Removing The Clutch Shim - Toro 72923 Operator's Manual

Important:
Make sure that the spring
washers are installed correctly as shown in
Figure 86.
5. Install the dust cap
1. Spring washers
2. Locknut

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
(Figure 86).
Figure 86
3. Dust cap
Figure 87
5. Brake spacer
6. Re-gap shim
7. Brake pole
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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1. Brake-mounting bolt
63
88).
Figure 88
Figure 89.
Do not remove the brake pole from
Figure 89
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