Castor Wheel And Bearings Service - Toro 30255 Operator's Manual

1
3
4
Figure 60
1. Locking Pin
2. spacers (locate as
required)
4. Insert a pin punch into the mounting tube and carefully
drive out the bushings (Fig. 61). Clean the inside of
the mounting tube.
5. Grease the inside and outside of the new bushings. Use
a hammer and flat plate to carefully drive the bushings
into the mounting tube.
6. Inspect the castor wheel fork for wear and replace if
necessary (Fig. 60).
7. Slide the castor wheel fork through the bushings in the
mounting tube. Replace the spacer(s) onto the fork and
secure with the retaining ring (Fig 60).
Important The inside diameter of the bushings may
collapse slightly when installed. If the castor wheel fork
does not slide into the new bushings, ream both bushings
to an inside diameter of 1.126 in. (28.6mm).
8. Grease the fitting on the carrier frame mounting tube
using No. 2 general purpose lithium base or
molybdenum base grease.
2
2
3. Carrier Frame Mounting
Tube
4. Castor Wheel Fork
38
2
1
2
Figure 61
1. Carrier Frame Mounting
Tube
Castor Wheel and Bearings
Service
The castor wheels rotate on a roller bearing supported
by a spanner bushing. If the bearing is kept well
lubricated, wear will be minimal. Failure to keep the
bearing well lubricated will cause rapid wear. A
wobbly castor wheel usually indicates a worn
bearing.
1. Remove the locknut and wheel bolt holding the castor
wheel to the castor fork (Fig. 62).
2. Remove one bushing, then pull the spanner bushing
and roller bearing out of the wheel hub (Fig. 62).
3. Remove the other bushing from the wheel hub and
clean any grease and dirt from the wheel hub (Fig. 62).
4. Inspect the roller bearing, bushings, spanner bushing
and inside of the wheel hub for wear. Replace any
defective or worn parts (Fig. 62).
m–5197
2. Bushing