Toro GrandStand 74574, Operator'S Manual

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2. Remove one bushing, then pull the spanner bushing
and roller bearing out of the wheel hub (
Figure 61 ).
3. Remove the other bushing from the wheel hub, and
clean any grease and dirt from the wheel hub (
Figure
61 ).
4. Inspect the roller bearing, bushings, spanner bushing
and the inside of the wheel hub for wear.
Note:
Replace any defective or worn parts ( Figure 61 ).
5. Place one bushing into the wheel hub ( Figure 61 ).
6. Grease the roller bearing and spanner bushing, and
slide them into the wheel hub (
Figure 61 ).
7. Place the second bushing into the wheel hub ( Figure
61 ).
8. Install the caster wheel into the caster fork and secure
it with the wheel bolt and locknut (
Figure 61 ).
9. Tighten the locknut until the spanner bushing bottoms
against the inside of the caster forks (
Figure 61 ).
10. Grease the fitting on the caster wheel.
Adjusting the Electric Clutch
Service Interval: Every 100 hours—Check the electric
clutch.
The clutch is adjustable to ensure proper engagement and
proper braking.
1. Insert a 0.4 to 0.5 mm (0.01 to 0.02 inches) feeler gauge
through one inspection slot in the side of the assembly.
Note:
Make sure it is between the armature and the
rotor friction surfaces.
Note:
The gap needs to be at least 0.4 mm (0.02
inches) and not more than 0.5 mm (0.02 inches).
2. If adjustment is needed, use a 0.4 mm (0.02 inches)
feeler gauge to set each of the 3 adjustment-slot
positions.
3. Tighten the lock nuts until there is slight binding on
the feeler gauge, but it can be moved easily within the
air gap (
Figure 62 ).
4. Repeat this for the remaining slots.
5. Check each slot again and make slight adjustments until
the feeler gauge between the rotor and armature with
very slight contact between them.
Figure 62
1. Adjusting nut 3. Feeler gauge
2. Slot
Checking the Wheel-Lug Nuts
Service Interval: After the first 100 hours—Check the
wheel-lug nuts.
Check and torque the wheel lug nuts to 115-142 N-m (85-105
ft-lb).
Checking the Wheel-Hub Nuts
Service Interval: After the first 100 hours—Check the
wheel-hub nuts.
Every 500 hours—Check the wheel-hub nuts.
Check and torque the wheel hub nuts to 211-260 ft-lb
(286-352 N-m).
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