Toro Groundsmaster 1000L, Service Manual

Page: 321 / 352

Input Shaft/Pinion Gear
The following procedures assume the rear axle assem-
bly has been removed from the machine.
Removal
1. Remove input shaft/pinion gear assembly from the
axle support. Remove the shims and bearing case O-
ring.
2. Release the stake washer and remove the locknut.
Remove and discard the stake washer (Fig. 16).
3. Drive the input shaft/pinion gear out from the outer
bearing cone and bearing case. Remove and discard
the oil seal and O-ring.
4. Inspect all gears, shafts, bearings, spacers, and
cases for damage and wear. Replace components as
necessary.
NOTE: Replacement input shaft/pinion gears are only
available in matched ring and pinion sets.
Installation
NOTE: When installing new bearing cones, press only
on the inner race of the bearing cone.
1. If the inner bearing cone was removed, press a new
bearing cone all the way onto the input shaft/pinion gear.
2. Place the shaft and bearing assembly in the bearing
case and install the outer bearing cone.
NOTE: The bearings must be completely seated.
There should be no input shaft/pinion gear end play.
3. Coat a new oil seal with grease and install as shown
(Fig. 17).
4. Coat a new O-ring with grease. Install O-ring in the
oil seal collar, and install the collar.
5. Install a new stake washer. Install the lock nut finger
tight.
6. Set the bearing preload be securing the bearing case
in a vise. Thread a M12 x 1.5 hex. hd. capscrew into the
splined end of the input shaft/pinion gear.
7. Slowly tighten the locknut until 4.0 to 6.0 in-lbs. (0.4
to 0.7 Nm) of force is required to rotate the input shaft/
pinion gear in the bearing case.
8. Secure the lock nut with the stake washer.
1
2
3
4
5
6
7
8
9
10
11
Figure 16
1. Lock nut 7. Input shaft/pinion gear
2. Stake washer 8. Bearing case shims
3. Bearing case 9. Seal collar
4. Bearing case O-ring 10. O-ring
5. Inner bearing 11. Oil seal
6. Outer bearing
0.04 in. (1.0 mm)
1
2
Figure 17
1. Oil seal 2. Bearing case
Groundsmaster 228–D Page 14.1 – 9 4WD Rear Axle
Rev. D
(Groundsmaster 228–D with Dae Dong axle)