Using The Clutch Shim - Toro 74902TE Operator's Manual

4. Tighten the locknut until the spring washers are flat and
then back off a 1/4 turn to properly set the pre-load on
the bearings (Figure
Important: Make sure the spring washers are
installed correctly as shown in
5. Install the dust cap (Figure
Figure 68
1. Spring washers
2. Locknut
68).
Figure 68.
68).
3. Dustcap

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.
1. Armature
2. Field shell
3. Rotor
4. Brake mounting bolt
Removing the Clutch Shim
1. Stop the engine, wait for all moving parts to stop, and
remove the key. Engage the parking brake. 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.
3. Check the condition of the wire harness leads,
connectors, and terminals. Clean or repair as necessary.
4. Verify that 12V is present at the clutch connector when
the PTO switch is engaged.
5. Measure the gap between the rotor and armature. If
the gap is greater than 1 mm (.04 inch), proceed with
the following steps:
47
Figure 69
5. Brake spacer
6. Re-gap shim
7. Brake pole
Figure 70