Toro Groundsmaster 4300-D Service Manual page 341

Removing the Rear Axle Motor Housings
Installing the Rear Axle Motor Housings
Groundsmaster ® 4300-D
16226SL Rev C
1. Park the machine on a level surface, lower the cutting decks, shut off the
engine, set the parking brake, and remove the key from the key switch.
2. Block the front wheels with chocks to prevent the machine from moving.
3. Remove the rear wheel assembly; refer to
4. Remove the cotter pin and slotted hex nut that secure the tie rod end (item
22 in Figure 209) to the drag link. Use a ball joint removal tool (pickle fork)
and separate the tie rod end from the drag link.
5. If the right side motor housing is being removed, remove the cotter pin and
slotted hex nut that secure the steering cylinder ball joint (item 25 in
209) to the drag link. Use a ball joint removal tool (pickle fork) and separate
the steering cylinder from the drag link.
6. Remove the 4 bolts (item 14 in
the wheel motor to the motor housing. Slide the wheel motor assembly
(with the wheel hub and hydraulic hoses attached) from the motor housing.
Position the wheel motor away from the housing.
7. Support the motor housing to prevent it from falling.
Note: Do not allow the wheel motor assembly to hang from the hydraulic
hoses.
8. Remove the flange-head screw (item 2 in
retaining ring that secure the motor housing shaft into the axle tube. Slide the
motor housing out of the axle tube.
9. Locate and retrieve the thrust washer (item 7 in
housing shaft.
10. If necessary, remove the drag link from the motor housing.
11. Clean the motor housing shaft. Inspect the shaft for wear and replace the
motor housing if the shaft is worn or damaged.
12. Clean the rear axle bore and inspect the flange bushings (item 5 in
209) in the rear axle for wear or damage. If the bushings need replacement,
do the following steps:
Note: Do not damage the bore of the axle tube during bushing removal.
A. Use a bushing removal tool to extract both the flange bushings from the
axle tube.
B. Clean the inside of the axle tube to remove any dirt or unwanted material.
C. Apply grease to the inner and outer surfaces of new flange bushings.
D. Press the new flange bushings into the top and bottom of the axle tube
until bushing flange bottoms on the tube.
E. After bushing installation, ensure that the motor housing shaft slides
easily into the bushings. If there is any binding, locate and correct the
source of binding.
1. If removed, secure the drag link to the motor housing.
2. Apply a light coating of grease to the motor housing shaft.
3. Install the thrust washer (item 7 in
and slide the shaft up through the axle tube.
4. Hold the motor housing in place and install the retaining ring (item 4 in
209) onto the end of the spindle shaft.
5. Place the spindle cap (item 3 in
shaft and secure with the flange-head screw.
Removing the Wheel (page
Figure 209) and 4 lock washers that secure
Figure
Figure 209) onto the motor housing shaft
Figure 209) to the top of the motor housing
Page 6–17
Figure
209), spindle cap, and
Figure 209) from the motor
Figure
Figure
Chassis: Service and Repairs
6–6).