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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 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 25). Also drive the other bushing out of the
tube. Clean the inside of the tubes to remove dirt.
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
The castor wheel rotates on a high-quality roller bearing and
is supported by a spanner bushing. Even after many hours
of use, provided that the bearing was kept well lubricated,
the bearing wear will be minimal. However, failure to keep
the bearing lubricated will cause rapid wear. A wobbly castor
wheel usually indicates a worn bearing.
1. Remove the locknut from the capscrew holding the
castor wheel assembly between the castor fork (Figure
Figure 25
2. Bushings
26). Grasp the castor wheel and slide the capscrew out
of the fork.
2. Pull the spanner bushing out of the wheel hub (Figure
26).
1. Castor wheel
2. Capscrew and locknut
3. Bushing (2)
3. Remove the bushing from the wheel hub and allow the
bearing to fall out (Figure 26). Remove the bushing
from the opposite side of the wheel hub.
4. Check the bearing, spanner, and inside of the wheel
hub for wear. Replace damaged parts.
5. To assemble the castor wheel, push the bushing into
the wheel hub. Slide the bearing into the wheel hub.
Push the other bushing into the open end of the wheel
hub to captivate the bearing inside the wheel hub.
6. Carefully slide the spanner through the bushings and
the wheel hub (Figure 26).
7. Install the castor wheel assembly between the castor
fork and secure it in place with the capscrew, washers,
and locknut.
8. Lubricate the castor wheel bearing through the grease
fitting, using No. 2 general purpose lithium base grease.
Removing and Installing the
Blade(s)
The blade must be replaced if a solid object is hit, the
blade is out-of-balance, worn, or bent. Always use genuine
Toro replacement blades to ensure safety and optimum
performance. Never use blades made by other manufacturers
because they could be dangerous.
1. Raise the cutting unit to the highest position, engage
the parking brake, stop the engine, and remove the
ignition key. Block the cutting unit to prevent it from
accidentally falling.
20
Figure 26
4. Spanner bushing
5. Roller bearing
6. Washer (2)
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