Toro Z Master Professional 5000 Series Operator's Manual page 51

Figure 69
1. Armature
2. Field shell
3. Rotor
4. Brake-mounting bolt
Removing the Clutch Shim
1. Shut off the engine, wait for all moving parts
to stop, remove the key ignition, 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 70
3. Check the condition of the wire-harness leads,
connectors, and terminals.
Note:
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 (0.04
inch), proceed with the following steps:
A. Loosen both brake-mounting bolts 1/2 to 1
full turn as shown below.
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5. Brake spacer
6. Re-gap shim
7. Brake pole
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Note:
Do not remove the brake pole from
the field shell/armature. The brake pole has
worn to match the armature and needs to
continue to match after the shim is removed
to ensure the proper brake torque.
1. Brake-mounting bolt
B. Using needle-nose pliers, or by hand, hold
the tab and remove the shim.
Note:
Do not discard the shim until proper
clutch function has been confirmed.
1. Shim
C. Using a pneumatic line to blow out any
debris from under the brake pole and
around the brake spacers.
D. Torque each bolt (M6 x 1) to 13 N∙m (10
ft-lb) +/-0.7 N∙m (0.5 ft-lb).
E. Using a 0.25 mm (0.01 inch) thick feeler
gauge, verify that a gap is present between
the rotor and the armature face on both
sides of the brake pole as shown.
Note:
Due to the way the rotor and the
armature faces wear (peaks and valleys) it
is sometimes difficult to measure the gap
accurately.
51
Figure 71
Figure 72
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