Servicing The Caster-Arm Bushings; Servicing The Caster Wheels And Bearings - Toro 30643 Operator's Manual

Adjusting the Wing Mower Decks
1. Remove the cap screws and nuts securing the castor
arm to the castor fork
2. Position the shims, as required, to raise or lower the
castor wheel until the mower deck has the correct pitch.
3. Install the capscrews and nuts.
Figure 82
1. Castor arm
2. Shims
Servicing the Caster-Arm
Bushings
The caster arms have bushings pressed into the top and
bottom of the tube and after many hours of operation, the
bushings develop wear. To check the bushings, move the
caster fork back and forth and from side to side. If the caster
spindle is loose inside the bushings, the bushings are worn
and must be replaced.
1. Raise the mower deck so that the wheels are off the
floor and block the mower deck so it cannot fall.
2. Remove the tensioning cap, spacer(s), and thrust
washer from the top of the caster spindle.
3. Pull the caster spindle out of the mounting tube.
Note: Keep the thrust washer and spacer(s) 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).
Note: Also drive the other bushing out of the tube.
Clean the inside of the tubes to remove dirt.
(Figure 82).
3. Castor fork
1. Caster-arm tube
5. Apply grease to the inside and outside of the new
bushings.
6. Using a hammer and flat plate, drive the bushings into
the mounting tube.
7. Inspect the caster spindle for wear and replace it if it
is damaged.
8. Push the caster spindle through the bushings and
mounting tube.
9. Slide the thrust washer and spacer(s) onto the spindle
and install the tensioning cap on the caster spindle to
retain all parts in place.
Servicing the Caster Wheels
and Bearings
Service Interval: Every 800 hours
1. Remove the locknut from the bolt holding the
caster-wheel assembly between the caster fork
84) or the caster-pivot arm
Note: Grasp the caster wheel and slide the bolt out
of the fork or pivot arm.
1. Caster bolt
2. Caster fork
63
Figure 83
2. Bushings
(Figure 85).
Figure 84
3. Bearing
4. Bearing spacer
(Figure