Servicing The Caster Wheel And Bearings; Adjusting The Electric Clutch - Toro 30031 Operator's Manual

carefully drive the bushings into the pivot
tubes.
6. Inspect the caster wheel fork for wear and
replace if necessary (Figure 36).
7. Slide the caster wheel fork through the
bushings in the mounting tube. Replace the
spacer(s) onto the fork and secure with the
retaining ring (Figure 36).
Important: The inside diameter of
the bushings may collapse slightly when
installed. If the caster wheel fork does not
slide into the new bushings, ream both
bushings to an inside diameter of 1.126
inch (29 mm).
8. Grease the fitting on the carrier frame pivot
tubes using No. 2 general purpose lithium base
or molybdenum base grease.
Servicing the Caster Wheel
and Bearings
The caster 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 caster wheel usually indicates a
worn bearing.
1. Remove the locknut and wheel bolt holding
the caster wheel to the caster fork (Figure 38).
Figure 38
1. Locknut
2. Cap
3. Roller Bearing
4. Spanner Bushing
5. Wheel
6. Bushing
2. Remove one bushing, then pull the spanner
bushing and roller bearing out of the wheel
hub (Figure 38).
3. Remove the other bushing from the wheel hub
and clean any grease and dirt from the wheel
hub (Figure 38).
4. Inspect the roller bearing, bushings, spanner
bushing and inside of the wheel hub for
wear. Replace any defective or worn parts
(Figure 38).
5. To assemble, place one bushing into the wheel
hub. Grease the roller bearing and spanner
bushing and slide them into the wheel hub.
Place the second bushing into the wheel hub
(Figure 38).
6. Install the caster wheel into the caster fork
and secure with the wheel bolt and locknut.
Tighten the locknut until the spanner bushing
bottoms against the inside of the caster forks
(Figure 38).
7. Grease the fitting on the caster wheel.

Adjusting the Electric Clutch

The clutch is adjustable to ensure proper
engagement and proper braking. Check
adjustment after every 100 hours of operation.
1. Insert a 0.015–0.021 inch (0.381–0.533 mm)
feeler gauge through one inspection slot in the
side of the assembly. Make sure it is between
the armature and the rotor friction surfaces.
2. Tighten the lock nuts until there is slight
binding on the feeler gauge but it can be
moved easily within the air gap (Figure 39).
3. Repeat this for the remaining slots.
4. Check each slot again and make slight
adjustments until the feeler gauge between the
rotor and armature with very slight contact
between them.
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