig. 67).
lish both points (forward and reverse) at which Disconnect hydraulic line from left side of oil cooler
wheels just start to turn, then turn screw to the mid and from hose connector of suction line (B—Fig. 68).
point and tighten locknut. Refer to Fig. 66 for ex- Be sure to cover all hydraulic openings imme-
ploded view of ground speed control linkage. diately after disconnecting to prevent the en-
trance of dirt. Loosen brake rod locknuts and
separate brake rods at turnbuckles (C—Fig. 69) lo-
HYDROSTATIC UNIT cated on both sides. Unbolt damper at rear (D—Fig.
70) and remove pin (E) attaching control rod to cam
1010 Hydro Models plate. Remove the three screws attaching drive shaft
cover of four-wheel-drive models to transmission
76. REMOVE AND REINSTALL. To remove the housing. Wedge between front axle and front support
hydrostatic unit, split tractor between the clutch frame to keep front from tipping and block both front
housing and the hydrostatic housing as follows. wheels to prevent rolling. Attach support brackets

53
Paragraph 77 MASSEY-FERGUSON

Fig. 67^Hydraulic line from right side of oil cooler is

attached to reiief valve body as shown at (A).

Fig. 70—Ground speed controi damper is attached at (D)

and pin (E) attaches controi rod to cam piate.

Fig. 68—Hydraulic line from left side of oil cooler is con-

nected to suction line by hose (B).
Fig. 71—Screw (F) attaches oil feed block to top of hydro-
static unit. Drain tube is shown at (G) and hose connect-
ing front and rear sections of suction tube at (H).

and stands to sides of clutch housing or otherwise

support clutch housing and engine. Support hydro-
static housing with a sling so that rear of tractor can
be moved back, then remove the eight nuts and wash-
ers attaching hydrostatic housing to the clutch hous-
ing. Carefully roll the rear of tractor back away from
clutch housing.

77. Proceed as follows after tractor is separated.

Remove screw (F—Fig. 71) and detach oil feed block
from hydrostatic unit. Disconnect drain tube (G) and
separate front and rear suction tubes at hose connec-
tor (H). Disconnect ground speed control linkage (Fig.
72) and remove the control back plate. Remove the
Fig. 69—A brake turnbuckie (C) is iocated on each side. eight screws (J—Fig. 73) that attach hydrostatic

54
MODELS 1010 & 1020 Paragraph 78
housing, then lift housing from tractor. Remove the
six stud nuts and washers (K—Fig. 74), then lift
hydrostatic unit from tractor.
Reassemble by reversing removal procedure. Ad-
just brakes and speed control linkage when assem-
bling. Install new filters and refill system reservoir
with "Massey-Ferguson Permatran III" or equivalent
fluid, then start engine. Allow engine to run at idle
while operating hydraulic controls and raising and
lowering lift arms. Stop engine, lower three-point
hitch and check fluid level. Tractor should be on level
surface when checking fluid level. Capacity is ap-
proximately 17 L (18 quarts), but some oil may re-
main in system. Control linkage should be lubricated
Fig. 72—Ground speed controi linkage must be detached
to remove the hydrostatic unit.
with lithium base multipurpose grease.

OVERHAUL

1010 Hydro Models

78. Before disassembling, plug openings and clean
the exterior of the hydrostatic unit. To disassemble,
remove the eight socket head screws retaining port
block (37—Fig. 75) to hydrostatic case (16), then
carefully separate block from case. Be extremely
careful not to drop or otherwise damage the
valve plates (25 and 31). Hold output shaft (18) and
bump case (16) gently to unseat motor assembly, then
lift the motor cylinder block assembly (26 through 31)
and output shaft (18) from case.
Unseat snap ring (23) from groove at base of pump
cylinder block as shown in Fig. 76, then remove pump
cylinder block assembly (21, 22 and 24—Fig. 75). Use
a hooked tool (T—Fig. 77) to pull thrust plate (20—
Fig. 75) from swashplate (19).
Fig. 73—Eight screws and nuts (J) attach hydrostatic Unbolt and remove charge pump assembly (3), then
housing. bump input shaft (10) and bearing (9) from case.
Scribe reference marks on swashplate covers (11) to
identify their original locations and original posi-
tions, then tap end of swashplate trunnion shaft (19)
with a soft hammer to remove covers from case.
Carefully remove valve port plates (25 and 31) from
recesses in port block (37). Remove neutral valves
(32) and feed valves (35) from port block. Count the
number of turns required to remove the high pressure
relief valve (36) from block, so that adjusting screw
can be installed at original setting.
Clearance between shoe and socket of piston (21 or
27) should be 0.03 mm (0.0012 in.), but should not
exceed 0.20 mm (0.008 in.). Clearance between piston
(21 or 27) and relative bore in cylinder (24 or 30)
should be 0.02 mm (0.0008 in.), but should not exceed
0.04 mm (0.0016 in.). Thickness of piston shoe should
be 3.0 mm (0.118 in.), but should not be less than 2.9
mm (0.114 in.). End clearance of charge pump rotor
set in bore of housing (3) should be 0.030-0.045 mm
(0.0012-0.0018 in.), but should not exceed 0.055 mm
Fig. 74—Six stud nuts (K) attach hydrostatic unit. (0.0021 in.). Check all parts for visible signs of wear

55
Paragraph 78 (Cont.) MASSEY-FERGUSON

Fig. 75—Exploded view of hydrostatic drive unit used on 1010 Hydro modeis.
1. Snap ring
2. Oil seal
3. Charge pump housing
12.
13.
14.
"0" rings
Bushings
Oil seal
23.
24.
25.
Snap ring
Pump cylinder block assy.
Valve port plate
34. Springs
35. Feed valve poppet
36. High pressure
i
4. F'ump rotors 15. Charge pump relief valve 26. Motor swashplate relief valve
5. "0" rings 16. Hydrostatic case 27. Motor pistons 37. Port block
6. Wear plate 17. Bearing 28. Retainer plate 38. Bearings
7. Spacer 18. Output shaft 29. Spacer 39. Oil seals
8. Snap ring 19. Pump swashplate 30. Motor cylinder block assy. 40. Retainer
9. Bearing 20. Thrust plate 31. Valve port plate 41. Lock cap
10. Input shaa 21. Pump pistons 32. Neutral/check valves 42. Pressure test port pi igs
11. C!overs 22. Retainer plate 33. "0" rings 43. Gasket

or scoring and renew any that are cracked or other-

wise questionable.
Clean all parts and housings thoroughly, then coat
with new transmission oil before assembling. Coat
"O" rings and seals with grease to provide initial
lubrication and to hold parts in place while assem-
bling.
Reassemble by reversing disassembly procedure.
Tighten the six screws retaining covers (11) to 3.5-4.3
N.m (31-37 in.-lbs.) torque. Tighten screws retaining
pump housing (3) to case (16) to 16-19 N.m (12-14
ft.-lbs.) torque. Measure protrusion of bearing (17)
from end of motor swashplate (26) to confirm that
bearing is installed correctly. Correct bearing protru-
sion should be 9.0-9.3 mm (0.354-0.366 in.). Measure
distance from face of case (16) to face of both pump
and motor cylinders (24 and 30). Check for possible
interference if depth to cylinders is not about 3 mm
(0.118 in.). Tighten screws retaining covers (40) to Fig. 76—Remove snap ring (23) as shown.

56
MODELS 1010 & 1020 Paragraphs 79-82

7 mm
4 mm
I
100 mm

Fig. 77—A hooked tooi (T) can be made to dimensions

shown and used to puii thrust piate (20) from swashpiate.
Fig. 78—Spacer housing contains drive gear (4), hub (3)
3.5-4.3 N.m (31-37 in.-lbs.) torque. Tighten plugs (42) and bearings (2 and 5). Plug (8) is installed on two-wheel-
drive models instead of seai (6).
to 49-58 N.m (36-43 ft.-lbs.) torque and neutral/check
valves (32) to 35-39 N.m (26-28 ft.-lbs.) torque. Install
high pressure relief valve (36) to original position, if RANGE TRANSMISSION
removed. Install lock cap (41) to maintain position of
adjusting screw. Tighten cap (41) to 20-27 N.m (15-20
ft.-lbs.) torque. Apply grease to surfaces of port block 1010 Hydro Models
(37) and valve port plates (25 and 31), then install
plates in recesses of port block, aligning notches over 80. The two-speed range transmission provides a
dowel pins. Install port block and tighten retaining choice of two gear selections. The range transmission
screws to 34-39 N.m (25-28 ft.-lbs.) torque. is located in front compartment of the rear axle center
housing and the sliding gear is located on the bevel
drive pinion shaft. Drive from the hydrostatic unit
lower shaft turns hub and gear (4—Fig. 79), which
SPACER HOUSING ASSEMBLY then turns upper gear (12). Upper gear is splined to
upper (top) shaft (15) and low or high range gear is
1010 Hydro Models selected by moving gear (28) to mesh with one of the
two gears of upper shaft. The pto drive shaft runs
79. REMOVE AND REINSTALL. The spacer through center of upper shaft as shown.
housing assembly is located between the hydrostatic
housing and the rear axle center housing. The spacer 81. COUNTER (TOP) SHAFT AND GEARS. To
housing requires little service, but removal is re- remove the counter shaft, first refer to paragraph 76,
quired for other operations. To remove the spacer paragraph 77 and paragraph 79 and remove the
housing, proceed as follows. hydrostatic housing, hydrostatic unit and spacer
housing. Refer to paragraph 149 and remove the pto
Refer to paragraph 76 and paragraph 77 and re- top shaft. Unbolt and remove the safety switch and
move the hydrostatic housing and hydrostatic unit. bracket from housing, then withdraw counter shaft
Remove the transmission dipstick, then remove the and bearing from opening in front of housing.
ten stud nuts and lockwashers retaining the spacer Bearings (11 and 16—Fig. 80), gear (12) or bushing
housing to the rear axle center housing. Support the (14) can be renewed if required. When reinstalling,
spacer housing and slide it from the top shaft bearing reverse removal procedure. .
and studs.
82. RANGE SHIFT FORK AND LINKAGE.
Drive gear (4—Fig. 78), hub (3) and bearings (2 and First remove the counter shaft as outlined in para-
5) can be removed after removing snap ring (1). graph 81. Make sure that safety switch (1—Fig. 81)

57
Paragraph 82 (Cont.) MASSEY-FERGUSON

Fig. 79—Cross section of rear

axle center housing showing
range transmission, front-wheei-
drive coupiing, rear pto and mid
pto. Refer to Fig. 78, Fig. 80 and
Fig. 82 for iegend.

i
51

Fig. 80—Expioded view of rear axle center

housing, range transmission and related
parts for 1010 Hydro models.
9. Coupling
10. Roll pins 30. Roller bearing
11. Bearing 31. Bevel pinion shaft
12. Gear (46 teeth) 32. Shims
13. Snap ring 33. Carrier bearing
14. Bushings 34. Ring gear
15. Counter shaft 35. Roll pin
16. Bearing 36. Differential carrier
17. Snap ring 37. Side gear
18. Nut hearing (2 used)
19. Tab washer 38. Carrier bearing
20. Retainer 39. Shim
21. Double row 40. Thrust washer
hall hearing 41. Shaft
22. Shims 42. Pinion
23. Bearing housing 43. Thrust washer
24. Shims 44. Thrust washer
25. Front-wheel- 45. Side gear {2 used)
drive gear 46. Pto shaft
26. Spacer (Two-wheel 47. Snap ring
drive) 48. Washer
27. Huh 49. Spring
28. Sliding gear 50. Coupling
29. Collar 51. Snap ring

58
MODELS 1010 & 1020 Paragraphs 83-85
and bracket (2) are removed from housing. Drive roll NOTE: Shims (22 and 24) are alike, but at location
pin (3) from control lever, then remove the lever (4) (22) shims adjust bearing retention and at location
from shaft (6). Remove lock screw (11), detent plug (24) adjust bevel pinion location. i
(7), spring (8) and ball (9). Pull shaft (12) forward and
withdraw fork (10). Do not lose detent ball (9) Push the bevel pinion shaft (31) to rear and remove
inside transmission. Shaft (6) with "O" rings (5) can gear (25) or spacer (26). Continue to push bevel pinion
be removed and new "O" rings installed. shaft to rear and remove sliding gear (28) and hub
Assembly is reverse of disassembly procedure. (27) out through top and bevel pinion shaft out
through rear. Collar (29) and bearing (30) can be
83. SLIDING GEAR, HUB AND BEVEL PIN- pressed from shaft if renewal is required.
ION. To remove the bevel pinion (31—Fig. 80), sliding Shims (24) are used to locate bearing (21) and bevel
gear (28) and related parts, first remove range pinion shaft. Original factory selection of shims can
counter shaft as outlined in paragraph 81 and range be considered correct unless bearing (21) or bevel
shift fork as outlined in paragraph 82. Refer to para- pinion shaft (31) and ring gear are renewed. It is,
graph 132 and remove the differential assembly, then however, important not to mix shims (22 and 24). If
move the bevel pinion to the rear and temporarily correct thickness of shims at location (24) is not
reinstall screws attaching retainer (20) and bearing known, refer to paragraph 135 for adjusting mesh
housing (23). Straighten tab of lockwasher (19), then position. Refer to paragraphs 133 and 134 for install-
remove tab washer and nut (18). Remove retainer ing new bevel ring gear.
(20), shims (22), housing (23) and shims (24), being Reverse removal procedure when assembling.
careful not to mix shims. Tighten nut (18) to 59 N.m (44 ft.-lbs.) torque, then
bend a tab into slot of nut to lock position. Refer to
paragraph 134 and install differential assembly.
Be sure to use shims (24) that have been selected
to correctly locate the bevel pinion. Thickness of
shims (22) should he selected to hold bearing (21)
between retainer (20) and bearing housing (23) with-
out any end play or crush. Shims (22) are the same
as shims (24), but shims (24) adjust (change) location
of bevel pinion.

1010 Hydro Models With Four-Wheel

Drive

84. R&R FRONT-WHEEL DRIVE IDLER. Re-

fer to paragraph 83 and remove the bevel pinion
shaft, then remove snap ring (36—Fig. 82) and rear
thrust washer (33). Idler gear (35), bearing (34) and
front thrust washer (33) can be pulled from shaft.
Unbolt and remove shaft (32) for inspection.
Reverse removal procedure for installing. Tighten
the two screws attaching shaft (32) to 50-60 N.m
(37-44 ft.-lbs.) torque.

85. R&R FROIVT-DRIVE OUTPUT SHAFT. To

remove shaft (42—Fig. 82), first remove the bevel
pinion shaft as outlined in paragraph 83. Remove seal
(39) and snap ring (40), then pull shaft (42), bearing
(41) and snap ring (43) out toward front. Sliding gear
Fig. 81—Expioded view of range shift iinkage. Fork (10) (44) can be lifted from housing. Bearing (45) can be
moves gear (28—Fig. 79). pulled forward from case bore if renewal is required.
1. Safety switch 7. Plug When assembling, position sliding gear (44) with
2. Bracket 8. Spring pin of internal shift lever (10—Fig. 83) correctly en-
3. Roll pin 9. Detent ball gaging groove of gear, before inserting shaft (42—Fig.
4. Lever 10. Range shift fork
5. "O" rings 11. Lock screw 82). Make sure that gear moves smoothly before
6. Shaft 12. Shaft completing assembly.

59
Paragraph 85 (Cont.) MASSEY-FERGUSON

Fig. 82—Expioded view of front-wheei-

drive idler gear and output shaft used on
four-wheel-drive models. Gear (25) and
bevel pinion shaft (31) are also shown in
Fig. 80. Siiding (engagement) gear (44) is
also shown in Fig. 79.
25. PVont-wheel- 38. Bearing
drive gear 39. Seal
31, Bevel pinion 40. Snap ring
32. Idler shaft 41. Bearing
33. Thrust washer 42. Shaft 25
34. Needle bearing 43. Snap ring
35. Idler gear 44. Sliding gear
36. Snap ring 45. Bearing
37. Snap ring 46. Snap ring

42

i
Fig. 83—Expioded view of front-wheei drive control lever.
Pin of internai iever (10) fits in groove of sliding gear
(44—Fig. 82).
1. Lever 6. Detent hall
2. Roll pin 7. Snap ring
3. Plug . 8. Washer
4. Gasket 9. "O" rings
5. Spring 10. Shaft & internal le\ er

60
MODELS 1010 & 1020 Paragraphs 86-88

TRANSMISSION
1020 STANDARD
The main transmission of Standard 1020 tractors SHIFTER COVER
has three forward speeds and one reverse speed. The
two-speed range transmission compounds the total
number of gear reductions to six forward and two
1020 Standard Models '
reverse and is contained in the same housing as the 88. R&R AND OVERHAUL. First remove trans-
main transmission. A two-speed (slow or fast) creeper mission cover plate, then unbolt and remove shifter
(or mode) transmission is located in the rear axle cover (17—Fig. 84). Inspect shift rails (18 and 21) and
center housing which provides creeper speeds (ap-
proximately 5.8:1 reduction) in the slow position. The
combination of the main transmission, the range
transmission and the creeper transmission make 12
forward speeds and four reverse speeds possible.

