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Groundsmaster 4500--D/4700--DHydraulic System Page 4 -- 90
Rear Axle and Front Wheel Motor Service
1. Drive shaft
2. Backplate
3. Housing assembly
4. Rotating assembly
5. Cam plate insert
6. Retaining ring
7. Cap screw
8. Shaft seal (front motor only)
9. Retaining ring
10. Thrust race
11. O--ring
12. Valve plate
13. Thrust bearing
14. Roll pin
15. Roll pin
16. Bearing
17. Bearing
18. Washer
19. Plug
20. O--ring
Figure 71
15 to 18 ft--lb
(20to24N--m)
7
2
11
14
3
17
15
16
12
4
5
19
20
6
1
9
10
13
9
10
8
18
FRONT WHEEL MOTOR SHOWN
NOTE: Thefrontwheelmotors(showninFigure 71)are
identical.The rearaxlemotor issimilar to thefront wheel
motors.Service ofthe front andrear motorsrequiresthe
same procedure.
NOTE: The rear axle motor does not have a shaft seal
(item 8). The case drain from the rear axle motor pro-
vides lubrication for the input gear case of the rear axle.
NOTE: For service of the wheel motors, see the Eaton
Model 74318and 74348Piston Motors:Fixed Displace-
ment, Valve Plate Design Repair Information at the end
of this chapter.