Servicing The Castor Arm Bushings; Servicing The Castor Wheels And Bearings - Toro 30446 Operator's Manual

Figure 82
1. Tensioning cap
2. Spacers
3. Shims
2. Install the tensioning cap.
Servicing the Castor Arm
Bushings
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 83). Also drive the other bushing out of the
tube. Clean the inside of the tubes to remove dirt.
Figure 83
1. Castor arm tube
4. Axle mounting holes
5. Castor wheel
2. Bushings
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 800 hours
1. Remove the locknut from the bolt holding the castor
wheel assembly between the castor fork (Figure 84)
or the castor pivot arm (Figure 85). Grasp the castor
wheel and slide the bolt out of the fork or pivot arm.
1. Castor bolt
2. Castor fork
1. Castor wheel
2. Castor pivot arm
53
Figure 84
3. Bearing
4. Bearing spacer
Figure 85
3. Bearing
4. Bearing spacer