INSPECTION

1020 Standard Models

86. Removal of the main transmission shift cover
with shift rails and forks from top of transmission
housing will permit visual inspection of most of the
main and range transmission components. Refer to
paragraph 88. Check to be sure that forks are firmly
attached to shift rails and check condition and opera-
tion of detents in rails.
Removal of the lift cover from the rear axle center
housing will permit visual inspection of the mode
transmission, bevel drive, differential, and final
drive.
Transmission, rear axle center housing (differen-
tial and final drive), rear axles and hydraulic system
share a common sump (oil supply). Check filters and
drained fiuid for evidence of metal particles. Refer to
paragraph 87 for lubrication requirements.

LUBRICATION
Fig. 84—Expioded view of main transmission top cover
1020 Standard Models and shift forks and range transmission shift fork. Detent
spring and bails (14, 15, 29 and 34) are alike except for
position.
87. Transmission, rear axle center housing (differ-
ential and final drive), rear axles and hydraulic sys- 1. Lever & knob 22. Shift fork (3rd & Reverse)
2. Boot 24. Oil filler plug
tem share a common sump (oil supply). The drain 3. Pin 25. Range (High-Low)
plug is located at bottom of transmission housing. 4. Washer shift lever
Lower the three-point hitch when draining oil. Ca- 5. Screw 26. "0" rings
pacity is approximately 23.0 L (24.3 qt.) and new 6. Plugs 27. Internal range shift lever
7. Spring 28. Range shift fork
filter should be installed each time fiuid is changed. 12. Detent plugs (3 used) 29. Detent ball & spring
The hydraulic system filter, which also filters trans- 13. Gaskets (2 used) 30. Range shift rail
mission fluid, is located on upper left side of trans- 14. Detent springs (2 used) 31. Retainer
15. Detent balls (2 used) 32. Pto lever
mission housing. Fluid and filter should be drained 16. Interlock halls (2 used) 33. Internal pto shift lever
and renewed after initial 50 hours and at least every 17. Shift cover 34. Detent ball & spring
200 hours of operation thereafter. Recommended lu- 18. Shift rail (1st & 2nd) 35. Pto shift fork
19. Shift fork (1st & 2nd) 36. Shift rail retaining screw
bricant is "Massey-Ferguson Permatran III" or SAE 20. Double roll pins 37. Pto shift rail
80W GL-3 or GL-4 oil. 21. Shift rail (3rd & Reverse) 38. "0" ring

61
Paragraphs 89-92 MASSEY-FERGUSON

forks (19 and 22) for wear and damage. Remove housing, out of the way. Disconnect, then remove
detent plugs (12), springs (14) and detent balls (15). hydraulic pressure line between pump and lift cov<>r
Drive both roll pins (20) from one of the shift forks, on tractor right side. Disconnect, then remove hy-
then slide shift rail from fork and shifter cover. Re- draulic pump suction line. Unbolt and remove foot-
move, but be careful not to lose the two interlock balls steps from both sides and disconnect both brake rods
(16). Other shift fork and rail can be removed after at turnbuckles. Detach or remove front drive shaft
removing the double roll pins. Unbolt and remove from four-wheel-drive models. Block both front
retainer (2), shift lever (1) and related parts. wheels to prevent rolling (1—Fig. 85), wedge betwe( n
Check all parts for scratches, wear, distortion and front frame and axle to prevent tipping, and support
evidence of overheating. All parts must move clutch housing securely (3) so that transmission can
smoothly with minimum of lost motion. Minimum be safely separated and moved away. Support the
width of shift fork fingers should be 6.0 mm (0.236 front of transmission with a sling (4) or by other
in.). One side of shift fork should not be worn deeper suitable method which will allow transmission and
than 0.5 mm (0.020 in.). Shift rails should be straight rear wheels assembly to be moved back away from
within 0.1 mm (0.004 in.). clutch housing. Remove the eight stud nuts securing
Reassemble in reverse of disassembly procedure. front of transmission to rear of clutch housing, then
Make sure that the two interlock balls (16) are cor- roll the rear assembly back away from clutch housing.
rectly located between shift rails, so that only one of Support rear axles and remove both rear wheels.
the two rails can be moved at a time. Be sure that Unbolt and remove seat, both rear fenders and hy-
double roll pins are installed in each shift fork. draulic lift cover. Support rear axle center housing
Tighten detent plugs (12) to 35-39 N.m (26-28 ft.-lbs.) and transmission independently, remove attaching
torque. stud nuts, then separate transmission from axle cen-
Make sure that transmission gears and shifter ter housing.
forks are both in neutral and install shifter cover When assembling, reverse removal procedure. Al-
assembly. Apply "Loctite 593" or equivalent to ways use new gaskets and seals.
threads of shift cover retaining screws.
90. OVERHAUL. Refer to the following para-
MAIN AND RANGE TRANSMISSION graphs for service to the various internal components
of the main transmission and range transmission.
1020 Standard Models Cross section of transmission (Fig. 86) shows the
relative position of transmission shafts.
89. REMOVE AND REINSTALL. To remove the
main and range transmission assembly, first lower 91. COUNTER (TOP) SHAFT. To remove the top
three-point hitch and drain fiuid from transmission, shaft, first remove transmission as outlined in para-
rear axle center housing, rear axles and hydraulic graph 89, then unbolt and remove the shifter covc^r.
system by removing drain plug from bottom center of Unbolt and remove the front cover (1—Fig. 87) and
transmission housing. Disconnect ground cable from remove snap rings (4 and 20) and washers (5 and 19)
battery, unbolt and remove transmission cover, dis- from ends of top shaft. Push shaft toward rear, re-
connect wires to warning lights and tail light, then move snap ring (10), then continue pushing shaft out
thread wires forward and attach to side of clutch toward rear. Remove gears (8, 9, 13 and 16) and
related parts from top opening as shaft is withdrawn.
Temporarily assemble parts (10 through 17) on
shaft and measure clearance between 24 tooth gear
(16) and snap ring (17). Clearance, measured with a
feeler gauge, should be 0.1-0.4 mm (0.004-0.016 in.).
If clearance is excessive, check all parts between the
two snap rings for wear. Thrust washer (15) is 0.4 mm
(0.016 in.) thick. Assemble parts (8 through 16) on
shaft as it is inserted into transmission housing.
Install bearings (6 and 18), washers (5 and 19) and
snap rings (4 and 20). Protect mainshaft splines when
installing front cover (1) to protect seal (2). Tight«m
stud nuts retaining front cover (1) to 15-19 N.m (11- L4
ft.-lbs.) torque.

Fig. 85—Biock and support front of tractor securely when

92. MAINSHAFT. To remove the mainshaft, fii st
separating between dutch housing and transmission remove transmission as outlined in paragraph 89,
housing. then unbolt and remove the shifter cover. Unbolt and

62
 MODELS 1010 & 1020 Paragraph 93

20

Fig. 87—Expioded view of counter (top) shaft.

1. Front cover 12. Needle bearing &
2. Seal inner race
3. Gasket 13. Gear (1st)
4. Snap ring 14. Bearing collar
5. Thrust washer 15. Thrust bearing
(20x31 x2mm) 40 X 47 X 4 mm)
6. Front bearing 16. High range gear
7. Tbp shaft 17. Snap ring
8. Gear (3rd & Rev) 18. Rear bearing
9. Gear (2nd) 19. Thrust washer
10. Snap ring (20x31 x 2 mm)
11. Thrust washer 20. Snap ring
60
Fig. 86—Cross section of main and range transmission
for 1020 Standard modeis. Refer to Fig. 87 for exploded
view of top shaft (7), to Fig. 88 for mainshaft (25), to Fig.
90 for reverse idier (35), to Fig. 93 for output shaft (49),
and to Fig. 94 for pto drive shaft (60).

remove the front cover (1—Fig. 87) and top shaft as

outlined in paragraph 91. Mainshaft (25—Fig. 88)
can be withdrawn from front.
Reassemble by reversing removal procedure. Make
sure that roller bearing (26—Fig. 89) remains in
output shaft and that mainshaft correctly enters
bearing when installing. Protect mainshaft splines
when installing front cover (1—Fig. 88) to protect seal
(2). Tighten stud nuts retaining front cover (1) to
15-19 N.m (11-14 ft.-lbs.) torque. Fig. 88—Expioded view of mainshaft. Bearing (26) is also
shown in Fig. 89 and Fig. 93.
22. Thrust washer
93. REVERSE IDLER. To remove the reverse 1. Front cover (30.5 x 42 2 mm)
idler shaft and gear, first remove transmission as 2. Seal 23. Bearing
3. Gasket 25. Mainshaft
outlined in paragraph 89 and top shaft as outlined in 21. Snap ring 26. Roller bearing
paragraph 91. Remove lock screw (27—Fig. 90) and
rotate shaft (29) 180°, then remove the two roll pins
(31). Do not attempt to remove roll pins unless Assemble parts (31 through 35) on shaft (29) out-
shaft is rotated so that they can be driven side of transmission housing and measure clearance
straight down. Bump shaft (29) out toward front between thrust washer (33) and side of gear (35).
and withdraw collars (32), washer (33), bearing (34) Clearance should be 0.1-0.3 mm (0.004-0.012 in.) with
and gear (35) through top opening. both collars (32) and roll pins (31) installed. Washers

63
Paragraph 94 MASSEY-FERGUSON

24

26

Fig. 89—View of partially disassembied transmission

showing bearing (26) iifted partially out of output shaft
and roll pins (31) in reverse idler shaft.

35
34
33
31

Flg^ gt—Exploded view of main transmission top cover

and shift forks and range transmission shift fork. Detent
spring and balls (14, 15, 29 and 34) are alike except for
position.
22. Shift fork (3rd & Reverse)
i
1. Lever & knob
2. Boot 24. Oil filler plug
3. Pin 25. Range (High-Low)
4. Washer shift lever
5. Screw 26. "0" rings
6. Plugs 27. Internal range shift levor
7. Spring 28. Range shift fork
12. Detent plugs (3 used) 29. Detent ball & spring
13. Gaskets (2 used) 30. Range shift rail
Fig. 90—Expioded view of reverse idier assembiy. 14. Detent springs (2 used) 31. Retainer
27. Lock screw 15. Detent balls (2 used) 32. Pto lever
28. Sealing washer 32. Collars (2 used) 16. Interlock balls (2 used) 33. Internal pto shift lever
29. Reverse idler shaft 33. Adjusting washer 17. Shift cover 34. Detent ball & spring
30. "()" ring 34. Roller bearing 18. Shift rail (1st & 2nd) 35. Pto shift fork
31. Roll pins (2 used) 35. Reverse idler gear 19. Shift fork (1st «& 2nd) 36. Shift rail retaining screw
20. Double roll pins 37. Pto shift rail
21. Shift rail (3rd & Reverse) 38. "0" ring

are available in thicknesses of 2.9, 3.2 and 3.5 mm

(0.114, 0.126 and 0.138 in.). Select washer (33) of (27) to 15-19 N.m (11-14 ft.-lbs.) torque. Remainder
thickness that will provide clearance within limits, of assembly is reverse of removal procedure.
remove roll pins and separate parts (31 through 35)
from shaft. Install "O" ring (30) in groove of shaft and
begin to insert shaft (29) into transmission housing 94. RANGE SHIFT. To remove the range shift fork
with chamfered end of holes for roll pins up. Slip one and related parts (25 through 31—Fig. 91), first re-
collar (32), selected thrust washer (33), bearing (34), move transmission as outlined in paragraph 89 and
gear (35) and remaining collar (32) on shaft as it is top shaft as outlined in paragraph 91. Remove plug
being inserted into transmission housing. Drive roll (12), detent spring and ball (29). Unbolt and remove
pins (31) through collars (32) and shaft (29) with split retaining plate (31), then withdraw shaft (30) from
of pin either toward front or rear. Rotate and position fork (28) and housing bore. Be careful to remove
assembled shaft, then install and tighten lock screw detent hall. Outside lever (25), internal lever (27)

64
 MODELS 1010 & 1020 Paragraphs 95-96
taching bearing housing (47) to transmission hous-
ing, then withdraw shaft (49) and related parts. Bear-
ing (46) can be removed from output shaft if renewal
is required.
Assemble all parts between snap ring (36—Fig. 93)
and bearing (46) on shaft, then measure clearance
between thrust washer (37) and inner race of bearing
(38) with feeler gauge. Vary thickness of thrust
washer (45) as required to obtain clearance of 0.1-0.3
mm (0.004-0.012 in.). Be sure to install selected
thrust washer (45) when assembling in transmission
housing.
Disassemble parts (36 through 43) from shaft, then
insert the partially assembled output shaft into hous-
Fig. 92—View of snap ring (36) which must be removed ing and install parts (36 through 43). Make sure to
before attempting to remove the drive pinion shaft. install drive key (48) before installing hub (41) and
use the selected thrust washer (45). Be sure to install
bearing (26) before installing mainshaft. Remainder
and "O" rings (26) can be removed if service is re- of assembly is reverse of disassembly. |
quired.
When assembhng, insert shaft (30), then turn shaft 96. PTO DRIVE SHAFT. To remove the pto drive
to align slot so that retaining plate (31) can be in- shaft, first remove transmission as outlined in para-
stalled. Tighten the two screws attaching retaining graph 89 and remove the transmission top cover as
plate (31) to housing to 20-24 N.m (15-18 ft.-lbs.) described in paragraph 88. Remove counter (top)
torque. Remainder of assembly is reverse of removal shaft, mainshaft, reverse idler assembly, range shift
procedure. fork and output shaft as outlined in paragraphs 91,
92, 93, 94 and 95.
95. OUTPUT SHAFT. To remove the output shaft, Drive roll pin from shift lever (32—Fig. 91), then
first remove the mainshaft as outlined in paragraph remove lever. Remove lock screw (36), push shift rail
92 and the range shift fork as outlined in paragraph (37) forward and remove shift fork (35). Be careful
94. Remove snap ring (36—Fig. 92) and thrust not to lose detent spring and ball (34) as shaft
washer (37—Fig. 93). Remove the three screws at- is withdrawn. Internal shift lever and shaft (33)
with "O" rings can be removed.
Remove pto shaft (75—Fig. 94), rear bearing (74),
snap ring (73) and coupling (72). Dislodge snap ring
(71) from behind middle bearing (70) and gradually .
move the shaft (60) toward front. Remove thrust
washer (69), gear (66), bearing (67), inner race (68)
and thrust washer (65). Remove hub (63) and shift
collar (64). Remove overrunning clutch (62) and finish
.38 withdrawing shaft.
Overrunning clutch (62) should turn smoothly in
one direction and lock positively in the other direc-
tion. Clutch can not be disassembled and new unit
should be installed if damaged.
To determine correct thickness of thrust washer
47 (69), assemble parts (62 through 70) between snap
46
ring (61) and snap ring (71) onto shaft (60) before
Fig. 93—Exploded view of output shaft and related parts. installing in transmission housing. Use feeler gauge
Bearing (26) is aiso shown in Fig. 88 and Fig. 89. to measure clearance between snap ring (61) and hub
26. Roller bearing 43. Gear (Low) of overrunning clutch (62). Correct clearance is 0.1-
36 Snap ring 44. Bushing
37 Thrust washer 45. Thrust washer (40 X 55 0.3 mm (0.004-0.012 in.). Install thrust washer of
(40 X 55 X 3.8 mm) x 3.8, 4.1, 4.4 or 4.7 mm) correct thickness and recheck clearance. When thrust
38 Ball bearing 46. Ball bearing washer of correct thickness has been selected, remove
39 Bushing 47. Retainer
40. Gear (High) 48. Drive key
parts from shaft and reassemble in transmission
41. Hub 49. Output shaft housing. Refer to Fig. 86 for cross section of installed
42. Coupling (range) 50. Needle bearing pto shaft.

