Caster Fork and Bearing Removal (continued)
5. Support the underside of the caster wheel and remove the fastener screw
securing the caster bearing assembly .
6. Remove the caster fork from the front axle. Inspect the caster fork shaft
for wear or damage.
7. Remove the upper and lower bearings from the axle and inspect the inside of
the axle bearing area for damage and excessive wear .
Caster Fork and Bearing Installation
1. Clean the surface inside the axle bearing area.
2. Install a new lower bearing from the bottom side into the axle, ensure it is
fully seated. Press evenly on the inner and outer race to seat the bearing.
3. Install the spring washer on the top side of the axle, followed by a new upper
bearing, ensuring that the bearing is properly seated (the upper bearing
should be oating in the housing and does not need to be pressed in place).
Note: The bearings are sealed and do not require grease/lubrication.
4. Install the at washer on top of the bearing.
5. Install the fastener screw and tighten to the caster shaft. The spring washers
will provide the appropriate preload to the bearings.
6. Lower the unit and verify proper function.
Note: The caster wheel is not serviceable and should be replaced as a
complete assembly .
7. Connect the battery by installing the positive cable rst, then the negative
cable to the battery .
Caster Wheel Rebuild
Caster Wheel Disassembly
g336095
Figure 99
1. Caster Fork
4. Lock Nut
2. Screw
5. Wheel Assembly
3. Seal Guard
1. Park the machine on a level surface and disengage the PT O. Stop the
engine, wait for all moving parts to stop and remove the key . Engage the
parking brake.
Chassis: Service and Repairs Page 6–30 2000 Series Z MASTER®Service Manual
3460-328 Rev A
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