Servicing The Castor Wheels And Bearings - Toro 31598 Operator's Manual

1. Castor arm tube
5. Apply grease to the inside and outside of the new
bushings. Using a hammer and flat plate, drive the
bushings into the mounting tube.
6. Inspect the castor spindle for wear and replace it if
it is damaged.
7. Push the castor spindle through the bushings and
mounting tube. Slide the thrust washer and spacer(s)
onto the spindle. Install the tensioning cap on the
castor spindle to retain all parts in place.
Servicing the Castor Wheels
and Bearings
Service Interval: Every 500 hours—Inspect the cutting
unit castor wheel assemblies.
1. Remove the locknut from the bolt holding the castor
wheel assembly between the castor fork (Figure 98)
or the castor pivot arm. Grasp the castor wheel and
slide the bolt out of the fork or pivot arm.
1. Castor wheel
2. Castor fork
2. Remove the bearing from the wheel hub and allow
the bearing spacer to fall out (Figure 98). Remove
the bearing from the opposite side of the wheel hub.
Figure 97
2. Bushings
Figure 98
3. Bearing
4. Bearing spacer
3. Check the bearings, spacer, and inside of the wheel
hub for wear. Replace any damaged parts.
4. To assemble the castor wheel, push the bearing into
the wheel hub. When installing the bearings, press
on the outer race of the bearing.
5. Slide the bearing spacer into the wheel hub. Push the
other bearing into the open end of the wheel hub to
captivate the bearing spacer inside the wheel hub.
6. Install the castor wheel assembly between the castor
fork and secure it in place with the bolt and locknut.
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