65
Paragraphs 97-99 MASSEY-FERGUSON

Fig. 94^Expfoded view of pto drive

shaft located in the transmission hous-
75 ing.
57. Snap ring 67. Roller beari iig
58. Thrust washer 68. Inner race
(20.5x31 x2mm) 69. Thrust waslier
59. Ball bearing (variable
60. Pto drive shaft thickness)
61. Snap ring 70. Needle bearing
62. Overrunning clutch 71. Snap ring
63. Hub 72. Coupling
64. Shift collar 73. Snap ring
65. Thrust washer 74. Ball bearing
66. Drive gear 75. Pto shaft

Install pto shift assembly by reversing removal left hand threads. Shde shift collar (9), hub (10),
procedure. Be careful that detent ball and spring gear (11) and bearing (12 and 13) from pinion shaft.
(34—Fig, 91) are not lost when installing rail into Remove front-wheel-drive gear (14) or spacer (15),
fork. Tighten lock screw (36) to 15-19 N.m (11-14 then remove the rear axle housings as outlined in
ft.-lbs.) torque. paragraph 142. Tap bevel pinion shaft (21) with a soft
hammer to unseat bearing (16), then slide bearing
CREEPER (MODE) TRANSMISSION cone, shims (17) and spacer (18) from shaft. Move the
differential and ring gear to the right slightly and
remove the bevel pinion and cone for rear bearing
1020 Standard Models (19). Be careful not to mix, lose or damage thrust
washers (22 and 25) and shims (23 and 26).
97. CREEPER SHIFT CONTROL. Refer to para-
Shims (17) are located between cones of bearirgs
graph 89 and separate the transmission from the rear
(16 and 19) and estabhsh bearing adjustment. Shims
axle center housing. Remove roll pin (1—Fig. 95) and
(20) position bevel pinion gear to set gear mesh posi-
pull shift lever (2) from shaft. Remove detent plug (5),
spring (6) and ball (7). Remove lock screw (3), with-
draw rail (8) and lift shift fork (9) from transmission.
Shaft and internal lever (10) can be pulled from
housing bore and new "O" rings (11) can be installed.
Reassemble by reversing removal procedure.

98. REDUCTION SHAFT. Refer to paragraph 89

and separate the transmission from the rear axle
center housing, then refer to paragraph 168 for re-
moving the hydraulic lift cover. Remove snap ring
(1—Fig. 96) and thrust washer (2) from rear of reduc-
tion shaft (6), then tap shaft toward front out of
bearing (4). Bearing (4) can be removed after remov-
ing either snap ring (3 or 5). 10
Check condition of needle bearing (7) and pilot 11
surface of top shaft (7—Fig. 87). Reassemble by re-
versing removal procedure. P/g. 95—Exploded view of creeper (mode) shifter con-
trols.
99. DRIVE PINION SHAFT. Refer to paragraph 1. Roll pin
89 and separate the transmission from the rear axle 2. Lever 7. Detent ball
center housing. Remove the hydraulic lift cover as 3. Lock screw 8. Rail
4. Sealing washer 9. Shift fork
outlined in paragraph 168. Prevent the pinion gear 5. Detent plug 10. Shaft & internal lrver
from turning and remove nut (8—Fig. 96). Nut has 6. Spring 11. "O" rings

66
MODELS 1010 & 1020 Paragraph 99 (Cont.)

Fig. 96—Expioded view of creeper transmission, bevei drive and differential for 1020 Standard modeis.
1. Snap ring 12. Roller bearing
2. Thrust washer 13. Inner race 21. Bevel pinion & shaft 27. Carrier bearing cup
(20 X31 x 2 mm) 14. Front-wheel-drive gear 22. Thrust washer & cone
3. Snap ring (same as 5) 15. Spacer (2WD models) (82 X 9 9 x 3 mm) 28. Differential carrier
4. Ball bearing 16. Bearing cup & cone 23. Shims (82x99x0.1, 29. Roller bearing (2 used)
5. Snap ring (same as 3) 17. Shims (0.1, 0.15, 0.15, 0.2 & 0.5 mm) 30. Thrust washer (2 used)
6. Reduction shaft & gear 0.2 & 1.0 mm thick) 24. Carrier bearing cup 31. Side gear (2 used)
7. Needle bearing 18. Bearing spacer & cone 32. Differential pinion shaft
8. Nut (left hand threads) 19. Bearing cup & cone 25. Thrust washer (68 X 33. Thrust washer (2 used)
9. Shift collar 20. Thrust washer (3.0, 84 X 3 mm) 34. Differential pinion (2 used)
10. Hub 3.1,3.2,3.3,3.4,3.5 26. Shims (68x84x0.1, 0.15, 35. Roll pin
11. Creeper gear & 3.6 mm thick) 0.20 & 0.5 mm) 36. Ring gear

tion. Total thickness of shims (23 and 26) sets the hub (10) and nut (8). Tighten nut (8) to 59-78 N.m
differential carrier bearings (24 and 27). Moving shim (44-57 ft.-lbs.) torque, then check rolling torque of
thickness from one side to the other (23 to 26 or 26 to shaft in bearings. If correct thickness of shims is
23) moves the differential and ring gear (36), chang- installed at (17), pinion shaft (21) will rotate with
ing backlash of bevel gears. Refer to paragraphs 137 0.79-0.98 N.m (7.0-8.7 in.-lbs.) torque. Increase thick-
and 138 for adjusting carrier bearings and mesh ness of shims (17) to lower the rolling torque. Shims
position of bevel gears. are available in thicknesses of 0.1, 0.15, 0.2 and 1.0
To adjust bearings (16 and 19), make sure that mm.
bearing cups are seated in housing bores. Assemble After bearings (16 and 19) are adjusted, mesh po-
bevel pinion shaft (21) with original thrust washer sition of bevel gears can be adjusted by selecting
(20), cone for bearing (19), spacer (18) and original correct thickness of thrust washer (20) as outlined in
shims (17). Insert the bevel pinion shaft and assem- paragraphs 137 and 138. When correct thicknesses
bled parts into housing and bearing cups and install for shims (17) and thrust washer (20) have been
cone for front bearing (16). Install front-wheel-drive determined, install roller bearing (12), gear (11) and
gear (14) or spacer (15), followed by bearing race (13), shift collar (9), then tighten nut to the correct torque.

67
Paragraphs 100-101 MASSEY-FERGUSON

Fig,97—Exploded view of front-wheel-drive idler gear and

output shaft for 1020 Standard models so equipped. Idler
gear (41) meshes with gear (46) and gear (14—Fig. 96).
37. Locking collar screw 46. Ball bearing
38. Locking collar 47. Front drive shaft
39. Thrust washer 48. Sliding gear
(25 X 38 X 3 mm) 49. Snap ring
40. Roller bearing (same as 53)
41. Idler gear 50. Ballbearing
43 42. Thrust washer 51. Washer (30.5 >
(same as 39) 42 x 2 mm)
43. Idler shaft 52. Snap ring
44. Snap ring 53. Snap ring
45. Thrust washer (same as 53)
(20 X 31 X 2 mm) 54. Oil seal

Remainder of assembly is reverse of removal pro- 101. OUTPUT SHAFT. To remove shaft (47—Fig.
cedure. 97), first remove the bevel pinion shaft as outlined m
paragraph 99 and the idler gear and shaft as outlined
in paragraph 100. Remove seal (54) and snap ring(53)
FRONT-WHEEL DRIVE from front. Remove snap ring (44) and washer (45)
from rear, then pull shaft (47) and bearing (50) out
toward front. Shding gear (48) can be lifted from
1020 Standard Models With housing. Bearing (46) can be pulled forward from case
Four-Wheel Drive bore if renewal is required.
100. IDLER GEAR. To remove the idler gear (41—
Fig. 97) and shaft (43), first remove the drive pinion When assembling, position sliding gear (48) with
shaft as outlined in paragraph 99. Remove screw (37) pin of internal shift lever correctly engaging groove
and pull shaft forward, lifting parts out as shaft is of gear before inserting shaft (47). Make sure that
removed. gear moves smoothly before completing assembly.

TRANSMISSION
1020 HYDRO
The hydrostatic transmission consists of a variable input shaft. The Kayaba HVFD-23 hydrostatic unit
displacement piston type hydraulic pump and a fixed has two output shafts. The upper shaft provides drive
displacement piston type hydraulic motor located from the engine clutch to pto front counter shaft
just behind the clutch housing. The hydrostatic pump which is located in transmission housing. The lower
is connected directly to the engine clutch disc by the shaft is hydrostatic motor output shaft which drives

68
 MODELS 1010 & 1020 Paragraphs 102-104
G B

Fig. 9S—Schematic of oil flow for 1020

Hydro modeis. Ciiarge pump, pressure
pump and motor for hydrostatic system
are ail contained in unit (D),
A. Suction filter E. Hydrostatic
B. Lift system pump pressure filter
C. Hydraulic lift cover F. Case relief valve
D. Hydrostatic unit G. Oil cooler

the three-speed-range transmission gears located in TROUBLESHOOTING

the rear axle center housing.
1020 Hydro Models
The hydrostatic drive provides forward speeds and
reverse speeds in each of the three speed ranges. 103. The following are symptoms which may occur
during operation and possible causes related to the
hydrostatic transmission.
1. Tractor will not move or operates erratically.
LUBRICATION a. Transmission oil level low.
b. Control linkage improperly adjusted or dam-
aged, j
1020 Hydro Models c. Charge pump damaged. '
d. Engine clutch or transmission input shaft fail-
102. The hydrostatic unit utilizes fluid contained ure.
in a common reservoir consisting of the transmission e. Neutral valve stuck open.
housing, rear axle center housing and the rear axle 2. Tractor moves, but lacks power.
housings. a. Faulty high pressure relief valve.
b. Internal leakage of high pressure oil.
3. Abnormal noise when operating.
Fluid and filters should be changed after the first a. Suction filter plugged.
50 hours of operation and every 200 hours of opera-
b. Air leak on suction side of charge pump.
tion thereafter. Lower three-point hitch and remove
c. Charge pump or relief valve faulty.
drain plugs. Drain plug is located at hottom front of
4. Tractor fails to stop in neutral.
axle center housing. Suction filter (A—Fig. 98) lo-
cated on left side is different from high pressure filter a. Control linkage out of adjustment.
(F) located on right side. Clean filter adapters and b. Neutral valve stuck or damaged.
luhricate filter seal with clean oil before installing 5. Oil overheating.
new filters. Tighten filters by hand, do not use filter a. Tractor overloaded.
removal wrench to install. Fill reservoir with b. Oil cooler plugged.
"Massey-Ferguson Permatran III" or equivalent c. High pressure oil leak.
fiuid, then start engine. Allow engine to run at idle
while operating hydraulic controls and raising and TESTS AND ADJUSTMENTS
lowering lift arms. Stop engine, lower three-point
hitch and check fiuid level. Tractor should be on level 1020 Hydro Models
surface when checking fiuid level. Dipstick and fill
plug are located just in front of seat. Capacity is 104. CHARGE PRESSURE. Remove cover from
approximately 26 L (27.5 quarts), but some oil may transmission housing and clean area thoroughly. Ap-
remain in system when draining. Control linkage ply parking brake, block wheels and disengage front-
should be lubricated with lithium base multipurpose wheel drive (if so equipped). Make sure fluid is at
grease. proper level and install test gauge as shown at (A—

69
Paragraphs 105-107 MASSEY-FERGUSON

Fig. 99—instali test gauge as shown at (A) to checi( charge

pressure.

Fig. 99). Start and run engine until fiuid reaches Fig. 100—instaii test gauges as shown at (F and R) for
operating temperature, then set engine to run at 2500 checking high relief pressure. Gauge at (F) checks for-
rpm and observe gauge pressure. Correct pressure is ward pressure and gauge at (R) checks pressure in re-
421-559 kPa (61-81 psi) and minimum allowable verse.
pressure is 392 kPa (57 psi).
Low charge pressure may be caused by plugged oil
filter, faulty charge pressure relief valve or worn or pressure in opposite direction. Gauge (F—Fig. 100) is
damaged charge pump. for checking forward pressure and gauge (R) is ibr
checking pressure in reverse. Correct pressure is
105. HIGH RELIEF PRESSURE. Remove cover 24,512-26,442 kPa (3555-3835 psi). High pressure
from transmission housing and clean area thor- relief valves are cartridge type and adjustment is not
oughly Apply parking brake, block wheels and disen- possible.
gage front-wheel drive (if so equipped).
106. CASE RELIEF PRESSURE. Remove co\er
CAUTION: Tractor must be securely blocked,
from transmission housing and clean area thor-
high range selected and brakes securely set when oughly. Apply parking brake, block wheels and disen-
making this test. Even so, tractor may attempt to gage front-wheel drive (if so equipped). Make sure
move. Be extremely careful. fluid is at proper level and install test gauge as shown
at (B—Fig. 101). Start and run engine until fluid
Make sure fiuid is at proper level and install test reaches operating temperature, then set engine to
gauges as shown at (F and R—Fig. 100). Start and run at 2500 rpm and observe gauge pressure. Corn^ct
run engine until fluid reaches operating tempera- pressure is 196-226 kPa (28.5-32.7 psi). Operation
ture, then shift range lever to HIGH range. Run should be discontinued if pressure is more than 245
engine at 2500 rpm, depress control pedal until trun- kPa (35.6 psi).
nion shaft rotates 8° to 9°, observe gauge pressure, If case pressure is excessive, check for plugged oil
then let pedal return to neutral. cooler or faulty case pressure relief valve. High case
pressure may also be the result of high pressure oil
NOTE: Do not check relief pressure for more than leakage from pump or motor.
ten seconds, or overheating and damage may oc-
cur. 107. PUMP VACUUM. Remove cover from trans-
mission housing and clean area thoroughly. Apply
Move shift control pedal in opposite direction until parking brake, block wheels and disengage froat-
trunnion shaft rotates 8° to 9"" from neutral and check wheel drive (if so equipped). Make sure fluid is at

70
MODELS 1010 & 1020 Paragraph 108
proper level and install test (vacuum) gauge in suc-
tion line as shown at (C—Fig. 102). Start and run
engine until fluid reaches normal operating tempera-
ture, then set engine to run at 2500 rpm and observe
gauge pressure. Correct vacuum with oil temperature
at 25° C (77° F) is 50 mm (2.0 in.) of Mercury (Hg).
With oil temperature at 50° C (122° F), correct vac-
uum is 30 mm (1.2 in.) of Hg. Operation should be
discontinued if vacuum is more than 220 mm (8.7 in.)
ofHg.
Check for a restriction in the oil inlet circuit (such
as a plugged filter) if pump vacuum is higher than
normal. 1

108. CONTROL LINKAGE ADJUSTMENT.

Raise and block rear axle so the wheels are off ground
and disengage front-wheel drive (if so equipped). Un-
bolt and remove linkage cover from right side of
transmission, then operate hand lever and foot pedal,
while checking linkage for freedom of movement.
Linkage should operate smoothly and return to neu-
tral. Lubricate fittings on shafts (1 and 2—Fig. 103)
with lithium based multi-purpose grease. Lubricate
cam plate pivot (3), cam and pin (4) with molybdenum
disulfide grease. Lubricate surfaces of neutral adjust-
ing lever and trunnion lever bearings (5) with molyb-
denum disulfide grease. Lubricate hand lever cam
Fig. 101—lnstaii gauge as shown at (B) to check case plate pivot and sliding surface with molybdenum
relief pressure. disulfide grease.
Adjust exposed length (A) of spring eye to 25 mm
(0.984 in.). Move hand lever fully to the rear (neutral)
position and check to be sure that raised tip of cam is

Fig. 103—Drawing of ground speed control linkage show-

ing lubrication and adjustment points.
T, Trunnion shaft
1. Neutral lever pivot 5. Trunnion lever &
2. Pedal pivot neutral adjusting lever
Fig. 102—Install gauge as shown at (C) to check pump 3. Hand lever cam pivot 6. Neutral adjusting screw
vacuum. 4. Cam surface & pin & locknut

