Adjusting The Caster-Pivot Bearing; Removing The Clutch Shim - Toro 72980 Operator's Manual

Adjusting the Caster-Pivot
Bearing
Service Interval: Every 500 hours/Yearly (whichever
comes first)
1. Park the machine on a level surface, disengage
the blade-control switch (PTO), and engage the
parking brake.
2. Shut off the engine, remove the key, and wait
for all moving parts to stop before leaving the
operating position.
3. Remove the dust cap from caster and tighten
the locknut (Figure
4. Tighten the locknut until the spring washers are
flat, and then back off a 1/4 turn to properly set
the preload on the bearings
Important:
Make sure that the spring
washers are installed correctly as shown in
Figure 62.
5. Install the dust cap
Figure 62
1. Spring washers
2. Locknut
62).
(Figure 62).
(Figure 62).
3. Dust cap

Removing the Clutch Shim

Some later model year units have been built with
clutches that contain a brake shim. When the clutch
brake has worn to the point where the clutch no longer
engages consistently, you can remove the shim to
extend the clutch life.
1. Armature
2. Field shell
3. Rotor
4. Brake-mounting bolt
1. Park the machine on a level surface, disengage
the blade-control switch (PTO), and engage the
parking brake.
2. Shut off the engine, remove the key, and wait
for all moving parts to stop before leaving the
operating position.
3. Using an air compressor, blow out any debris
from under the brake pole and around the brake
spacers (Figure
g001297
4. Check the condition of the wire-harness leads,
connectors, and terminals.
Note:
Clean or repair as necessary.
50
Figure 63
5. Brake spacer
6. Re-gap shim
7. Brake pole
64).
Figure 64
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