Brake Maintenance; Adjusting The Parking Brake; Belt Maintenance; Inspecting The Belts - Toro Z Master Professional 7000 Series Operator's Manual

Brake Maintenance

Adjusting the Parking
Brake
Service Interval: Every 25 hours
Every 200 hours
1. Park the machine on a level surface, disengage
the blade-control switch (PTO), 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. Measure the length of the spring
Note:
The measurement should be 64 mm
(2-1/2 inches) between the washers.
4. If adjustment is necessary, disengage the
parking brake, loosen the jam nut below the
spring and adjust the nut directly below the
spring (Figure 70).
5. Turn the nut until the correct measurement is
obtained.
Note:
Turn the nut clockwise to shorten spring
length and turn counter-clockwise to lengthen
the spring.
6. Tighten the 2 nuts together.
7. Engage the parking brake and check the
measurement of the spring again.
8. If an adjustment is necessary, repeat the
procedures above.
9. Repeat on the opposite side of machine.
Figure 70
1. Brake lever in engaged
position
2. Spring—64 mm (2-1/2
inches)
(Figure 70).
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3. Adjusting nut and jam nut

Belt Maintenance

Inspecting the Belts

Service Interval: Every 100 hours
Replace the belt if it is worn. The signs of a worn belt
include squealing while the belt is rotating; the blades
slipping while cutting grass; and frayed edges, burn
marks, and cracks on the belt.

Replacing the Mower Belt

Squealing when the belt is rotating, blades slipping
when cutting grass, frayed belt edges, burn marks
and cracks are signs of a worn mower belt. Replace
the mower belt if any of these conditions are evident.
1. Park the machine on a level surface, disengage
the blade-control switch, 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. Remove the belt covers
1. Belt cover
2. Latch
4. For 72-inch mowers, loosen the idler plate bolts
holding the idler plate
5. Remove the idler spring.
6. Remove the belt guide on the spring-loaded
idler pulley shown in
7. Remove the existing belt.
8. Install the new belt around the mower pulleys
and the gearbox pulley under the engine
72).
56
(Figure 71).
Figure 71
3. Insert slot into the tab
(Figure 74).
Figure 72 and Figure
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74.
(Figure