71
Paragraph 109 MASSEY-FERGUSON

centered on roller (4) and that roller is in 1 o'clock point and tighten locknut. Refer to Fig. 104 for ex-
position. If necessary, adjust hand lever linkage to ploded view of ground speed control linkage.
establish correct position of roller and cam point. Hand control lever friction can be adjusted by tight -
Start engine and operate at low idle speed. Move ening nuts against friction spring. Initial setting will
range shifter to LOW range position and operate expose 18 mm (0.71 in.) of threads, but hand lever
ground speed control pedal several times through should not be difficult to move while maintaining
forward, neutral and reverse positions. Move the setting throughout range of movement.
hand control lever from neutral to forward and back
several times and make sure that both hand and foot HYDROSTATIC UNIT
controls return to neutral. In neutral, rear wheels
should not creep either forward or reverse. Any move- 1020 Hydro Models
ment of wheels indicates incorrect neutral adjust-
ment. 109. REMOVE AND REINSTALL. To remove the
To adjust, first loosen locknut (6—Fig. 103) on hydrostatic unit, split tractor between the clutch
adjusting screw. Turn adjusting screw in until wheels housing and rear axle center housing as follows.
just start to turn forward, then turn screw out until Disconnect battery ground cable from negative ter-
wheels just start to rotate rearward. Carefully estab- minal of battery Remove center console and trans-
lish both points (forward and reverse) at which mission cover. Remove foot steps from both sides.
wheels just start to turn, then turn screw to the mid Unplug wiring connectors for warning flashers and

Fig. 104—Expioded view of ground speed

control linkage.
6. Neutral adjusting
screw & locknut 18. Clamp screw
7. Pedal 19. Dampener
8. Snap ring 20. Neutral adjusting
9. Washer lever
10. Pedal pivot hub 21. Neutral lever
11. Pedal stop screw & nut 22. Snap ring
12. Hand lever cam 23. Bracket
13. Snap ring 24. Nut
14. Pedal stop screw & nut 25. Nut
15. Ball bearing rollers 26. Spring adjuster
16. Ball bearing roller 27. Spring
17. Trunnion lever 28. Cover

72
MODELS 1010 & 1020 Paragraph 109 (Cont.)
tail lights, then thread wires through clips forward to
the clutch housing. Lower the three-point lift arms,
then drain oil from transmission and center housings.
Disconnect hydraulic line from right side of oil cooler
and from relief valve body (A—Fig. 105). Disconnect
hydraulic line from left side of oil cooler and from hose
connector of suction line (B—Fig. 106). Disconnect
hydraulic lift pressure line from engine mounted
pump (C) to lift arms, so that tractor can be sepa-
rated. Disconnect suction line from gear pump.
Loosen hose connections and remove rear suction line
from the filter assembly and the hydrostatic unit
suction pipe. Be sure to cover all hydraulic open-
ings immediately after disconnecting to pre-
vent the entrance of dirt. Loosen locknuts and
Fig. 105—Hydraulic line from right side of oii cooler is separate brake rods at turnbuckles located on both
attached to reiief valve body as shown at (A). sides. Detach hoses (D and E—Fig. 107) from top of
hydrostatic unit, then plug openings to prevent en-
trance of dirt. Unbolt damper at rear (F—Fig. 108)
and remove pin attaching control rod to cam plate.
Remove the three screws which attach pedal (7—Fig.
104), then remove pedal. Unbolt and remove cover
(28). Remove snap ring (8—Fig. 109), then remove
pedal pivot (10—Fig. 104). Detach pedal neutral
spring (27). Loosen clamp screw (18—Fig. 109), then
remove trunnion lever (17—Fig. 104).

Remove the three screws attaching drive shaft

cover of four-wheel-drive models to transmission
housing. Wedge between front axle and front support
frame to keep front from tipping and block both front
wheels to prevent rolling. Attach support brackets
and stands to sides of clutch housing or otherwise
support clutch housing and engine. Support front of
Fig. 106—Hydraulic line from left side of oil cooler is center housing with a sling (Fig. 110) so that rear of
connected to suction line by hose (B). Line (C) is pressure tractor can be moved back, then remove the ten nuts
iine at engine mounted hydraulic lift pump. and washers attaching clutch housing to rear axle
center housing. Carefully roll the rear of tractor back
away from clutch housing.
i

Fig, 107—Tubes (D & E) must be disconnected from

hydrostatic unit when separating clutch housing from Fig. 108—Detach end of damper (F) located under right
hydrostatic housing. footstep.

73
Paragraphs 110-111 MASSEY-FERGUSON

110. Proceed as follows after tractor is separated. using two bolts and nuts (J—Fig. 112). Install and
Remove the two screws (G—Fig. Ill), then detach lubricate the three "O" rings between hydrostatic
filter tube from spacer. Separate the spacer plate with unit and spacer, then attach hydrostatic unit to
hydrostatic unit attached from the rear axle center spacer. Remainder of assembly is reverse of removal
housing. Remove the six stud nuts and washers (H— procedure. Adjust brakes and speed control linkage
Fig. 112), then separate hydrostatic unit from spacer. when assembling. Install new filters and refill system
reservoir with "Massey-Ferguson Permatran III" or
Before attaching hydrostatic unit to spacer, tempo- equivalent fluid, then start engine. Allow engine to
rarily attach spacer to the rear axle center housing run at idle while operating hydraulic controls and
raising and lowering lift arms. Stop engine, lower
three-point hitch and check fluid level. Tractor should
be on level surface when checking fluid level. Capac-
ity is approximately 26 L (27.5 quarts), but some oU
may remain in system. Control linkage should be
lubricated with lithium base multipurpose grease.

OVERHAUL

1020 Hydro Models

111. Before disassembling, plug openings and clean
the exterior of the hydrostatic unit. To disassemble,
remove the eight socket head screws retaining poH
block (37—Fig. 113) to hydrostatic case (16), then
carefully separate block from case. Be extremely
careful not to drop or otherwise damage the
Fig. 109—View of ground speed controi linkage with valve plates (25 and 31). Hold output shaft (18) and
cover removed. Refer to Fig. 104 for exploded view. bump case (16) gently to unseat motor assembly, then
lift the motor cylinder block assembly (26 through 31)
and output shaft (18) from case.
Unseat snap ring (23) from groove at base of pump
cylinder block as shown in Fig. 114, then remo\e
pump cylinder block assembly (21, 22 and 24—Fig.
113). Use a hooked tool (T—Fig. 115) to pull thrust
plate (20—Fig. 113) from swashplate (19).

Fig. 110—Modei 1020 Hydro tractors should be supported

as shown when separating clutch housing from rearaxie
center housing and hydrostatic assembly.

Fig. 112—Hydrostatic unit is attached to spacer with six

stud nuts (H). When attaching hydrostatic unit to spacer,
temporarily attach spacer to center housing by two bo(ts
Fig. 111—Two screws (G) attach filter tube to spacer. and nuts (J).

74
 MODELS 1010 & 1020 Paragraph 111 (Cont.)

41

Fig. 113—Exploded view of hydrostatic drive unit used on 1020 Hydro models,
1. Snap ring 13. Bushing & needle bearing 24. Pump cylinder block assy. 33. "O" rings
2. Oil seal 14. Oil seal 25. Valve port plate 34. Springs
3. Charge pump housing 15. Charge pump 26. Motor swashplate 35. Check & relief valves
4. Pump rotors relief valve 27. Motor pistons 36. Neutral valves
5. "O" rings 16. Hydrostatic case 28. Retainer plate 37. Port block
6. Wear plate 17. Bearing 29. Spacer 38. Bearings
7. Snap ring 18. Output shaft 30. Motor cyhnder 39. Oil seals
8. Snap ring 19. Pump swashplate block assy. 40. Retainer
9. Bearing 20. Thrust plate 31. Valve port plate 41. Retainer
10. Input shaft 21. Pump pistons 32. Check/high 42. Pressure test
11. Covers 22. Retainer plate pressure relief port plugs
12. "O" rings 23. Snap ring valve plugs 43. Gasket

Unbolt and remove charge pump assembly (3), then be 3.0 mm (0.118 in.), but should not be less than 2.9
bump input shaft (10) and bearing (9) from case. mm (0.114 in.). End clearance of charge pump rotor
Scribe marks on swashplate covers (11) and case (16) set in bore of housing (3) should be 0.030-0.045 mm
to identify their original locations and original posi- (0.0012-0.0018 in.), but should not exceed 0.055 mm
tions, then tap end of swashplate trunnion shaft (19) (0.0021 in.). Check all parts for visible signs of wear
with a soft hammer to remove covers from case. or scoring and renew any that are cracked or other-
Carefully remove valve port plates (25 and 31) from wise questionable.
recesses in port block (37). Unbolt charge relief valve Clean all parts and housings thoroughly, then coat
assembly (15) from port block and remove the re- with new transmission oil before assembling. Coat
tainer, spring and poppet. Remove plugs (32) and "O" rings and seals with grease to provide initial
valves (35) from port block. lubrication and to hold parts in place while assem-
Clearance between shoe and socket of piston (21 or bling.
27) should be 0.03 mm (0.0012 in.), but should not Reassemble by reversing disassembly procedure.
exceed 0.20 mm (0.0079 in.). Clearance between pis- Tighten the six screws retaining covers (11) to 3.5-4.3
ton (21 or 27) and relative bore in cylinder (24 or 30) N-m (31-37 in.-lbs.) torque. Tighten screws retaining
should be 0.02 mm (0.0008 in.), but should not exceed pump housing (3) to case (16) to 16-19 N.m (12-14
0.04 mm (0.0016 in.). Thickness of piston shoe should ft.-lbs.) torque. Measure protrusion of bearing (17)

75
Paragraph 112 MASSEY-FERGUSON

from end of motor swashplate (26) to confirm that port block and tighten retaining screws to 34-39 N.m
bearing is fully in place. Correct bearing protrusion (25-29 ft.-lbs.) torque.
should be 16.9-17.0 mm (0.665-0.669 in.). Measure
distance from face of case (16) to face of both pump
and motor cylinders (24 and 30). Check for possible
interference if depth to cylinders is not about 1 mm SPACER
(0.038 in.). Tighten screws retaining covers (40 and
41) to 3.5-4.3 N.m (31-37 in.-lbs.) torque. Tighten 1020 Hydro Models
screws retaining charge relief valve (15) to 9.8-11.76
N.m (87-104 in.-lbs.) torque. Tighten plugs (32 and 112. REMOVE AND REINSTALL. The hydio-
42) to 49-58 N.m (36-43 ft.-lbs.) torque. Tighten neu- static spacer is located between the clutch housing
tral valves (36) to 35-39 N.m (26-28 ft.-lbs.) torque. and the rear axle center housing. The spacer requires
Apply grease to surfaces of port block (37) and valve little service, but removal is required for other opera-
port plates (25 and 31), then install plates in recesses
of port block, aligning notches over dowel pins. Install

7 mm
4 mm

100 mm
g hooked tool (T) can be made to dimensions
Fig. 114—Remove snap ring (23) as shown. shown and used to puii thrust piate (20) from swashpiate.

s 25 27 28 30 20

Fig. 116—Cross section of three-

speed-range transmission used on
1020 Hydro modeis. Hydrostatic unit
is attached to spacer (S).

76
 MODELS 1010 & 1020 Paragraphs 113-114
tions. To remove the spacer housing, refer to para- splined to upper (top) shaft and range is selected by
graph 109 and remove the hydrostatic unit. moving sliding gear (12) to engage one of the three

• RANGE TRANSMISSION
gears (27, 28 or 30). The pto drive shaft runs through
center of upper shaft as shown.

1020 Hydro Models 114. RANGE DRIVE GEAR AND BEARINGS.

Refer to paragraph 109 and paragraph 112 and re-
113. The three-speed range transmission provides move the hydrostatic unit and spacer. Unbolt retainer
a choice of three gear selections. The range transmis- (4—Fig^ 117) and withdraw 27-tooth gear (2) and
sion is located in the front compartment of rear axle bearings (1 and 3). Needle bearing (5) is located in
center housing. The sliding gear is located on sliding rear of range drive gear (2).
hub of the bevel drive pinion shaft. Drive from the Inspect front end of bevel pinion shaft (20) which
hydrostatic unit lower shaft turns gear (2—Fig. 116), pilots into bearing (5). Install by reversing removal
which then turns upper gear (25). Upper gears are procedure.

45

Fig. 117^Exp!oded view of

rear axie center housing,
range transmission and re-
iated parts for 1020 Hydro
modeis.
1. Ball bearing
2. Range drive gear
3. Ball bearing
4. Retainer
5. Roller bearing
6. Nut
7. Spacer (two-
wheel drive)
8. Front-wheel-
drive gear
(37 teeth)
9. Bushing (same as 14)
10. Higb range gear
11. Hub
12. Sliding gear
13. Low range gear
14. Bushing (same as 9)
15. Taper roller bearing
16. Shims (0.10, 0.15,
0.20 or 1.0 mm thick) 24. Snap ring 34. Snap ring 40. Carrier bearing cup
17. Bearing spacer 25. Counter shaft 35. Thrust washer & cone
18. Taper roller bearing drive gear (82 X 9 9 x 3 mm) 41. Differential carrier
19. Thrust washer 26. Spacer 36. Shims (82x99x0.1, 42. Roller bearing (2 used)
(3.0,3,1,3.2,3.3, 27. Gear (54 teeth) 0.15, 0.2 & 0.5 mm) 43. Thrust washer (2 used)
3.4, 3.5 or 3.6 28. Gear (40 teeth) 37. Carrier bearing cup 44. Side gear (2 used)
mm thick) 29. Spacer & cone 45. Differential pinion shaft
20. Bevel pinion shaft 30. Gear (26 teeth) 38. Thrust washer 46. Thrust washer (2 used)
21. Coupling 31. Countershaft (68 X 84 X 3 mm) 47. Differential pinion (2 used)
22. Roll pins 32. Bushing 39. Shims (68 x 84 x 48. Roll pin
23. Ball bearing 33. Ball bearing 0.1, 0.15, 0.20 & 0.5 mm) 49. Ring gear

77
Paragraphs 115-117 MASSEY-FERGUSON

115. COUNTER (TOP) SHAFT AND GEARS. To shaft as outlined in paragraph 115 and range shift
remove the counter shaft, first refer to paragraph fork as outlined in paragraph 116. Prevent the pinion
109, paragraph 112 and paragraph 114 and remove gear from turning and remove nut (6), then refer to
the hydrostatic unit, spacer plate and range drive paragraph 139 and remove the differential assembly.
gear and bearings. Unbolt and remove top cover from Remove spacer (7) or front-wheel-drive gear (8), bush-
range transmission, then remove the lift cover as ing (9) and gear (10) from bevel pinion shaft. Bump
outlined in paragraph 168. Refer to paragraph 155 bevel pinion shaft (20) to unseat front bearing cone
and remove the pto top shaft and overrunning clutch. (15). Withdraw hub (11), sHding gear (12), gear (13),
Slowly withdraw counter shaft (31—Fig. 117) and bushing (14) and bearing cone (15) from front while
bearing (23) from opening in front of housing, while pushing bevel pinion shaft (20) to the rear. Remove
lifting gears (25, 27, 28 and 30) and spacers (26 and shims (16), spacer (17), bearing cone (18) and thrust
29) from top opening. washer (19) with bevel pinion shaft.
Bearings (23 and 33) or bushing (32) can be re- Shims (16) are located between cones of bearings
newed if required. When reinstalling, reverse re- (15 and 18) and establish bearing adjustment. Thrust
moval procedure. Groove on outside of pto drive washer (19) positions bevel pinion gear to set gear
coupling (21) should be toward front. mesh position. Total thickness of shims (36 and 39)
116. RANGE SHIFT FORK AND LINKAGE. sets the differential carrier bearings (37 and 4(0.
Removing some thickness from shims (36 or 39) of one
First remove the counter shaft as outlined in para- side, then adding the same thickness to other side
graph 115. Make sure that safety switch (1—Fig. 118) moves the differential and ring gear (49), changing
and bracket (2) are removed from housing. Drive roll backlash of bevel gears. Shims (36 and 39) are
pin (3) from control lever, then remove the lever (4) different and cannot be physically moved from
from shaft (6). Remove lock screw (11), pull shaft (12) one side to the other. Refer to paragraph 140 for
forward and withdraw fork (10). Do not lose detent adjusting carrier bearings and mesh position of bevel
ball (9) or spring (8) inside transmission. Shaft gears.
(6) with "O" rings (5) can be removed and new "O"
rings installed. To adjust bearings (15 and 18), make sure that
Assembly is reverse of disassembly procedure. bearing cups are seated in housing bores. Assemble
bevel pinion shaft (20) with original thrust washer
117. SLIDING GEAR, HUB AND BEVEL PIN- (19), cone for bearing (18), spacer (17) and original
ION. To remove the bevel pinion (20—Fig. 117), slid- shims (16). Insert the bevel pinion shaft and assera-
ing gear (12) and related parts, first remove range bled parts into housing and bearing cups, then install
drive gear as outlined in paragraph 114, the counter cone for front bearing (15). Install bushing (14), hub

