Toro Z Master 4000 Series Operator's Manual page 20

3. Use a wrench (1-1/2 inches) to hold the spindle
shaft, as you remove the hex nut (3/4 inch) and
washer from the spindle shaft
Note:
Retain the hex nut (3/4 inch) and washer.
Figure 21
1. Hex nut (3/4 inch)
2. Washer
4. Insert the threaded studs on pulley mount
through the holes in the deck pulley
5. Secure the deck pulley to the spindle shaft using
the previously removed hex nut (3/4 inch) and
washer (Figure 22).
6. Torque the hex nut (3/4 inch) to 176 to 217 N∙m
(130 to 160 ft-lb).
7. Arrange the blower pulley onto the threaded
studs and loosely install the 3 locknuts (3/8 inch)
as shown in Figure
8. Rotate the blower pulley until the narrow slots
stop on the studs.
9. Torque the 3 locknuts (3/8 inch) to 18 N∙m (13
ft-lb).
Ensure that the pulley does not rotate while
torquing the locknuts.
Note:
If the blower pulley is not centered on
the studs, it could cause premature damage to
the blower belt.
(Figure 21).
3. Right spindle shaft
(Figure
22.
g341576
1. Locknut (3/8 inch)
2. Blower pulley
22).
3. Hex nut (3/4 inch)
4. Washer
20
Figure 22
5. Existing deck pulley
6. Pulley mount
7. Right spindle shaft
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