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