Fig. 118—View of range

shift fork and linkage.
Drawing on right
shows parts instalied
in case with counter
shaft removed.
1. Safety switch
2. Bracket
3. Roll pin
4. Lever
5. "O" rings
6. Shaft & inner levt r
8. Detent spring
9. Detent hall
10. Range shift fork
11. Locking screw
12. Rail

12

78
 MODELS 1010 & 1020 Paragraph 118

Fig. 119—View of front-wheei-drive shaft and

gear used on models with four-wheel drive.
Refer to Fig. 117 for iegend except the follow-
ing.
50. Snap ring 55. Front-drive output shaft
51. Ball bearing 56. Sliding gear
52. Oil seal 57. Snap ring
53. Snap ring 58. Ball bearing
54. Ball bearing 59. Snap ring

(11), bushing (9), and spacer (7) or front-wheel-drive When assembling, position sliding gear (56—Fig.
gear (8). Tighten nut (6) to 59-78 N.m (44-57 ft.-lbs.) 119) with pin of internal shift lever (10—Fig. 120)
torque, then check rolling torque of shaft in bearings. correctly engaging groove of gear, before inserting
If correct thickness of shims are installed at (16),
pinion shaft (20) will rotate with 0.79-0.98 N.m (7.0-
8.7 in.-lbs.) torque. Add thickness to shims (16) to
lower the rolling torque. Shims are available in thick-
nesses of 0.1, 0.15, 0.2 and 1.0 mm.
After bearings (15 and 18) are adjusted, mesh po-
sition of bevel gears can be adjusted by selecting
correct thickness of thrust washer (19). When correct
thickness for shims (16) and thrust washer (19) have
been determined, assemble bushing (14) with gear
(13), hub (11) with sliding gear (12) and bushing (9)
with gear (10). Tighten nut (6) to the correct torque.
Remainder of assembly is reverse of removal pro-
cedure.

1020 Hydro Models With Four-Wheel

Drive

118. R&R FRONT-DRIVE OUTPUT SHAFT. To

remove shaft (55—Fig. 119), first remove the bevel
pinion shaft as outlined in paragraph 117. Remove
seal (52) and snap ring (53). Disengage snap ring (57) 4 / 2
from groove in shaft, then pull shaft (55) and bearing I
3
(54) out toward front. Sliding gear (56) will slide from Fig, 120-~Expioded view of front-wheei-drive controis
shaft splines if snap ring (57) is removed. Bearing (58) which move siiding gear (56—-Fig. 119) on shaft.
can be pulled forward from case bore if renewal is 1. Lever 6. Detent ball
required. 2. Roll pin 7. Snap ring
3. Plug 8. Washer
Front-wheel-drive shift control (Fig. 120) can be 4. Gasket 9. "O" rings
removed if service is required. 5. Spring 10. Shaft & internal lever

79
Paragraphs 119-128 MASSEY-FERGUSON

shaft (55—Fig. 119). Install snap ring (57) over the make sure that snap ring (57) is correctly seated in
shaft as the shaft is being installed. Seat shaft in groove. Make sure that gear (56) moves smoothly
bearing (58), install front bearing (54) and check to before completing assembly.

REAR AXLE CENTER HOUSING

AND DIFFERENTIAL
119. The rear axle center housing on all models graph 89 and remove the main and range transmis-
contains the differential assembly and pto drive, with sion.
the rear axle and final drive assemblies attached. The
rear axle center housing of all four-wheel-drive mod- 125. REMOVE AND REINSTALL. To remove the
els also contains some front-wheel drive components. rear axle center housing, refer to paragraph 168 and
The range transmission is located in the center hous- remove the hydraulic lift cover, then refer to para-
ing of 1010 Hydro, 1020 Standard and 1020 Hydro graph 89 and remove the main and range transmis-
models. Actual components of the center housing and sion. Support the center housing and remove both
service procedures may be different, depending upon rear axle and final drive assemblies as outlined in
tractor model. paragraph 142.

AXLE CENTER HOUSING 1020 Hydro Models

1010 Standard Models 126. SPLIT TRANSMISSION FROM CENTER

HOUSING. To split tractor between rear axle center
120. SPLIT TRANSMISSION FROM CENTER housing and transmission housing, refer to para-
HOUSING. To split tractor between rear axle center graph 109 and remove the hydrostatic unit aad
housing and transmission housing, refer to para- spacer.
graph 61 and remove the transmission.
127. REMOVE AND REINSTALL. To remove the
rear axle center housing, refer to paragraph 168 aad
121. REMOVE AND REINSTALL. To remove the
remove the hydraulic lift cover, then refer to para-
rear axle center housing, refer to paragraph 168 and
graph 109 and remove the hydrostatic unit and
remove the hydraulic lift cover, then refer to para-
spacer. Support the center housing and remove both
graph 61 and remove the transmission. Support the
rear axle and final drive assemblies as outlined in
center housing and remove both rear axle and final
paragraph 142.
drive assemblies as outlined in paragraph 142.
DIFFERENTIAL AND BEVEL GEARS
1010 Hydro Models

122. SPLIT TRANSMISSION FROM CENTER 1010 Standard Models

HOUSING. To split tractor between rear axle center
128. R&R AND OVERHAUL. To remove differ-
housing and transmission housing, refer to para-
ential assembly, first remove the lift cover as outlined
graph 79 and remove the spacer housing.
in paragraph 168 and split rear axle center housing
from the transmission housing as outlined in para-
123. REMOVE AND REINSTALL. To remove the graph 120. Support the center housing and rem(^ve
rear axle center housing, refer to paragraph 168 and both rear axle and final drive assemblies as outlined
remove the hydraulic lift cover, then refer to para- in paragraph 142. Remove, but do not lose or damage
graph 79 and remove the spacer housing. Support the shims (74 and 79—Fig. 121) or thrust washer (80).
center housing and remove both rear axle and final Drive out the tapered pin (66—Fig. 122) attaching
drive assemblies as outlined in paragraph 142. differential lock lever to pedal shaft. Disconnect shift
link (69—Fig. 121) from lever and fork (70). Remove
1020 Standard Models the differential lock linkage (59 through 73). Slide
differential to left until bearing is out of housing bore,
124. SPLIT TRANSMISSION FROM CENTER turn differential until flats of carrier align with not ch
HOUSING. To split tractor between rear axle center in center housing, then lower differential and remove
housing and transmission housing, refer to para- from final drive opening.

80
 MODELS 1010 & 1020 Paragraph 129

Fig. 121—Expioded view of rear axie center housing, differential, front-wheei-drive output shaft and differential lock linkage
for 1010 Standard models. i
56. Bevel pinion 68. Washer 89. Snap ring
57. Bevel ring gear 69. Link 79. Shims {same as 74) 90. Ball bearing
58. Differential carrier 70. Lock fork 80. Thrust washer 91. Thrust washer
59. Differential lock pedal 71. Vi^asher (2.3 mm thick) 92. Front drive chain
60. Roll pins 72. Pivot pin 81. Thrust washer (2 used) 93. Sprocket
61. Oil seal 73. Plug 82. Side gear (2 used) 94. Shift coupling
62. Snap ring 74. Shims (0.1, 0.15, 83. Shaft 95. Front-drive
63. "O" ring 0.2 & 0.4 mm thick) 84. Thrust washer (2 used) output shaft
64. Pedal shaft 75. Ball bearing 85. Pinion (2 used) 96. Ball bearing
65. Snap ring 76. Roll pin 86. Coupling 97. Snap ring
66. Pin 77. Side gear bushing 87. Snap ring 98. Rear "axle
67. Internal lever 78. Ball bearing 88. Oil seal center housing

129. Before disassembling differential, measure

backlash between side gear (82—Fig. 121) and pinion
gears (85). Backlash should be 0.05-0.35 mm (0.002-
0.014 in.). Excessive play can sometimes be corrected
by installing new thrust washers (81 and 84). Ring
gear (57) can be unbolted and removed if renewal is
required. Ring gear and bevel pinion (56) are avail-
able only as a matched set. Refer to paragraph 67 for
removal of bevel pinion shaft.

To disassemble differential, drive pin (76) from

shaft (83), then remove shaft (83). Turn side gear
until gears (85) and thrust washers (84) can be re-
moved. Side gears (82) will sHde from bushings (77).

Reassemble by reversing disassembly procedure.

Degrease threaded holes in ring gear and attaching
screws, then coat threads with "Loctite 609" or
Fig, 122—Drive pin (66—Fig. 121) out with a punch as
equivalent. Tighten ring gear retaining screws to shown to disassembie differential lock linkage on 1010
49-54 N.m (36-39 ft.-lbs.) torque. Standard modeis.

81
Paragraphs 130-131 MASSEY-FERGUSON

ing with one shim (74) on left side. Shims can be held
in place with grease while assembling. Install left
axle housing using a new gasket, then push the
differential and right side bearing (78) to left making
sure that bearings are seated fully to the left. Meas-
ure depth of right side bearing (78) outer race as
shown in Fig. 123. Subtract thickness of the thrust
washer (80—Fig. 121) from the measured depth to
determine end play. If necessary, add shims (79) to
reduce end play within limits of 0,05-0.12 mm (0.002-
0.005 in.). Thrust washer (80) should always be in-
stalled on right side and nominal thickness is 2.3 mm
(0,090 in.). Shims (74 and 79) can be moved from side
to side as required to adjust backlash of bevel pinion
Fig^ 123—Measure depth of right carrier bearing as shown and ring gear after correct total thickness is deter-
to determine correct totai thickness of carrier bearing mined. After the correct total thickness of shims has
adjusting shims. been selected, set the selected shims and thrust
washer aside and attach rear axle center housing to
130. When installing, adjust carrier bearings (75 transmission housing. Refer to paragraph 67 for se-
and 78—Fig. 121) by changing the total thickness of lecting proper thickness of thrust washer (50—I ig.
shims (74 and 79) and thrust washer (80). Correct 55) and shims (51).
thickness of shims (74 or 79) will provide 0.05-0.12
mm (0.002-0.005 in.) end play with thrust washer (80)
installed. Backlash between bevel pinion (56) and 131. When assembling, tip the transmission onto
ring gear (57) can be changed by moving shims (74 or front surface of transmission housing. Wind four-
79) from one side to the other, without changing total wheel-drive chain (92—Fig, 49) around drive pinion
thickness. shaft of models so equipped. On all models, position
To determine correct total thickness of shims (74 rear axle center housing assembly onto rear of tra as-
and 79), position differential assembly in center hous- mission. Install stud nuts securing axle center hous-

58 Fig, 124—Expioded view of bevel

gears, differentiai and differential lock
mechanism for 1010 Hydro modeis.
18. Nut 37. Side gear
19. Tab washer bearing (2 used)
20. Retainer 38. Carrier bearing
21. Double row 39. Shim
ball bearing 40. Thrust washer
22. Shims 41. Shaft
23. Bearing housing 42. Pinion
24. Shims 43. Thrust waslier
25. Front-wheel- 44. Thrust washer
drive gear 45. Side gear
26. Spacer (two- (2 used)
wheel-drive) 52. Roll pins
27. Hub 53. Differential
28. Shding gear lock pedal
29. Collar 54. Snap ring
22 30. Roller bearing 55. Washer
31. Bevel pinion 56. "0" rings
shaft 57. Plug
32. Shims 58. Pivot shaft
33. Carrier bearing 59. Internal lever
34. Ring gear 60. Link
35. Roll pin 61. Differential
36. Differential carrier lock fork

82
 MODELS 1010 & 1020 Paragraphs 132-135
ing to transmission housing, then tip transmission required. Ring gear (34) and bevel pinion (31) are
and center housing to normal position. Remainder of available only as a matched set. Refer to paragraph
assembly is reverse of removal procedure. Always use 83 for removal of bevel pinion shaft.
new gaskets and seals. To disassemble differential, drive pin (35) from
Backlash between bevel pinion (56—Fig. 121) and shaft (41), then remove shaft (41). Turn side gear
ring gear (57), measured at outer edge of ring gear, until gears (45) and thrust washers (43) can be re-
should be 0.1-0,2 mm (0.004-0.008 in.). Backlash can moved. Side gears (45) will slide from bushings (37).
be changed by moving shims (74 or 79) from one side Reassemble by reversing disassembly procedure.
to the other, without changing total shim thickness. Degrease threaded holes in ring gear and attaching
screws, then coat threads with "Loctite 609" or
1010 Hydro Models equivalent. Tighten ring gear retaining screws to
49-54 N.m (36-39 ft.-lbs.) torque,
132. R&R AND OVERHAUL. To remove the
differential assembly, first remove range counter 134. When installing, adjust carrier bearings (33
shaft as outlined in paragraph 81 and both front and and 38—Fig. 124) by changing the total thickness of
rear pto shafts. Remove range shift fork as outlined shims (32 and 39) and thrust washer (40). Correct
in paragraph 82 and unbolt the bevel pinion shaft thickness of shims (32 and 39) will provide 0.05-0.12
retainer and housing (20 and 23—Fig, 124). The bevel mm (0.002-0.005 in.) end play with thrust washer (40)
pinion shaft (31) does not need to be disassembled installed. Backlash between bevel pinion (31) and
and removed, but must be moved forward about 30 ring gear (34) is changed by moving shims (32 or 39)
mm (1.18 in.). Refer to paragraph 142 and remove from one side to the other.
both rear axle assemblies. To determine correct total thickness of shims (32
and 39), position differential assembly in center hous-
NOTE: Be careful not to lose or mix any of the ing with one shim (32) on left side. Shims can be held
shims (22 and 24 or 32 and 39—Fig. 124) that are in place with grease while assembling. Install left
used to set gear position and to adjust bearings. axle housing using a new gasket, then push the
differential and right side bearing (38) to left making
Remove the differential lock mechanism (52 sure that bearings are seated fully to the left. Meas-
through 61). Refer to Fig, 125 for installed differential ure depth of right side bearing (38) outer race as
lock fork. Slide the differential to the right until shown in Fig. 123. Subtract thickness of the thrust
bearing clears, align flats of differential housing with washer (40—Fig. 124) from the measured depth to
notch in center housing, then lower differential and determine end play If necessary, add shims (39) to
remove from left side. reduce end play within limits of 0.05-0.12 mm (0.002-
0.005 in,). Thrust washer (40) should always be in-
133. Before disassembling differential, measure stalled on right side and nominal thickness is 2.3 mm
backlash between side gear (45—Fig. 124) and pinion (0.09 in.). Shims (32 and 39) can be moved from side
gears (42). Backlash should be 0.05-0.35 mm (0.002- to side as required to adjust backlash of bevel pinion
0.014 in,). Excessive play can sometimes be corrected and ring gear after correct total thickness is deter-
by installing new thrust washers (43 and 44). Ring mined. After the correct total thickness of shims has
gear (34) can be unbolted and removed if renewal is been selected, set the selected shims and thrust
washer aside and install the bevel pinion shaft (31).
Refer to paragraph 83 for installation of bevel pinion
and selection of shims (22). Refer to paragi*aph 135 to
set bevel gear backlash and mesh position.

