Service Manual

Multi Pro 5800Chassis Page 9 − 20
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 Plane-
tary Drive Assembly in this chapter.
Disassembly
1. Park machine on a level surface, stop engine and re-
move key from the ignition switch.
2. Drain oil from planetary drive and brake assembly;
refer to traction unit Operator’s Manual.
3. Chock rear/front wheels and jack up front/rear of
machine (see Jacking Instructions in Chapter 1 − Safe-
ty). Support machine with jack stands and remove rear
wheel assembly.
4. Remove retaining ring (item 16).
5. Remove end cap and thrust plate. Retrieve and dis-
card O−ring from ring gear bore.
6. Remove primary gear and drive shaft assembly
(items 24−26).
7. Remove primary carrier and secondary carrier from
ring gear.
8. Bend the locking washer tab away from the lock nut.
Use a TMFS12 spanner socket to remove the 55 x 1.5
mm lock nut. Remove the locking washer and spacer.
Discard the locking washer.
9. Carefully remove housing and bearing cones from
spindle.
10.Remove and discard seals from housing.
11. If necessary, remove bearing cups from housing.
12.If wheel stud removal is necessary, use a press to re-
move the stud(s) from the housing.
13.If necessary, remove the ring gear from the housing:
NOTE: High strength thread locking compound was
used during assembly. It may be necessary to heat
the ring gear near the mounting screws to release
the screws.
A. Remove socket head screws (item 7) and lock
washers that secure the ring gear to the housing.
B. Remove the ring gear and retrieve the four (4)
dowel pins (item 10) from housing.
C. Remove the O−ring from the housing bore and
discard.
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
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
Figure 13
G248455
11
12
13 14 15
16
17, 18
19, 20
1
2
3
45 6
78
9
10
21
22
23
24
25
2728
26
Assembly
NOTE: Use new seals, O−rings and locking washer
when assembling the planetary drive.
1. Thoroughly clean parts in solvent and dry completely
after cleaning. Inspect parts for damage or excessive
wear and replace as necessary.
2. If any wheel studs were removed, use a press to
install new studs into housing. Make sure that stud
shoulder is fully pressed against housing surface.
3. If ring gear was removed from housing:
A. Fit four (4) dowel pins in housing.
B. Apply a light coat of grease to a new O−ring and
install it in the housing bore.
C. Apply high strength thread locking compound
and secure ring gear to housing with lock washers
and socket head screws. Tighten screws to 27 ft−lb
(37 N−m).