Wheel Motor Service - Toro 30821 Service Manual

Wheel Motor Service

3
2
1
1. Dirt seal
2. Bearing
3. Housing
4. Back- up washer
5. Seal rings
6. Back- up washer
7. Inner seal
8. Thrust washer
9. Thrust bearing
10. Bearing
Note: The wheel motor illustrated in Figure 83 is the
rear motor. The three wheel motors are identical in
construction except for some minor differences. The
right front and rear wheel motors have reverse timed
manifolds, and the front left motor does not. The end
cover of the rear motor has a check valve consisting of
a ball and spring, and both front motors lack this feature.
IMPORTANT: If a wheel motor failure occurred, refer
to Traction Circuit (Closed Loop) Component Fail-
ure in the General Information section for informa-
tion regarding the importance of
contamination from the traction circuit.
Hydraulic System (Rev. G)
10
8
9
8
7
6
5
4
Figure 83
11. Coupling shaft
12. Thrust bearing
13. Drive link
14. Cap screw
15. Commutator seal
16. Commutator
17. Woodruff key
18. Wear plate
19. Rotor
removing
Page 4 - 74
13
12
11
16
17
22
21
20
19
18
20. Vane
21. Stator
22. Manifold
23. Commutator ring
24. End cover
25. Ball
26. Spring
27. Plug
28. O- ring
Note: For repair of the wheel motors, see the Ross
Torqmotor MG, MF, MP, MB, ME, and MJ Series Ser-
TM
vice Procedure at the end of this chapter.
45 to 55 ft- lb
(60 to 76 N- m)
14
15
24
28
27
23
Groundsmaster 3500- D
27
28
26
25