135. Thickness of shims at location (24—Fig. 124)

controls position of bevel pinion and original thick-
ness can be considered correct unless case, bevel
gears or bearings (21 and 30) are changed. If neces-
sary to select correct thickness of shims (24), first
select correct total thickness of shims (32 and 39) as
described in paragraph 134 and refer to paragraph 83
and select correct thickness of shims (22). Install
bevel pinion shaft as outlined in paragraph 83 using
selected shims (22) and some shims at (24).
Install differential, reversing removal procedure,
Fig. 125—View of differentiai iock iinkage Installed in 1010 with sufficient shims (32) on left side to provide some
Hydro modei. bevel gear backlash. Shims can be held in place with

83
Paragraph 136 MASSEY-FERGUSON

To check backlash between bevel pinion (31) and

ring gear (34), mount dial indicator on center housing
and measure backlash at outer edge of ring gear.
Backlash should be 0.1-0.2 mm (0,004-0.008 in ),
Change backlash by moving shims (32 or 39) from one
side to the other, without changing total shim thick-
ness.
To check mesh position, coat teeth of ring gear with
red lead or equivalent and turn marked teeth of ring
gear across pinion. Check marked teeth of ring gear
to determine where pinion teeth are contacting. Refer
to Fig. 126 for correct mesh pattern. If mesh position
is incorrect, but backlash is correct, change the thick-
ness of shims (24—Fig, 124). If shims are added, bevel
pinion will be moved forward and if shims (24) are
removed pinion will be pushed toward center of ring
gear. Backlash of bevel gears will be changed and
Fig. 126—Bevei pinion shouid contact center of ring gear must be readjusted if pinion is moved.
teeth as shown in center at (A). Remainder of assembly is reverse of removal pro-
cedure.
grease while assembling. Install left axle housing
using a new gasket, then push the differential and 1020 Standard Models
right side bearing (38) to left making sure that bear-
ings are seated fully to the left. Install remaining 136. R&R AND OVERHAUL. To remove the dif-
shims (39), thrust washer (40) and right axle housing ferential assembly, remove bevel pinion shaft as out-
using new gasket. lined in paragraph 99. Ring gear (36—Fig. 127) can

Fig. 127^Expioded view of bevei drive

and differentiai for 1020 Standard
models.
8. Nut (left hand threads)
9. Shift collar
10. Hub
11. Creeper gear
12. Roller bearing
13. Inner race
14. Front-wheel-drive gear
15. Spacer (2WD models)
16. Bearing cup & cone
17. Shims (0.1, 0.15, 0.2 &
1.0 mm thick)
18. Bearing spacer
19. Bearing cup & cone
20. Thrust washer (3.0, 3.1
3.2, 3.3, 3.4, 3.5 & 3.6
mm thick)
21. Bevel pinion shaft
22. Thrust washer
{82 x 9 9 x 3 mm)
23. Shims (82x99 0.1,
0.15, 0.2 & 0.5 mm)
24. Carrier bearing cup
& cone
25. Thrust washer (68 x
8 4 x 3 mm)
26. Shims (68 x 84 x 0.1 , 0.15, 31. Side gear (2 used) 37. Roll pins 43. "O" rings
0.20 & 0.5 mm) 32. Differential pinion shaft 38. Differential lock pedal 44, Shaft & inner levt r
27. Carrier bearing cup & cone 33. Thrust washer (2 used) 39. Snap ring 45. Link
28. Differential carrier 34. Differential pinion (2 used) 40. Washer 46. Pivot shaft
29. Roller bearing (2 used) 35. Roll pin 41. Fitting 47. Plug
30. Thrust washer (2 used) 36. Ring gear 42. "O"ring 48. Differential lock fork

84
 MODELS 1010 & 1020 Paragraphs 137-139
be unbolted and removed if renewal is required. Ring refer to paragraph 99 and select correct thickness of
gear and bevel pinion (21) are available only as a shims (17). Install bevel pinion shaft as outlined in
matched set. paragraph 99 using selected shims (17) and a thrust
To disassemble differential, drive pin (35) from washer at (20). |
shaft (32), then remove shaft (32). Turn side gear Install differential, reversing removal procedure,
until gears (34) and thrust washers (33) can be re- with sufficient shims (23) on left side to provide some
moved. Side gears (31) will slide from bushings (29). bevel gear backlash. Shims can be held in place with
Reassemble by reversing disassembly procedure, grease while assembling. Install left axle housing
Degrease threaded holes in ring gear and attaching using a new gasket, then push the differential and
screws, then coat threads with "Loctite 609" or right side bearing (27) to left making sure that bear-
equivalent. Tighten ring gear retaining screws to ings are seated fully to the left. Install remaining
49-59 N.m (36-43 ft.-lbs.) torque, shims (26), thrust washer (25) and right axle housing
using new gasket. 1
137. When installing, adjust carrier bearings (24
To check backlash between bevel pinion (21) and
and 27—Fig. 127) by changing the total thickness of
ring gear (36), mount dial indicator on center housing
shims (23 and 26) and thrust washers (22 and 25).
and measure backlash at outer edge of ring gear.
Correct thickness of shims (23 and 26) will provide
Backlash should be 0.1-0,2 mm (0.004-0.008 in.).
0,01-0.05 mm (0,0004-0.0020 in,) preload with thrust
Change backlash by moving shims (23 or 26) from one
washer (22 and 25) installed. Backlash between bevel
side to the other, without changing total shim thick-
pinion (21) and ring gear (36) is changed by moving
ness.
shims (23 or 26) from one side to the other.
To determine correct total thickness of shims (23 To check mesh position, coat teeth of ring gear with
and 26), position differential assembly in center hous- red lead or equivalent and turn marked teeth of ring
ing with thrust washer (22) and one shim (23) on left gear across pinion. Check marked teeth of ring gear
side. Shims can be held in place with grease while to determine where pinion teeth are contacting. Refer
assembling. Install washers and nuts on the studs to Fig. 126 for correct mesh pattern. If mesh position
which retain left axle housing to hold the thrust is incorrect, but backlash is correct, change the thick-
washer (22) flush with center housing machined sur- ness of thrust washer (20—Fig. 127). If thicker
face, then push the differential and right side bearing washer is installed, bevel pinion will be moved to rear,
(27) to left making sure that bearings are seated fully toward center of ring gear. If thinner washer is in-
to the left. Measure depth of right side bearing (27) stalled, pinion will be moved toward front, away from
outer race as shown in Fig. 123, Subtract thickness center of ring gear. Backlash of bevel gears will be
of right side thrust washer (25—Fig. 127) and two changed and must be readjusted if pinion is moved.
side gaskets (0.8 mm or 0,030 in.) from the measured Remainder of assembly is reverse of removal pro-
depth to determine the correct thickness of shims to cedure.
install. Add sufficient thickness of shims to preload
carrier bearings with thrust washer (25) and axle
housing gaskets installed. Thrust washers (22 and 1020 Hydro Models
25) should always be installed outside of shims (23
and 26). Nominal thickness of thrust washers is 3.0 139. R&R AND OVERHAUL. The differential can
mm (0,118 in.), but washers used should be meas- be removed after removing both rear axle assemblies
ured. Shims (23 and 26) can be moved from side to and the differential lock mechanism. Slide differen-
side as required to adjust backlash of bevel pinion and tial to right until bearing is out of housing bore, turn
ring gear after correct total thickness is determined. differential until flats of carrier align with notch in
After the correct total thickness of shims has been center housing, then lower differential and remove
selected, set the selected shims and thrust washers from final drive opening. Ring gear (49—Fig. 128) and
aside and install the bevel pinion shaft (21). Refer to bevel pinion (20) are available only as a matched set.
paragraph 99 for installation of bevel pinion and Refer to paragraph 117 for removal of bevel pinion
selection of shims (17). Refer to paragraph 138 to set shaft.
bevel gear backlash and mesh position. To disassemble differential, drive pin (48) from
shaft (45), then remove shaft (45). Turn side gear
138. Thickness of thrust washer (20—Fig, 127) until gears (47) and thrust washers (46) can be re-
controls the mesh position of bevel pinion (21) and moved. Side gears (44) will slide from bushings (42).
original thickness can be considered correct unless Reassemble by reversing disassembly procedure.
case, bevel gears or bearings (16 and 19) are changed. Degrease threaded holes in ring gear and attaching
If necessary to select correct thickness of thrust screws, then coat threads with "Loctite 609" or
washer (20), first select correct total thickness of equivalent. Tighten ring gear retaining screws to
shims (23 and 26) as described in paragraph 137 and 49-58.8 N.m (36.1-43.4 ft.-lbs.) torque.

85
Paragraph 140 MASSEY-FERGUSON

41

68

Fia. 128—Expioded view of rear axie center housing, bevei gears and differentiai for 1020 Hydro modeis.
47. Differential pinion
6. Nut (2 used)
7. Spacer (two-wheel drive) 17. Bearing spacer 38. Thrust washer
18. Taper roller bearing (68 X 84 X 3 mm) 48. Roll pin
8. Front-wheel-drive gear 49. Ring gear
(37 teeth) 19. Thrust washer (3.0, 3.1, 39. Shims (68x84x0.1,
3.2, 3.3, 3.4, 3.5 or 0.15, 0.20 & 0.5 mm) 60. Roll pins
9. Bushing (same as 14) 61. Differential lock pedal
10. High range gear 3.6 mm thick) 40. Carrier bearing cup
20. Bevel pinion shaft & cone 62. Snap ring
11. Hub 63. Washer
12. Sliding gear 35. Thrust washer (82 x 41. Differential carrier
99 X 3 mm) 42. Roller bearing (2 used) 64. "O" rings
13. Low range gear 65. Shaft & inner lei^er
14. Bushing (same as 9) 36. Shims (82x99x0.1, 43. Thrust washer (2 used)
15. Taper roller bearing 0.15,0.2 & 0.5 mm) 44. Side gear (2 used) 66. Link
16. Shims(0.10, 0.15, 0.20 37. Carrier bearing cup 45. Differential pinion shaft 67. Differential lock fork
or 1.0 mm thick) & cone 46. Thrust washer (2 used) 68. Pivot shaft

140. When installing, adjust carrier bearings (37 face, then push the differential and left side bearing
and 40—Fig. 128) by changing the total thickness of (37) to right making sure that bearings are soated
shims (36 and 39) and thrust washers (35 and 38). fully to the right. Measure depth of left side bearing
Correct thickness of shims (36 and 39) will provide (37) outer race as shown in Fig. 129. Subtract thick-
0.01-0.05 mm (0.0004-0,0020 in.) preload with thrust ness of left side thrust washer (35—Fig. 128) and two
washer (35 and 38) installed. Backlash between bevel side gaskets (0.8 mm or 0,030 in.) from the measured
pinion (20) and ring gear (49) is changed by moving depth to determine the correct thickness of shims to
shims (36 or 39) from one side to the other. install. Add sufficient thickness of shims to preload
carrier bearings with thrust washer (35) and axle
To determine correct total thickness of shims (36 housing gaskets installed. Thrust washers (35 and
and 39), position differential assembly in center hous- 38) should always be installed outside of shims (36
ing with thrust washer (38) and one shim (39) on right and 39). Nominal thickness of thrust washers is 3 0
side. Shims can be held in place with grease while mm (0.118 in.), but washers used should be meas^
assembling. Install washers and nuts on the studs ured. Shims (36 and 39) can be moved from side
which retain right axle housing to hold the thrust side as required to adjust backlash of bevel pinion and
washer (38) flush with center housing machined sur- ring gear after correct total thickness is determined.

86
 MODELS 1010 & 1020 Paragraphs 141-142
paragraph 117 using selected shims (16) and a thrust
washer at (19).
Install differential, reversing removal procedure,
with sufficient shims (36) on left side to provide some
bevel gear backlash. Shims can be held in place with
grease while assembling. Install left axle housing
using a new gasket, then push the differential and
right side bearing (40) to left making sure that bear-
ings are seated fully to the left. Install remaining
shims (39), thrust washer (38) and right axle housing
using new gasket.
To check backlash between bevel pinion (20) and
ring gear (49), mount dial indicator on center housing
Fig. 129—Measure depth of right carrier bearing as shown
to determine correct totai thickness of shims (36 and
and measure backlash at outer edge of ring gear.
39—Fig. 128). Backlash should be 0,1-0.2 mm (0,004-0.008 in,).
Change backlash by moving shims (36 or 39) from one
side to the other, without changing total shim thick-
If pinion has been removed, set the selected shims ness.
and thrust washers aside and install the bevel pinion
shaft (20). Refer to paragraph 117 for installation of To check mesh position, coat teeth of ring gear with
bevel pinion and selection of shims (16), Refer to red lead or equivalent and turn marked teeth of ring
paragraph 141 to set bevel gear backlash and mesh gear across pinion. Check marked teeth of ring gear
position. to determine where pinion teeth are contacting. Refer
to Fig. 126 for correct mesh pattern. If mesh position
141. Thickness of thrust washer (19—Fig. 128) is incorrect, but backlash is correct, change the thick-
controls the mesh position of bevel pinion (20) and ness of thrust washer (19—Fig, 128). If thicker
original thickness can be considered correct unless washer is installed, bevel pinion will be moved to rear,
case, bevel gears or bearings (15 and 18) are changed. toward center of ring gear If thinner washer is in-
I If necessary to select correct thickness of thrust stalled, pinion will be moved toward front, away from
washer (19), first select correct total thickness of center of ring gear. Backlash of bevel gears will be
shims (36 and 39) as described in paragraph 140 and changed and must be readjusted if pinion is moved.
refer to paragraph 117 and select correct thickness of Remainder of assembly is reverse of removal pro-
shims (16). Install bevel pinion shaft as outlined in cedure.

FINAL DRIVE AND AXLES

AXLE, AXLE HOUSING AND FINAL DRIVE wheel-drive control handle from 1010 models so
equipped. Disconnect pto shift rod from 1010 Hydro
All Models models. It may be necessary to remove the hydraulic
filter block from 1010 Hydro models, so that pressure
142. REMOVE AND REINSTALL. To separate line can be lifted to clear the left axle housing. Check
the final drive axle assembly from the rear axle center all hydraulic lines, particularly on Hydro models, for
housing, first lower three-point hitch and drain fiuid clearance.
from transmission, rear axle center housing, rear On all models, support axle assembly using a
axles and hydraulic system by removing drain plug method which will allow assembly to be moved back
or plugs. Disconnect ground cable from battery, un- away from center housing. Remove screws and nuts
bolt and remove seat and fenders. Disconnect wires securing axle housing to center housing, then sepa-
to lights, then move wires out of the way. Block both rate the two assemblies. Axle housing may stick to
front wheels to prevent rolling and support tractor center housing, but be sure that all fasteners are
under rear axle center housing securely so that axle removed.
assemblies can be safely removed. Remove rear wheel
and tire assemblies and disconnect brake rods from NOTE: Be careful not to lose, damage or mix
brake actuating lever. thrust washers and shims, which adjust differential
carrier bearings and mesh position of bevel gears.
Unbolt and remove Roll Over Protection, if so Screws and washers can be temporarily installed to
equipped. Remove the double roll pins and four- hold thrust washers and shims in position whiie

87
Paragraph 142 (Cont.) MASSEY-FERGUSON

32
31
29
30
25
12 26
27.

Fig. 130—Exploded view of rear axle, final drive and

brakes for 1010 Standard models. Model 1010 Hydro
is similar.
1. Axle shaft 16. Snap ring
2. Dust seal 17. Brake drum
:i. Oil seal 18. Return springs
4. Snap ring 19. Brake shoes
5. Shim (0.4 & 0.6 20. Brake hacking plate
mm thick) 21. Snap ring
6. Bearing 22. "0" rings
7. Left axle housing 23. Actuating shaft & cam
8. Bearing 24. Snap ring
9. Final drive gear 25. Seal sleeve
10. Snap ring 26. Oil seal
11. Differential lock 27. Washer
coupling 29. Washer
12. Thrust washer 30. Bearing
13. Release spring 31. Final drive pinion
15. Brake cover 32. Snap ring

32 31

Fig. 131—Cross section of 1010 Stand-

ard differentiai, rear axies and brakes.
Hydro model is simitar. Refer to Fig 130
for iegend.

