Toro Groundsmaster 4500-D Series Service Manual page 370

Disassembly
Axles, Planetaries and Brakes: Service and Repairs
3
1
26
4
g276499
1. Spindle
2. Boot seal
3. Lip seal
4. Inner bearing cup (2)
5. Inner bearing cone (2)
6. Wheel stud (8)
7. Socket head screw (8)
8. Lock washer (8)
9. Housing
10. Dowel pin (4)
11. O−ring
12. Spacer
13. Locking washer
14. Lock nut
Note: The planetary drive assembly is best serviced with the planetary installed
to machine or the spindle firmly secured to a fixture or workbench. If the spindle
(item 1) needs to be removed from machine, see
(page 7–8).
1. Park machine on a level surface, stop engine and remove key from the
ignition switch.
2. Drain oil from planetary drive and brake assembly; refer to traction unit
Operator's Manual.
3. Chock rear wheels and jack up front of machine (see
(page 1–7)). Support machine with jack stands and remove rear wheel
assembly.
4. Remove retaining ring (16).
5. Remove end cap and thrust plate . Retrieve and discard O−ring from ring
gear bore.
6. Remove primary gear and drive shaft assembly (items 24−26).
2 7 8 13 11 10 14 28
5 12 6 9
Figure 237
15. Ring gear
16. Retaining ring
17. Plug
18. O−ring
19. Plug (2)
20. O−Ring (2)
21. End cap
22. Thrust plate
23. O−Ring
24. Retaining ring (2)
25. Primary gear
26. Drive shaft
27. Primary carrier asm
28. Secondary carrier asm
Page 7–12
27 15
24
16
22
19, 20
23
17, 18
25
21
Planetary Drive Assembly
Jacking Instructions
Groundsmaster ® 4500-D/4700-D
19245SL Rev A