Toro Z Master 74902TE, Operator'S Manual

Page: 53 / 80

Adjusting the Caster-Pivot
Bearing
Service Interval: Every 500 hours/Yearly (whichever
comes first)
1. Disengage the blade-control switch (PTO), move
the motion-control levers to the N
EUTRAL
-
LOCK
position, 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 71 ).
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 (
Figure 71 ).
Important:
Make sure that the spring
washers are installed correctly as shown in
Figure 71 .
5. Install the dust cap ( Figure 71 ).
g001297
Figure 71
1. Spring washers
3. Dust cap
2. Lock nut
Using 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, the shim can be removed to
extend the clutch life.
g010869
Figure 72
1. Armature 5. Brake spacer
2. Field shell 6. Re-gap shim
3. Rotor 7. Brake pole
4. Brake-mounting bolt
Removing the Clutch Shim
1. Shut off the engine, wait for all moving parts to
stop, remove the key, engage the parking brake,
and allow the machine to cool completely before
starting these instructions.
2. Using an air compressor, blow out any debris
from under the brake pole and around the brake
spacers (
Figure 73 ).
g010868
Figure 73
3. Check the condition of the wire-harness leads,
connectors, and terminals.
Note:
Clean or repair as necessary.
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