11 13

88
MODELS 1010 & 1020 Paragraph 143

Fig. 132—Exploded view of rear axie,

finai drive and brakes for 1020 Standard
modeis. Model 1020 Hydro Is similar.
1. Axle shaft 14. Lock coupling
2. Dust seal (right)
3. Oil seal 15. Brake cover
4. Snap ring 16. Snap ring
5. Shim (0.4 & 0.6 17. Brake drum
mm thick) 18. Return springs
6. Bearing 19. Brake shoes
7. Left axle housing 20. Brake backing
8. Bearing plate 26. Oil seal
9. Final drive gear 21. Snap ring 28. Snap ring
10. Snap ring 22. "0" Hngs 29. Thrust washer
11. Differential lock 23. Actuating shaft ( 3 0 x 4 2 x 2 mm)
coupling & cam 30. Bearing
12. Thrust washer 24. Snap ring 31. Final drive pinion
13. Release spring 25. Seal sleeve 32. Snap ring

axle housings are removed. Refer to (74, 79 and 143. OVERHAUL. Refer to preceding paragraph
80—Fig. 121) for 1010 Standard models. Refer to 142 and remove the axle and housing assembly. Refer
(32, 39 and 40—Fig. 124) for 1010 Hydro models.
Refer to (22,23,25 and 26—Fig. 127) for 1020 Stand- to Fig, 130 and Fig. 131 for exploded and cross-sec-
ard models. Refer to (35,36,38 and 39—Fig. 128) for tional views of rear axle, final drive and brakes typi-
1020 Hydro models. cal of 1010 models. Refer to Fig, 132 and Fig. 133 for
exploded and cross-sectional views of rear axle, final
drive and brakes typical of 1020 models.
When assembling, reverse removal procedure. Al- Remove snap ring (10—Fig, 130 or Fig. 132) and
ways use new gaskets and seals. Be sure that shims final drive gear (9), Axle (1) and inner bearing (8) can
(74 and 79—Fig. 121, 32 and 39—Fig. 124, 23 and 26 be removed toward inside. Axle outside bearing (6)
Fig, 127 or 36 and 39—Fig, 128) are not lost, damaged can be removed after removing outer seals (2 and 3)
or mixed (side to side), because these shims adjust and snap ring (4). Axial play of axle shaft (1) should
differential carrier bearings and mesh position of be 0.1-0.3 mm (0.004-0,012 in.) and is adjusted by
bevel gears. Shims can be held in place with grease varying number and thickness of shims (5).
while assembling. To remove the pinion and shaft (31), refer to para-
graph 145 and remove the brake assembly, including
Assembly is easier if left axle housing with sliding, the backing plate (20) and snap ring (24). On 1010
differential lock coupling (11—Fig. 130, Fig. 131 or models, remove inner snap ring (24—Fig, 130) from
Fig. 132) is installed, before installing right housing. pinion shaft. On 1020 models, pry out oil seal assem-
Install spring (13) with right axle and housing. On bly (25 and 26—Fig. 132) and remove snap ring (28)
1010 models, tighten axle housing retaining screws and thrust washer (29). On all models, bump pinion
and nuts to 49-54 N.m (36-39 ft.-lbs,) torque. On 1020 and shaft (31—Fig. 130 or 132) out of bearing (30)
models, tighten M12 retaining screws to 59-68 N.m toward the inside. Remove snap ring (32), then re-
(44-50 ft.-lbs.) torque and MIO retaining screws to move bearing (30) and oil seal assembly (1010 mod-
39-49 N.m (29-36 ft.-lbs.) torque. els) from housing. .

89
Paragraphs 144-146 MASSEY-FERGUSON

Fig. 133—Cross section of 1020 Standard

differentiai, rear axies and brakes. Hydro
modei is simiiar. Refer to Fig. 132 for
iegend.

11 13 14

BRAKES
ADJUST to Fig. 132 and Fig. 133 for brakes used on 1020
models. i
All Models Remove cover (15—Fig. 130 or Fig. 132) and saap
ring (16), then pull drum (17) from pinion shaft spli-
144. Brake pedals should have 20-30 mm (0.78- nes. Remainder of disassembly will depend upon
1.18 in.) travel and pedals should align when equal extent of repair, but will be evident after reference to
pressure is applied to the two pedals. Adjust by short- appropriate illustrations. Refer to the following speci-
ening or lengthening actuating rods. Loosen locknut fications.
and turn the adjustment turnbuckie located in the Minimum shoe thickness 2.0 mm (0.0787 in.)
middle of each rod. Maximum drum diameter 122 mm (4.803 in.)
Tighten nuts securing brake backing plate (20) to
R&R AND OVERHAUL axle housing using a new gasket to 20-24 N.m (15-18
ft.-lbs.) torque. Tighten screws retaining cover (15—
All Models Fig. 130) to 20-24 N.m (15-18 ft.-lbs,) torque on 1010
models. Tighten screws retaining cover (15—Fig.
145. Service to the brakes is more easily accom- 132) to 4,9-9,8 N.m (44-86 in.-lbs.) torque on 1020
plished if wheel and fender are removed. Refer to Fig. models. Adjust the brakes as outlined in paragraph
130 and Fig. 131 for brakes used on 1010 models or 144 after assembly is complete.

POWER TAKE-OFF
REAR PTO and drain oil from transmission and axle center hous-
ing. Unbolt and remove bearing and seal retainer (1)
from around output shaft, then withdraw output
1010 Standard Models shaft (9) and bearing (7) from center housing. Tighten
146, R&R A^fD OVERHAUL. To remove the rear stud nuts attaching retainer to 15-ld N.m (11-14
pto output shaft (9—Fig. 134), first lower the lift arms ft.-lbs.) torque.

90
MODELS 1010 & 1020 Paragraphs 147-150
148. REAR DRIVE SHAFT. To remove the pto rear
drive shaft (5—Fig. 135), first refer to paragraph 168
and remove the hydraulic lift cover. Lower the lift
arms and drain oil from transmission and center
housing. Unbolt and remove bearing and seal re-
tainer (1) from around the output shaft. Remove snap
ring (2) and thrust washer (3). Move pto control lever
to rear position, push shaft (5) to the rear as far as
possible and remove bearing (4). Remove snap ring
(10), coupling (9) and dampener washer (8) from front
of shaft. Tip shaft (5) and bearing (7) up and remove
through top opening.
Reinstall by reversing removal procedure. Install
new seal before installing bearing (4) and seal re-
tainer (1).
I
Fig, 134^R0ar pto shaft (9) of 1010 Standard models is
splined to front shaft (E^FIg. 59). 149. FRONT DRIVE SHAFT. To remove the pto
1. Retainer front drive shaft (16—Fig. 135), first remove the rear
2. Gasket 6. Thrust washer drive shaft as outlined in paragraph 148. Remove
3. Oil seal 7. Ball bearing snap ring (11) and coupling (12) from rear of shaft,
4. Seal sleeve 8, Snap ring then withdraw shaft from rear opening. Coupling (17)
5. Snap ring 9. Pto shaft
will remain in range transmission top shaft (15—Fig.
79). I
Refer to paragraph 68 for service or removal of pto
drive (front) shaft, shift fork and linkage. 150. PTO SHIFT FORK. Refer to paragraph 148
and remove the pto rear dr *ve shaft. Refer to Fig, 136.
1010 Hydro Models Remove safety switch (19) and bracket, disconnect
linkage (20), and drive roll pins from external lever
147, R&R AND OVERHAUL. Tb remove the rear (21). Remove lever (21) from shaft and lock screw (22)
pto output shaft, it is first necessary to remove the from side of housing. Pull shift rail (23—Fig. 137) out
hydraulic lift cover as outlined in paragraph 168, the toward rear and lift shift fork (24) from housing.
pto rear drive shaft and the shift linkage. Refer to the Shaft and inner lever (25) can be removed toward
following paragraphs for specific service procedures. inside.

Fig, 1Z5^Exploded view of pto top (drive)

shafts for 1010 Hydro models.
14
1. Retainer 10. Snap ring 15
2. Snap ring 11. Snap ring
3. Thrust washer 12. Coupling
(20 X 30 X 2 mm) 13. Spring
4. Ball bearing 14. Thrust washer
5. Rear drive shaft (25 X 34 X 2 mm)
6. Bushing 15. Snap ring
1. Ball bearing 16. Front drive shaft
8. Dampener washer 17. Coupling
9. Coupling 18. Roll pins

17

91
Paragraphs 151-153 MASSEY-FERGUSON

When reassembling, install new "O" rings on shaft

20 (25) and rail (23).

151. PTO REAR OUTPUT SHAFT. Remove the

hydraulic lift cover as outlined in paragraph 168, the
rear drive shaft as outlined in paragraph 148 and the
pto shift fork as outlined in paragraph 150. Remove
snap ring (26—Fig. 138), pull output shaft (38) out
toward rear and withdraw gears (35 and 36) out
through the top. Remove bearing (29), thrust washers
(27 and 30) and shims (28). Shims (28) are installed
to limit end play of output shaft.
Installation is reverse of disassembly. Add siifti-
cient thickness of shims (28) to limit end play of
output shaft to 0.1-0.3 mm (0.003-0.011 in.).
Fig. 136—View of pto shift iinkage and safety switch for
1010 Hydro modeis.
1020 Standard Models
152. R&R AND OVERHAUL. To remove the rear
pto output shaft (9—Fig. 139), first lower the lift arms
and drain oil from transmission and axle center hous-
ing. Unbolt and remove bearing and seal retainer (1)
from around output shaft, then withdraw output
shaft (9) and bearing (7) from center housing. Tighten
stud nuts attaching retainer to 15-19 N.m (11-14
ft.-lbs.) torque.
Refer to paragraph 96 for service or removal of pto
drive (front) shaft, shift fork and linkage.

1020 Hydro Models

153. R&R AND OVERHAUL. To remove the rear
Fig. 137—View of pto shift fork (24), raii (23) and shaft (25) pto output shaft (9—Fig. 140), it is first necessary to
for 1010 Hydro modeis. remove the hydraulic lift cover as outlined in para-

Fig. 138—Expioded view of pto output shaft

(38), gears and related parts for 1010 Hydro
models. Refer to Fig, 79 for cross section.
1. Retainer 35. Pto gear
26, Snap ring (20-40 teeth)
27. Thrust washer 36. Pto gear
\ (30 X 42 X 2 mm) (20 teeth)
28. Shim (30 X 46 X 37. Bushing
0.3, 0.4 & 0.5 mm) 38. Output shall
29. Ball bearing 39. Drive key
30. Thrust washer 40. Ball bearing
31. Bushing (30 X 35 41. Thrust washer
X 27 mm) (35 X 45 X 2 mm)
32. Needle bearing 42. Snap ring
33. Hub 43. Seal sleeve
34. hub 44. Oil seal

92
 MODELS 1010 & 1020 Paragraphs 154-157

Fig. 139—Rear pto shaft (9) of 1020 Standard models is

splined to coupiing (72—Fig. 86),

1. Retainer 7. Ball bearing

2. Gasket 8. Snap ring
3. Oil seal 9. Pto shaft
4. Seal sleeve 10. Snap ring (same as 11)
5. Snap ring 11. Snap ring (same as 10)
6. Thrust washer (35.5 x 2 mm) 12. Snap ring

graph 168, the pto rear drive shaft and the shift snap ring (5) and hub (6) from front of shaft. Tip shaft
linkage. Refer to the following paragraphs for specific (9) and bearing (7) up and remove through top open-
service procedures. ing.
Reinstall by reversing disassembly procedure. In-
154. REAR DRIVE SHAFT. To remove the pto rear stall new seal before installing bearing (10) and seal
' drive shaft (9—Fig, 141), first refer to paragraph 168 retainer (14). i
and remove the hydraulic lift cover. Lower the lift
arms and drain oil from transmission and center 155. FRONT DRIVE SHAFT. To remove the pto
housing. Unbolt and remove bearing and seal re- front drive shaft (1—Fig, 141), first remove the hy-
tainer (14) from around the output shaft. Remove drostatic unit as outlined in paragraph 109 and para-
snap ring (12) and thrust washer (11). Move pto graph 110, then remove the pto rear drive shaft as
control lever to rear position, push shaft (9) to the rear outlined in paragraph 154. Remove snap ring (4—
as far as possible and remove bearing (10). Remove Fig. 141) and overrunning clutch (3) from rear of
shaft, then withdraw shaft from front opening.

156. PTO SHIFT FORK. Refer to paragraph 154

and remove the pto rear drive shaft. Remove safety
switch (2—Fig. 142) and bracket, disconnect linkage,
and drive roll pin (1) from external lever. Remove
external lever from shaft and lock screw (3) from side
of housing. Pull shift rail (4) out toward rear and lift
shift fork (6) from housing. Shaft and inner lever (5)
can be removed toward inside.
When reassembling, install new "0" rings on shaft
(5) and on rail (4).
t
157. PTO REAR OUTPUT SHAFT Remove the
hydraulic lift cover as outlined in paragraph 168, the
rear drive shaft as outlined in paragraph 154 and the
pto shift fork as outlined in paragraph 156, Remove
snap ring (15—Fig. 143) and thrust washer (16). Pull
output shaft (20) out toward rear and withdraw gears
Fig, 140—Cross sectionai view of pto for 1020 Hydro (23 and 25) out through the top. .
modeis. Refer to Fig, 141 for legend. Installation is reverse of disassembly.

93
Paragraph 157 (Cont.) MASSEY-FERGUSON

Fig, 141—Exploded view of pto top

shaft for 1020 Hydro models.
1. Pto top shaft
2. Snap ring 10. Ball beariag
3. Overrunning 11. Thrust washer
clutch (25 X 34 X
4. Snap ring 2 mm)
5, Snap ring 12. Snap ring
6. Hub 13. Gasket
7. Ball bearing 14. Rear cover
8. Bushing and retainer
9. Rear shaft 21. Coupling
& gears 22. Roll pins

Fig. 142—Views of pto externai shift

iinkage (on ieft) and internai iever and
shift fork (on right) for 1020 Hydro mod-
eis.
1. Roll pin 4. Shift rail
2. Safety switch 5. Shaft & inner lever
3. Lock screw 6. Shift fork

14

Fig. 143—Exploded view of pto output

shaft (20) and reiated parts for 1020 Hy-
dro modeis.
13. Gasket 23. Sliding gear
31 14. Rear cover 24. Hub
30 and retainer 25. Driven gear
29
15. Snap ring 26. Bushing
16. Thrust washer 27. Thrust washer
(35 X 45 X 2 mm) 28. Ball bearing
17. Ball bearing 29. Thrust washer
18. Bushing (35 X 45 X 2 mm)
19. Hub 30. Snap ring
20. Output shaft 31. Oil seal

94
MODELS 1010 & 1020 Paragraphs 158-160

38
37
36
35
Fig, 144—Expioded view of mid pto typicai of 1010 Hydro 34
33
and 1020 Hydro modeis. Refer to Fig. 79 or Fig. 116 for 32
cross-sectionai view.
32. Snap ring 46. Idler gear
33. Ball bearing 47. Thrust washer
34. Drive gear (20.5 X 33 X 3 mm)
35. Thrust washer 48. Gasket
(25 X 40 X 0.4, 0.6 49. "O" ring
or 1 mm) 50. Idler shaft
36. Snap ring 51. Lock screw
37. Ball bearing 52. Lockwasher
38. Drive shaft 53. Collar
39. Driven gear 54. Plug
40. Snap ring 55. Drain plug
41. Ball bearing 56. Ball bearing
42. Snap ring 57. Mid pto output shaft
43. Cup plug 58. Ball bearing
44. Washer (22 x 38 X 59. Snap ring
3 mm) 60. Oil seal
45. Roller bearing 61. Cover

61

MID PTO Idler gear can be removed after removing lock screw
(51) and idler shaft (50).
1010 Hydro and 1020 Hydro Models Reassemble using new "0" ring (49) and oil seal
(60) by reversing disassembly procedures.
158, The mid pto case assembly with output shaft
can be unbolted and removed from under side of rear 160, The mid pto driven gear (39—Fig. 144) is
axle center housing. Oil contained in the transmis- driven by sliding gear (35—Fig. 138 or 23—Fig. 143).
sion and rear axle center housings should be drained
before removing the mid pto case. Refer to paragraph To remove the mid pto drive shaft (38—Fig. 144)
159 for disassembly and overhaul of the removed mid and related gears and bearings, first remove pto rear
pto case. Refer to paragraph 160 for removal of mid drive shaft and rear output shaft as outlined in para-
pto drive shaft. graphs 148 and 151 (1010 Hydro models) or para-
graphs 154 and 157 (1020 Hydro models). Remove
159. To remove the mid pto output shaft, remove mid pto case as outlined in paragraph 158, Remove
cover (61—Fig. 144) and seal (60) and snap ring (59). plug (43) and snap ring (42). Insert a rod through
Pull pto shaft (57) and bearing (56) from housing. opening for mid pto case and tap gear (34) and shaft

95
Paragraphs 161-163 MASSEY-FERGUSON

Fig. 145—Exploded view of the front pto

available on all models.
1. Flexible coupling 9. Spacer
2. Plate 10. Spacer
3. Drive shaft 11. Engagement coil
4. Drive key 12. Rotor
5. Ball bearing 13. Armature assy.
(same as 7) 14. Brake cover
6. Support assy. 15. Pulley
7. Ball bearing 16. Shield
(same as 5) 17. Shoulder washer
8. Snap ring 18. Screw

(38) rearward about 30 mm (1 V4 in.) to provide FRONT PTO

clearance for removal of bearing (33) and gear (34).
Remove thrust washer (35) and snap ring (36), then All Models
pull drive shaft (38) rearward and remove bearing
(37) and gear (39) through top opening of housing. 161, The front pto (Fig. 145) is driven by the engine
Remove snap ring (40) and bearing (41) from rear of crankshaft pulley. The pto electric clutch is engaged
shaft. when coil (11) is energized, magnetizing rotor (12),
which engages the armature assembly (13). Pulley I
When reinstalhng shaft and components, select (15) is attached to the armature. If pto cannon be
proper thickness shim (35) to limit end play of gear engaged, first check to be sure that electrical switch
(34) to less than 0.4 mm (0.016 in.). is working correctly and properly energizes coil (11).

