Rear Axle and Front Wheel Motor Service
15
to 18 ft--lb
FRONT WHEEL MOTOR SHOWN
(20 to 24 N--m)
1
7
9
2
13 10
10
9
11
18
8
6
19
20
14
15
16
12
4
5
3
17
Figure 71
1.
2.
3.
4.
5.
6.
7.
Drive shaft
8.
9.
10. Thrust race
11. O--ring
12. Valve plate
13. Thrust bearing
14. Roll pin
Shaft seal (front motor only)
Retaining ring
15. Roll pin
16. Bearing
17. Bearing
18. Washer
19. Plug
Backplate
Housing assembly
Rotating assembly
Cam plate insert
Retaining ring
Cap screw
20. O--ring
NOTE: Thefrontwheelmotors(showninFigure71)are
identical.Therearaxlemotor issimilar tothefrontwheel
motors. Service ofthe frontand rear motors requires the
same procedure.
NOTE: For service of the wheel motors, see the Eaton
Model 74318 and 74348 Piston Motors: Fixed Displace-
ment, Valve Plate Design Repair Information at the end
of this chapter.
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.
Hydraulic System
Page 4 -- 90
Groundsmaster 4500--D/4700--D
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