Toro Groundsmaster 4100-D Service Manual page 201

Planetary Wheel Drive Disassembly (Figure 7)
1. Remove retaining ring (12).
2. Remove end cap (14). Thrust plug (15) and thrust
washer (16) are captive on inside of end cap.
3. Remove drive shaft (17).
4. Remove carrier assembly (18).
NOTE: Steps 6 −10 are necessary only if inspecting or
replacing bearings and/or seals.
5. Remove socket head screws (19) with lock washers
(20) and remove ring gear (11).
6. Remove retaining ring (10) and thrust washer (9).
7. Remove spindle (1) from housing (6). Remove bear-
ing cone (8).
8. Remove and discard all seals.
9. If bearings will be replaced, remove bearing cone (3)
from spindle. Remove bearing cups (4 and 7) from hous-
ing (6).
Groundsmaster 4100−D
Planetary Wheel Drive Assembly (Figure 7)
NOTE: Use new seal kit when assembling planetary
wheel drive.
1. Clean parts in solvent. Inspect parts for damage or
excessive wear and replace as necessary.
2. If spindle and housing were separated:
A. Install boot seal (2) to spindle (1).
B. Press bearing cups (4 and 7) into housing (6).
C. Install bearing cone (3) onto spindle (1).
D. Install seal (24) to housing (6). Assemble housing
(6) to spindle (1).
E. Install bearing cone (8) onto spindle and secure
with thrust washer (9) and retaining ring (10).
F. After retaining ring is installed, make sure that
there is minimal endplay in assembly. If required,
thrust washer options are identified in the parts
manual.
G. Install o−ring (21) and then assemble ring gear
(11) to housing (6) with lock washers (20) and socket
head screws (19). Torque socket head screws to 9 ft−
lb (12 N−m).
3. Install carrier assembly (18).
4. Install drive shaft (17).
5. Install thrust washer (16) and thrust plug (15).
6. Make sure that thrust plug (15) and thrust washer
(16) are captive on inside of end cap. Install o−ring (22)
to end cap and then install end cap (14). Secure cap with
retaining ring (12).
7. Check operation of planetary wheel drive before
installing assembly on the machine. With a constant
turning force applied, rotation of the planetary should be
consistent. If there is more drag at certain points, gears
are not rolling freely and the planetary should be ex-
amined for improper assembly or damaged compo-
nents.
Page 6 − 11 Axles, Planetaries, and Brakes