Servicing The Bushings In The Castor Arms; Servicing The Castor Wheels And Bearings - Toro 31335 Operator's Manual

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3
2
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1. Castor arm bracket
2. Hairpin cotter
3. Clevis pin
Servicing the Bushings in the
Castor Arms
The castor arms have bushings pressed into the top and
bottom of the tube and after many hours of operation, the
bushings will wear. To check the bushings, move the castor
fork back and forth and from side to side. If the castor
spindle is loose inside the bushings, the bushings are worn
and must be replaced.
1. Raise the cutting unit so that the wheels are off of
the floor. Block the cutting unit so that it cannot
accidentally fall.
2. Remove the tensioning cap, spacer(s), and thrust
washer from the top of the castor spindle.
3. Pull the castor spindle out of the mounting tube.
Allow the thrust washer and spacer(s) to remain on
the bottom of the spindle.
4. Insert a pin punch into the top or bottom of the
mounting tube and drive the bushing out of the tube
(Figure 27). Also drive the other bushing out of the
tube. Clean the inside of the tubes to remove dirt.
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g018216
Figure 26
4. Lift arm
5. Thrust washer
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
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
1. Remove the locknut from the bolt holding the castor
wheel assembly between the castor fork
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
bearing from the opposite side of the wheel hub.
3. Check the bearings, spacer, and inside of the wheel hub
for wear. Replace any damaged parts.
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Figure 27
2. Bushings
(Figure
Figure 28
3. Bearing (2)
4. Bearing spacer
(Figure 28). Remove the
28).