HYDRAULIC LIFT SYSTEM

162, The hydraulic system basically consists of an stalled in the system. During normal service, fluid
oil reservoir (or sump), hydraulic pump, control valve, and filters should be changed every 200 hours of
lift cylinder and lift links. operation. Lower lift arms before draining oil. Oil is
drained by removing plug located in the bottom oi'the
FLUID AND FILTERS rear axle center housing of all models. The drain plug
of 1010 Standard models is located at rear of housing
and drawbar must be removed before drain plug.
All Models Models with standard transmission have only one
filter. Model 1010 Hydro is equipped with one hydrau-
163. Oil used as operating fluid for the hydraulic lic system suction filter (left side toward front), one
lift system is also used for the transmission, final hydrostatic suction filter (left side toward rear) and
drive and rear axles. The transmission housing, rear one hydrostatic pressure filter (located on right side).
axle center housing and axle housings are used as the Model 1020 Hydro is equipped with one suction filter
reservoir to contain the hydraulic system operating (smaller and lower) and one hydrostatic pressure
fluid. Oil level should be maintained between the filter (larger and above). On all models, all filters
marks on the dipstick. The dipstick and fill plug are should always be renewed when oil is drained and
located on top of transmission in front of operator's reservoir is filled with new oil.
seat.
The manufacturer recommends that fluid and fil-
ters be changed after the first 50 hours of operation NOTE: The pressure filter and suction filters are
if new or rebuilt major components have been in- different. Be sure that proper filters are installed.

96
 MODELS 1010 & 1020 Paragraphs 164-166
Recommended lubricant for models with hydro- Remove retaining screws and washers, tap cover
static transmission is "Massey-Ferguson Permatran (16—Fig. 146) lightly, then carefully lift cover from
III" fluid. Recommended lubricant for models with pump, Mark teeth of gears (9 and 10) to assist align-
standard gear transmission is "Massey-Ferguson ment when reassembling, then carefully disassemble
Permatran III" fluid or SAE 80W GL-3 or GL-4 oil. pump. Clean all parts carefully and inspect each part
Capacity is approximately 17 L (18 quarts) for all for wear or damage.
1010 models, 23 L (24.3 quarts) for 1020 Standard
models, or 26 L (27.5 quarts) for 1020 Hydro models. Lubricate seal (2) before installing in mounting
Some oil may remain in system when draining. After flange (3), then install snap ring (1). Lubricate bal-
refilling reservoir, allow engine to run at idle while ance seal (5) and install in mounting flange, then
operating hydraulic controls and raising and lower- install the 0.5 mm (0.020 in.) inner gasket (6), fol-
ing lift arms. Stop engine, lower three-point hitch, lowed by 1,5 mm (0.060 in.) thick outer gasket (7).
allow sufficient time for oil level to stabilize between Balance seal and gaskets can be pressed into mount-
compartments and check fluid level. Tractor should ing flange together using a flat board and vise. Install
be on level surface when checking fluid level. dowel pin (12) and gear plate (11), then install side
plate (8) with copper side out. Lubricate side plate
and gears, then install gears (9 and 10) with marks
HYDRAULIC PUMP (made prior to removal) aligned. Coat side plate (13)
All Models with oil and install over gears with copper side down.
Stick new "O" ring (15) in groove of cover (16), lubri-
164, REMOVE AND REINSTALL. To remove the cate bushings (14) and install cover. Tighten the four
engine mounted, gear type hydraulic pump, position cover retaining screws to 35-39 N-m (26-28 ft.-lbs.)
drain pan under pump and remove the banjo bolt torque. Check to be sure the pump turns smoothly. If
from pump inlet fitting. Remove "O" rings from inlet pump drive shaft can not be turned smoothly, disas-
fitting and detach pressure line from pump. Remove semble and correct cause before installing. It is sug-
the two screws attaching hydraulic pump to timing gested that new or rebuilt pump be operated without
gear housing, then carefully slide pump to rear. Re- load, with engine idling, for about 30 minutes, before
move "O" ring or gasket from front of pump or rear of increase speed and load. During this break-in, check
timing gear housing. pump periodically for any abnormally high tempera-
I Installation is reverse of removal procedure. After ture.
installing new or rebuilt pump, it is suggested to
operate the pump without load, with engine idling, RELIEF VALVE
for about 30 minutes, then increase speed and load.
During this break-in, check pump periodically for any 1010 Standard Models I
abnormally high temperature.
166, TEST AND ADJUST. The hydraulic pressure
165, OVERHAUL, Clean the exterior of removed relief valve is located on the left side of the lift cover
pump before disassembling. Secure drive shaft in a on 1010 Standard models. To test the hydraulic relief
soft jawed vise, with pump mounting flange down. pressure on these models, lower lift arms, remove

Fig, 146—Expioded view of hydraulic

pump. Inlet (suction) side of gear piate
(11) shouid be toward top as shown.
1. Snap ring 8. Side plate
2. Oil seal 9. Driven gear
3. Pump mounting 10. Drive gear
flange & shaft
4. Bushings 11. Oear plate
5. Balance seal 12. Dowel pin
6. Inner gasket 13. Side plate
(0.5 mm) 14. Bushings
7. Outer gasket 15. "O" ring seal
(1.5 mm) 16. Cover
15 n

97
Paragraph 167 MASSEY-FERGUSON

Fig, 150—To check hydrauiic system reiief pressure on

Fig, 147—To check hydraulic system relief pressure on 1010 Hydro and all 1020 modeis, connect test gauge as
1010 Standard models, connect test gauge as shown. shown. Refer to text.
Refer to text.

Fig, 151—View of stop boit for 1010 Hydro and aii 1020^
models.

plug from relief valve housing and connect a suitable

pressure gauge as shown in Fig. 147. Loosen locknut
on lift height stop bolt (Fig. 148) so that stop bolt can
be adjusted to increase rearward movement of posi-
Fig, 148—View of stop boit for 1010 Standard models. tion control lever. Start engine and operate at high
rpm. Raise hitch fully until relief valve opens (open-
ing can be heard), then observe pressure on gauge.
Lower hitch and shut off engine. Pressure should be
13,928-14,411 kPa (2020-2090 psi). If pressure is in-
correct, remove plug (1—Fig. 149) and vary the num-
ber and thickness of shims (3). Pressure is changed
about 1379 kPa (200 psi) for each 1 mm (0.040 in.)
change in thickness of shims.
Screws attaching relief valve to lift cover should be
tightened to 13-20 N.m (10-15 ft.-lbs,) torque.

1010 Hydro and All 1020 Models

167. The hydraulic pressure relief valve is located
on the right side of the lift cover on 1010 Hydro and
all 1020 models. To test the hydraulic relief pressure
on these models, lower lift arms, remove plug from
fig^ 149—Exploded view of hydraulic pressure reiief valve cylinder end cover and connect a suitable pressure
for 1010 Standard models. gauge as shown in Fig. 150. Loosen locknut on stop
1. Plug 5. Relief valve bolt (Fig. 151) so that stop bolt can be adjusted to
2. "O" ring 6. Valve seat
7. Housing increase rearward movement of position control lever.
3. Shims
4. Spring 8. Plug Start engine and operate at high rpm. Raise Idtch

98
 MODELS 1010 & 1020 Paragraph 168
fully until relief valve opens (opening can be heard),
then observe pressure on gauge. Lower hitch and
shut off engine. Pressure should be 13,928-14,411
kPa (2020-2090 psi). If pressure is incorrect, remove
plug (1—Fig. 152) and vary the number and thickness
of shims (3). Pressure is changed about 1379 kPa (200
psi) for each 1 mm (0.040 in.) change in thickness of
shims.
Screws attaching relief valve to lift cover should be
tightened to 13-20 N.m (10-15 ft.-lbs.) torque.

LIFT COVER
All Models
3
Fig, 152—Exploded view of hydrauiic pressure relief vaive 168. REMOVE AND REINSTALL. To remove the
for 1010 Hydro and all 1020 models.
hydraulic lift cover, first remove the seat assembly.
1. Plug
2. "O" ring 5. Relief valve Remove the rear fenders, back panel, floor, foot
3. Shims 6. Valve seat guards and center cover. Remove roll pin (37—Fig.
4. Spring 7. Housing 153) attaching lever shaft to the control shaft (45),

35

Fig, 153—Exploded view of 1020 lift cover,

I controi iinkage, cyiinder and iift arms.
Other modeis are simiiar. 36
1. Lowering rate 36. Quadrant
adjustment knob 37. Roll pin
2. Pin 38. Relief valve
3. Snap ring 39. "0" rings
4. Washer 40. Nuts
5. Lowering rate 41. Thrust washer
adjustment screw (1 mm)
6. Plug 42. "0" ring
7. "0" ring 43. Thrust washer
8. Cover (1 or 2 mm)
9. Plug 44. Countersunk
10. "0" ring washers (2 used)
11. "O" ring 45. Control shaft
12. "0" ring 46. Link
13. Valve 47. Working link
14. Snap ring 48. Link guide
16. Lip packing 49. Control valve
17. Backup ring turnbuckie
18. Piston 50. "0" rings
19. "0" ring 51. Control valve
20. Piston rod
21. Lever arm
22. Roll pin
23. Roll pin
24. Lift arm
25. Collar
26. "O" ring 13 4 69
27. Bushing
28. Lift cover y\ \\ I\ \\ \v^^
29. Bushing \\\ \^'
30. Lift arm shaft
31. "O"ring
32. Collar
33. Screw
34. Retainer
35. Control lever 2 5 7 10 13 14
Paragraphs 169-171 MASSEY-FERGUSON

then remove the external control lever, shaft, guide

and bracket. Unbolt and remove the upper link and
bracket. Detach the hydraulic delivery line from left
side of lift cover on 1010 models or from right side of
lift cover on 1020 models. Unbolt lift cover (28) from
center housing of all models, then carefully raise the
cover straight up, away from tractor.
Install lift cover by reversing removal procedure.
Tighten lift cover retaining screws to 61-70 N.m (45-
52 ft.-lbs.) torque. Tighten screws attaching the top
link mounting bracket to 103-118 N.m (76-86 ft.-lbs,)
torque,

169. OVERHAUL. Detach both ends of link (46—

Fig, 153), then detach upper end of working link guide
(48). Unbolt control valve (51) and remove control 12
13
valve, turnbuckie (49), and working link (47 and 48)
as an assembly.
Unbolt and remove cover (8), then remove roll pin
(2) and knob (1). Lowering rate control valve can be
disassembled after removing snap rings (3 and^ 14).
Move lift arms to lowered position and remove piston
(18), Lift arm shaft (30) can be driven out toward P/g, 154—Expioded view of controi vaives used,
right after removing lift arm from left. Lift arm (21) 1. Nut 11- "O" ring
2. Lock plate 12. Poppet valve
and push rod (20) can be disassembled, if necessary, 3. Plate 13. Spring
after removing them as an assembly. 4. Valve spool 14. "O" ring
On 1010 models, smaller (left) bushing (27) should 5. Valve body 15. Backup ring
6. Valve seat 16. Spring
be 12.5 mm (0.49 in.) below outer edge of bore in lift 7. Spring 17. Spring retaining plug j
cover Large (right side) bushing (29) should be 22.5 8. "0" ring 18. "O" ring
mm (0.88 in.) below outer edge of bore. 9. Plug 19. Plug
10. Plug 20. Nuts
On 1020 models, smaller (left) bushing (27) should
be 20.0 mm (0.78 in.) below outer edge of bore in lift
cover. Large (right side) bushing (29) should be 25.0 for nicks, burrs, scores or eroded valve seats. Be sure
mm (0,98 in.) below outer edge of bore. all parts are clean and lubricated when assembling.
On all models, align punch marks on lever arm (21) Plugs (9 and 10) should be tightened to 69-88 N.m
and both lift arms (24) with marked splines of shaft (51-65 ft,-lbs.) torque. Control valve seat (19) should
(30), Do not overtighten screws attaching turnbuckie be tightened to 49-58 N.m (36-43 ft,-lbs.) torque. Nut
(49) and link (46) to working link (47), Make sure that (1) should be tightened to 18-21 N.m (13-16 ft.-lbs.)
cotter pins are properly installed in bolts and castel- torque.
lated nuts. Tighten screws retaining control valve
(51) to 24-27 N.m (18-20 ft.-lbs.) torque. Tighten inner 171. ADJUSTMENT. With lift cover removed, spe-
nut (40) to 29 N.m (21 ft.-lbs.) torque and outer cial tool (MF 7548) can be used to set initial position
locknut (40) to 49 N.m (36 ft.-lbs.) torque. Tighten lift of nuts (20—Fig. 154), Make sure the nut (1) is
arm retaining screw (33) to 63-72 N.m (47-53 ft.-lbs.) tightened to 18-21 N.m (13-16 ft.-lbs.) torque, then
torque. lock with plate (2), Hold tool (T—Fig, 155) tightly
between plate (3) and body (5), then turn inside nut
CONTROL VALVE (20) onto threads of poppet valve (12) until nut is
0.3-0.6 mm (0,012-0,024 in.) from plate as showQ at
All Models (A—Fig, 155). Install and tighten outside nut (20) to
lock position of inside nut.
170. R&R AND OVERHAUL. The control valve With lift cover removed, but control valve installed
(51—Fig. 153) can be unbolted and removed after and linkage attached, move the control lever (.'55—
removing the lift cover from center housing as out- Fig. 153) to down position and move lift arms (24) to
lined in paragraph 168. The setting of nuts (20—Fig. fully lowered position. Measure and record distance
154) is critical to proper operation and initial position (B—Fig. 156) between face of valve body and split
should be marked before removal. Lift valve spool (4) between nuts as shown. Hold lift arms (24—Fig. 153)
is not available separately. Clean all parts and check in lowered position and move control lever (35) to-

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MODELS 1010 & 1020 Paragraph 172

1 35

20
A-Hr- Fig. 156—Measure neutral position using vernier calipers
Fig. 155—Setting position of nuts (20) requires use of as shown at (B). Refer to text. |
speciai tooi (T) available from manufacturer by number
7548 ciearance gauge.
lift arms fully. Locate stop (Fig. 148 or Fig. 151) on
right side of lift cover, loosen locknut and reposition
ward raise position until poppet just seats and plate stop so that relief valve opens when hitch is fully
(3—Fig. 156) just separates from inner nut (20). raised. Make sure that lift arms are fully raised, then
Again measure distance (B) and subtract the second scribe one line on one lift arm and a second mark on
measurement from the first. Difference should be lift cover, aligned with the first. Lower, then raise lift
0.3-0.9 mm (0.012-0.035 in.). If the difference be- arms until marks are separated 1.5 mm (0.062 in.)
tween the two measurements is incorrect, adjust and adjust stop (Fig. 148 or Fig. 151) to stop move-
length of control link (46—Fig. 153) by turning clevis ment of the control lever. i
which is connected to the vertical working link (47).
Reinstall lift cover, raise and lower lift arms several Adjust force necessary to move control lever (35—
times, then adjust external stop (Fig. 148 or Fig. 151) Fig. 153) by tightening or loosening inner nut (40). To
as follows. adjust, first loosen outer nut, then turn inner nut
until the required force is necessary to move control
172. Attach a small implement or a weight of ap- lever. Tighten the outer locknut (40) when adjust-
proximately 45 kg (100 lbs.) to the lift arms and raise ment is correct.

101