user manual
Groundsmaster 4100--DCutting Deck
Page 8 -- 18
Blade Spindle Service
1. Lock nut
2. Flat washer
3. Driven pulley
4. Spindle shaft
5. Drive pulley (single shown)
6. Hydraulic motor mount
7. O--ring
8. Oil seal
9. Bearing cup and cone
10. Outer bearing spacer
11. Inner bearing spacer
12. Spacer ring
13. Snap ring
14. Grease fitting
15. Spindle housing
16. Spindle shaft spacer
17. Spindle shaft
Figure 16
1
2
4
13
15
1
5
4
6
8
9
14
16
8
2
3
7
17
9
130 to 150 ft--lb
(176 to 203 N--m)
DRIVEN SPINDLE
DRIVE SPINDLE
11
12
10
Disassembly (Fig. 16)
1. Loosen and remove lock nut from top of spindle
shaft. Remove hardened washer and pulley from
spindle. For drive spindle, remove hydraulic motor
mount.
2. Remove the spindle shaft from the spindle housing
whichmayrequiretheuseofanarborpress.Thespindle
shaft spacer should remain on the spindle shaft as the
shaft is being removed.
3. Carefully remove oil sealsfrom spindle housing tak-
ing care to not damage seal bore in housing.
4. Allow the bearing cones, inner bearing s pacer and
spacer ring to drop out of the spindle housing (Fig. 17).
5. Using an arbor press, remove both of the bearing
cups and the outer bearing spacer from the housing.
6. The large snap ring can remain inside the spindle
housing. Removal of this snap ring is very difficult.
Assembly (Fig. 16)
NOTE: Areplacementspindlebearingsetcontainstwo
(2) bearings, a spacer ring and a large snap ring (items
1, 2and 3in Fig. 17).These partscannot be purchased
separately. Also, do not mix bearing set components
from one deck spindle to another.
NOTE: A replacement bearing spacer set includes the
innerspacerandouterspacer(items 4and5in Fig.17).
Do not mix bearing spacers from one deck spindle to
another.
IMPORTANT: If new bearings are installed into a
usedspindlehousing,itmaynotbenecessarytore-
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
withthenewbearings.Ifthelargesnapringisfound
to be damaged, replace the snap ring.
1. Iflargesnapringwasremovedfromspindlehousing,
install snap ring into housing groove. Make sure snap
ring is fully seated in housing groove.