Toro Z Master Commercial 3000 Series Operator's Manual page 47

3. Using an air compressor, blow out any debris
from under the brake pole and around the brake
spacers.
Figure 63
4. Check the condition of the wire harness leads,
connectors, and terminals. Clean or repair them
as necessary.
5. Verify that 12 V is present at the clutch connector
when you engage the PTO 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 a half to
a full turn as shown below.
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 you remove the
shim to ensure the proper brake torque.
Figure 64
1. Brake-mounting bolt
B. Use a needle nose pliers or your hand to
take hold of the tab and remove the shim.
Do not discard the shim until you have
confirmed the proper clutch function.
1. Shim
C. Using a pneumatic line, blow out any debris
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from under the brake pole and around the
brake spacers.
D. Torque each bolt (M6 x 1) to 12.3 to 13.7
N∙m (0.5 to 10.5 ft-lb).
E. Using a 0.010 inch thick feeler gauge, verify
that there is a gap between the rotor and
armature face on both sides of the brake
pole as shown in
Note:
and armature faces wear (peaks and
valleys), it may be difficult to measure the
true gap.
1. Feeler gauge
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1. Feeler gauge
47
Figure 65
Figure 66 and
Because of the way that the rotor
Figure 66
Figure 67
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Figure 67.
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