Toro GrandStand 71504 - Removing the Clutch Shim

9. T ighten the locknut until the spanner bushing
bottoms against the inside of the caster forks
( Figure 57 ).
10. Grease the tting on the caster wheel.
Removing the Clutch Shim
Service Interval : Every 100 hours
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 58 ).
g302539
Figure 58
1. Armature 5. Brake spacer
2. Field shell
6. Shim.
3. Rotor 7. Brake pole
4. Brake-mounting bolt
1. Park the machine on a level surface, disengage
the PT O, and engage the parking brake.
2. Shut of f 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
under the brake pole and around the brake
spacers.
g302534
Figure 59
4. Check the condition of the wire-harness leads,
connectors, and terminals. Clean or repair them
as necessary .
5. V erify that 12 V is present at the clutch connector
when the you engage the PT O switch.
6. Measure the gap between the rotor and
armature. If the gap is greater than 1 mm (0.04
inch), proceed with the following steps:
A. Loosen both brake mounting bolts 1/2 to 1
full turn as shown in Figure 60 .
Note: Do not remove the brake pole from
the eld shell/armature. The brake pole
has worn to match the armature and needs
to continue to match after you remove the
shim to ensure the proper brake torque.
g302537
Figure 60
1. Brake-mounting bolt
B. Using needle-nose pliers, or by hand,
remove the shim.
Note: Do not discard the shim until you
conrm that the clutch functions properly .
g302538
Figure 61
1. Shim
C. Using a pneumatic line, blow out any debris
under the brake pole and around the brake
spacers.
D. T orque each bolt (M6 x 1) to 12.3 to 13.7
N∙m (9.5 to 10.5 ft-lb).
42