Using The Clutch Shim - Toro 74969 Operator's Manual

5. Install the dust cap
Figure 76
1. Spring washers
2. Locknut

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, you can remove the shim to
extend the clutch life.
Figure 77
1. Armature
2. Field shell
3. Rotor
4. Brake-mounting bolt
(Figure 76).
3. Dust cap
5. Brake spacer
6. Re-gap shim
7. Brake pole
Removing the Clutch Shim
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
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4. Check the condition of the wire-harness leads,
connectors, and terminals.
Note:
Clean or repair as necessary.
5. Verify that 12 V is present at the clutch connector
when the blade-control switch (PTO) switch is
engaged.
6. Measure the gap between the rotor and
armature. If the gap is greater than 1 mm (0.04
inch), do the following steps:
A. Loosen both brake-mounting bolts 1/2 to 1
full turn as shown in
Note:
the field shell/armature. The brake pole
has worn to match the armature and needs
to continue to match after you remove the
shim to ensure proper brake torque.
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53
78).
Figure 78
Figure 79.
Do not remove the brake pole from
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