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Groundsmaster 4100--D Page 6 -- 11 Axles, Planetaries and Brakes
NOTE: Theplanetary wheeldrive assembly canbe ser-
viced with the planetary installed to machine. If the
spindle (item1)needs to be removed frommachine,see
Planetary Wheel Drive Assembly Removal in this sec-
tion.
Disassembly (Figs. 8 and 9)
1. If planetary wheel drive assembly is installed on ma-
chine:
A. Park machine on a level surface, lower cutting
decks, stop engine and remove key from the ignition
switch.
B. Drain oil from planetary wheel drive/brake as-
sembly.
C. Chock rear wheels and jack up front of machine
(see Jacking Instructions in Chapter 1 -- Safety).
Support machine with jack stands.
D. Remove front wheel assembly.
2. Remove retaining ring (item 12).
3. Remove end cap (item 14).Thrustplug(item15)and
thrust washer (item 16) usually remain in end cap bore
and should be removed for cleaning and inspection.
4. Remove drive shaft assembly (items 17).
5. Remove carrier assembly (item 18).
6. If wheel stud (item 5) removal is necessary, use
press to extract stud(s) from housing.
NOTE: Steps 6 through 10 are necessary only if in-
specting or replacing bearings and/or seals.
IMPORTANT: Do not reuse retaining ring (item 10)
after it has been removed.
7. Remove retaining ring (item 10) and thrust washer
(item 9). Discard retaining ring.
8. Remove housing (item 6) from spindle (item 1). Re-
move outer bearing cone (item 8).
9. Remove and discard all seals and O--rings (items 2,
21 and 24).
10.If bearings will be replaced, remove inner bearing
cone (item 3) from housing. Remove bearing cups
(items 4 and 7) from housing.
11.If necessary, remove socket head screws (item 19)
with lock washers (item 20) that secure ring gear (item
11)tohousing.Remove ring gear and two(2) dowel pins
(item 23) from housing.
Figure 9
1
2
3
4
5
6
7
8
9
11
12
13
14
15
16
17
18
19
20
21
22
23
24
10
21
Assembly (Figs. 8 and 9)
1. Thoroughlycleanparts in solvent anddrycompletely
after cleaning. Inspect parts for damage or excessive
wear and replace as necessary.
NOTE: Use new seal and shim kits when assembling
planetary wheel drive.
2. If spindle and housing were separated:
A. Press bearing cups (items 4 and 7) into housing.
Cupsshouldbe pressedfullyto shoulder ofthehous-
ing bore.
B. Set inner bearing cone (item 3) into bearing cup
(item 4) that is installed in housing.
C. Make sure that seal bore in housing is thoroughly
cleaned. If OD of seal (item 24) is not rubber or does
not have a sealant coating, apply light coating of sili-
cone sealant to seal bore in housing. Install seal into
housing so it is flush with housing face. Lightly
grease seal lips.
D. Pack boot seal (item 2) with grease and install on
housing.
E. If ring gear was removed from housing, place
dowel pins (item 23) in housing. Secure ring gear to
housing withlockwashers (item 20) andsockethead
screws (item 19). Torque socket head screws to 9ft--
lb (12 N--m).
Axles, Planetaries
and Brakes