Toro Z593-D Z Master 74264TE, Operator'S Manual

Page: 52 / 80

Adjusting the Electric Clutch
Service Interval: Every 500 hours
The clutch is adjustable to ensure proper engagement and
proper braking.
1. Disengage the blade-control switch (PTO), move the
motion-control levers to the N
EUTRAL
-
LOCK
position,
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. Unlatch the seat and tip it forward.
4. Loosen the front engine panel knobs and remove the
panel.
5. Pull up on the spring-loaded idler pulley for the
PTO-drive belt and remove the belt from the clutch
pulley (
Figure 75 ).
g007167
Figure 75
1. Spring-loaded idler pulley 3. PTO-drive belt
2. Clutch 4. Gearbox
6. Unplug the electric connection for the clutch ( Figure
76 ).
7. Remove the 2 bolts holding the rubber clutch strap to
the mower frame (
Figure 76 ).
8. Remove the center bolt holding the clutch to the engine
shaft and remove the clutch and key (
Figure 76 ).
g007166
Figure 76
1. Clutch 4. Clutch center bolt
2. 2 bolts and nuts for clutch
strap 5. Electrical connection
3. Rubber clutch strap
9. Insert a 0.381 to 0.533 mm (0.015 to 0.021 inch) feeler
gauge through an inspection slot in the side of the
assembly (
Figure 77 ).
Note:
Make sure that it is between the armature and
the rotor friction surfaces.
10. Tighten the locknuts until there is slight binding on
the feeler gauge but it can be moved easily within the
air gap (
Figure 77 ).
11. Repeat this for the remaining slots.
12. Check each slot again and make slight adjustments until
the feeler gauge between the rotor and armature has
very slight contact between them.
g007168
Figure 77
1. Slot 3. Feeler gauge
2. Adjusting nut
13. Install the clutch to the engine shaft with the key.
14. Apply thread-locking adhesive to the center bolt.
15. While holding the crank shaft at the back of the
machine, install the center bolt and torque it to 68 N∙m
(50 ft-lb) (
Figure 76 ).
16. Install the rubber clutch strap to the mower frame with
the 2 previously removed bolts and nuts (
Figure 76 ).
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