Toro Groundsmaster 328-D, Service Manual

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Groundsmaster 328–D 4WD Rear Axle (Rev. G) Page 10.1 – 12
(Dae Dong Axle)
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. 18).
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. 19).
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 head 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. Lock nut
2. Stake washer
3. Bearing case
4. Bearing case O-ring
5. Inner bearing
6. Outer bearing
7. Input shaft/pinion gear
8. Bearing case shims
9. Seal collar
10. O-ring
11. Oil seal
Figure 18
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2
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6
7
8
9
10
11
1. Oil seal 2. Bearing case
Figure 19
0.040 in. (1.0 mm)
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