Filter
Top Products
Groundsmaster 4500--D/4700--D Page 6 -- 15 Axles, Planetaries and Brakes
NOTE: The planetary wheel drive assembly can beser-
viced with the planetary installed to machine. If the
spindle (item 1) needs to be removed from machine, see
Planetary Wheel Drive Assembly in this section.
Disassembly (Figs. 11 and 12)
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 17).
3. Remove end cap (item 20). Thrust plug (item 21) and
thrust washer (item 22) usually remain in end cap bore
and should be removed for cleaning and inspection.
4. Remove drive shaft assembly (items 23, 24 and 25)
If necessary, remove retaining ring and primary gear
from shaft.
5. Remove primary carrier (item 26), secondary gear
(item 27) and secondary carrier (item 28).
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.
6. Remove retaining ring (item 15) and thrust washer
(item 14). Discard retaining r ing.
7. Carefully remove housing (item 9) from spindle (item
1). Remove outer bearing cone (item 12).
8. Remove and discard seals (items 2 and 3) and O--
rings (item 13) from housing.
9. Remove inner bearing cone (item 4) from housing. I f
necessary, remove bearing cups (items 5 and 11) from
housing.
10.If wheel stud (item 6) removal is necessary, use
press to extract stud(s) from housing.
11.If necessary, remove socket head screws (item 7)
with lock washers (item 8) that secure ring gear (item16)
to housing. Remove ring gear and two (2) dowel pins
(item 10) from housing.
Figure 12
Assembly (Figs. 11 and 12)
1. Thoroughly clean partsin 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.
NOTE: Use new seal and shim kits when assembling
planetary wheel drive.
3. If spindle and housing were separated:
A. Press bearing cups (items 5 and 11) into housing
(item 9). Cups should be pressed fully to shoulder of
the housing bore.
B. Set inner bearing cone (item 4) into inner bearing
cup.
C. Make sure that seal bore in housing is thoroughly
cleaned. If OD of seal (item 3) is not rubber or does
not have a sealant coating, apply light coating of sili-
cone sea lant to seal bore in housing. I nstall 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 10) in housing. Secure ring gear to
housing with lock washers (item 8) and socket head
screws (item 7). Torque socket head screws from
118 to 144 in--lb (13.3 to 16.3 N--m).
Axles, Planetaries
and Brakes