Groundsmaster 4100−DPage 6 − 12Axles, Planetaries, and Brakes
Rear Axle Assembly
1. Frame
2. Cap screw (6 used)
3. Flat washer
4. Bulkhead lock nut (2 used)
5. Washer
6. Thrust washer (thick)
7. Grease fitting (2 used)
8. Rear axle assembly
9. Thrust washer (thin)
10. Washer head screw
11. Pivot pin
12. Rear frame mount
13. Washer
14. Lock nut
15. Flange nut
16. Rear bumper
17. Hydraulic manifold (4WD)
18. Cap screw (2 used)
19. Flange nut
Figure 8
70 ft−lb maximum
(94 N−m maximum)
FRONT
RIGHT
1
2
3
4
6
7
8
9
10
11
12
16
17
13
14
5
15
18
19
Remove Rear Axle
1. Park machine on a level surface, lower cutting units,
stop engine, engage parking brake, and remove key
from the ignition switch.
CAUTION
When changing attachments, tires, or perform-
ing other service, use correct blocks, hoists,
and jacks. Make sure machine is parked on a
solid, level surface such as a concrete floor.
Prior to raising machine, remove any attach-
ments that may interfere with the safe and
proper raising of the machine. Always chock or
block wheels. Use jack stands or solid wood
blocks to support the raised machine. If the ma-
chine is not properly supported by blocks or
jack stands, the machine may move or fall,
which may result in personal injury.
2. Chock front wheels and jack up rear of machine (see
Jacking Instructions in Chapter 1 − Safety). Support ma-
chine with jack stands or solid wood blocks.
3. Drain oil from rear axle and axle gearbox (see Oper-
ator’s Manual).
4. Remove wheels from rear axle.
5. Remove hydraulic motor from rear axle assembly
(see Rear Axle Motor in Service and Repairs section of
Chapter 4 − Hydraulic System).
6. Remove steering cylinder from rear axle (see Steer-
ing Cylinder in Service and Repairs section of Chapter
4 − Hydraulic System).
7. Disconnect both steering cylinder hydraulic hoses
from hydraulic tubes at rear frame mount (Fig. 9). Re-
move bulkhead locknuts and washers that secure steer-
ing cylinder hydraulic tubes to rear frame mount.
Separate tubes from frame mount.
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