Toro Groundsmaster 3500 30807, Service Manual

Page: 158 / 283

Groundsmaster 3500 Hydraulic System Page 5 − 100
Wheel Motor Service
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
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 20. Vane
21. Stator
22. Manifold
23. Commutator ring
24. End cover
25. Ball
26. Spring
27. Plug
28. O–ring
Figure 64
1
2
3
4
5
6
7
8
9
10
16
17
18
19
20
21
22
23
24
11
12
13
14
15
8
25
26
28
27
27
28
45 to 55 ft−lb
(60 to 76 N−m)
NOTE: The wheel motor illustrated (Fig. 64) is the rear
motor. The three wheel motors are identical in construc-
tion except for some minor differences. The front wheel
motors have a 12 cu. In (195 cc) displacement while the
rear wheel motor has a 24.7 cu. In. (405 cc) displace-
ment. The right front and rear wheel motors have re-
verse timed manifolds, and the front left motor does not.
The end cover of the rear motor has a check valve con-
sisting 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 this chapter for information regarding the im-
portance of removing contamination from the
traction circuit.
NOTE: For repair of the wheel motors, see the Parker
Torqmotor
t
TC, TB, TE, TJ, TF, TG, TH and TL Series
Service Procedure at the end of this chapter.