Servicing The Front Bushings In The Castor Arms; Servicing Castor Wheels And Bearings - Toro 30450 Operator's Manual

Figure 76
1. Clutch
Servicing the Front 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 castor
fork back and forth and from side to side. If castor spindle
is loose inside the bushings, bushings are worn and must be
replaced.
1. Raise cutting unit so wheels are off floor and block it so
it cannot fall accidentally.
2. Remove HOC cap and spacer(s) from top of castor
spindle.
3. Pull castor spindle out of mounting tube. Allow
spacer(s) to remain on bottom of spindle.
4. Insert pin punch into top or bottom of mounting tube
and drive bushing out of tube (Fig. 77). Also drive other
bushing out of tube. Clean inside of tubes to remove
dirt.
5. Apply grease to inside and outside of new bushings.
Using a hammer and flat plate, drive bushings into
mounting tube.
6. Inspect castor spindle for wear and replace it if
damaged.
7. Push castor spindle through bushings and mounting
tube. Slide spacer(s) onto spindle. Install HOC cap on
castor spindle to retain all parts in place.
2. Flange studs
44
Figure 77
1. Front castor arm tube
Servicing Castor Wheels and
Bearings
1. Remove locknut from capscrew holding castor wheel
assembly between front castor fork (Fig. 78) or rear
castor pivot arm (Fig. 79) Grasp castor wheel and slide
capscrew out of fork or pivot arm.
Figure 78
1. Castor wheel
2. Front castor fork
2. Remove bearing from wheel hub and allow bearing
spacer to fall out. Remove bearing from opposite side of
wheel hub.
3. Check the bearings, spacer and inside of wheel hub for
wear. Replace defective parts.
2. Bushings
3. Bearing (2)
4. Bearing spacer