Blade Spindle Service - Toro Groundsmaster 4100-D Service Manual

Blade Spindle Service

7
8
11
14
9
8
1. Lock nut
2. Flat washer
3. Driven pulley
4. V−ring seal (if equipped)
5. Drive pulley (single shown)
6. Hydraulic motor mount
Disassembly (Fig. 15)
NOTE: Early production spindle assemblies included a
v−ring seal (item 4) which has been found to be unnec-
essary. Discard v−ring seal if found in spindle assembly.
1. Loosen and remove lock nut from top of spindle
shaft. Remove flat washer, pulley, and v−ring seal (if
equipped) from spindle. For drive spindle, remove hy-
draulic motor mount.
2. Remove the spindle shaft from the spindle housing
which may require the use of an arbor press. The spindle
shaft spacer should remain on the spindle shaft as the
shaft is being removed.
3. Remove oil seals from spindle housing.
4. Allow the bearing cones, inner bearing spacer, and
spacer ring to drop out of the spindle housing.
5. Using a punch and hammer, drive both of the bearing
cups out of the spindle housing. Remove the outer bear-
ing spacer from the housing.
Cutting Deck
9
10
12
130 to 150 ft−lb
(176 to 203 N−m)
13
15
16
17
Figure 15
7. O−ring
8. Oil seal
9. Bearing cup and cone
10. Outer bearing spacer
11. Inner bearing spacer
12. Spacer ring
6. The large snap ring can remain inside the spindle
housing. Removal of this snap ring is very difficult.
Assembly (Fig. 15)
IMPORTANT: If new bearings are installed into a
used spindle housing, it may not be necessary to re-
place the original large snap ring. If the original
snap ring is in good condition with no evidence of
damage (e.g. spun bearing), leave the snap ring in
the housing and discard the snap ring that comes
with the new bearings. If the large snap ring is found
to be damaged, replace the snap ring. Replacement
bearings are sold only with a matched spacer ring
and large snap ring (Fig. 17). These parts cannot be
purchased separately.
1. If large snap ring was removed, install snap ring into
spindle housing groove. Make sure snap ring is fully
seated in housing groove.
2. Install large outer bearing spacer into top of spindle
housing. The spacer should fit against the snap ring.
Page 8 − 16
DRIVEN SPINDLE
1
DRIVE SPINDLE
1
5
13. Snap ring
14. Grease fitting
15. Spindle housing
16. Spindle shaft spacer
17. Spindle shaft
Rev. E
2
3
4
17
2
4
6
17
Groundsmaster 4100−D