Toro Z580-D Z Master Operator's Manual page 46

3. Tilt the seat forward, loosen the bolts and remove
the front engine panel.
4. Pull up on the spring loaded idler pulley for the PTO
drive belt and remove the belt from the clutch pulley
(Figure 61).
1. Spring loaded idler pulley
2. Clutch
5. Unplug the electric connection for the clutch
(Figure 62).
6. Remove the two bolts holding the rubber clutch
strap to the mower frame (Figure 62).
7. Remove the center bolt holding the clutch to
the engine shaft and remove the clutch and key
(Figure 62).
1. Clutch
2. Two bolts and nuts for
clutch strap
3. Rubber clutch strap
Figure 61
3. PTO drive belt
4. Gear box
Figure 62
4. Clutch center bolt
5. Electrical connection
8. Insert a 0.015–0.021 inch (0.381–0.533 mm) feeler
gauge through one inspection slot in the side of the
assembly. Make sure it is between the armature and
the rotor friction surfaces (Figure 63).
9. Tighten the lock nuts until there is slight binding on
the feeler gauge but it can be moved easily within the
air gap (Figure 63).
10. Repeat this for the remaining slots.
11. Check each slot again and make slight adjustments
until the feeler gauge between the rotor and armature
with very slight contact between them.
1. Slot
2. Adjusting nut
12. Install the clutch to the engine shaft with the key.
13. Apply blue Loctite® (or equivalent) to the center
bolt.
14. While holding the crank shaft at the back of the
machine, install the center bolt and torque it to 50
ft-lbs (68 N-m) (Figure 62).
15. Install the rubber clutch strap to the mower frame
with the two previously removed bolts and nuts
(Figure 62).
16. Pull up on the spring loaded idler for the PTO drive
belt and install it onto the clutch pulley (Figure 61).
17. Plug in the electric connection for the clutch
(Figure 62).
18. Install the front engine panel.
19. Lower down the seat.
46
Figure 63
3. Feeler gauge