Brake Maintenance; Adjusting The Parking Brake - Toro Z Master Z597-D Operator's Manual

Figure 57
1. Antifreeze overow bottle
Cleaning the Cooling System
Clean the cooling system daily before each use.
1. Position the machine on a level surface, stop
the engine, and set the parking brake.
Important: Before starting the engine,
clean grass from the pump drive belt
compartment. Check more often in dry
conditions.
2. Unlatch the seat, tilt the seat up and raise the
rubber flap above the drive belt compartment.
3. Remove debris from the drive belt
compartment and hydraulic pumps.
4. Remove debris from the screen on the engine
cover.
5. Tilt the engine cover forward.
6. Remove debris from the radiator core and
engine.
Important: Do not damage the radiator
cooling fins.
7. Inspect the seals on the engine cover and
replace them if needed.
8. Close the engine cover and tilt the seat back.
Changing the Engine Coolant
Change the engine coolant every 2 years.
2. Indicator line on side of
overow bottle
Contact an Authorized Service Dealer for changing
the coolant.

Brake Maintenance

Adjusting the Parking Brake

1. Disengage the brake lever (lever down).
2. Measure the length of the spring. The
measurement should be 2-3/4 inch (70 mm)
between the washers (Figure 58).
3. If an adjustment is necessary, loosen the jam
nut below the spring and tighten the nut
directly below the yoke (Figure 58). Turn the
nut until the correct measurement is obtained.
Tighten the two nuts together and repeat on
the opposite side of the unit.
4. Turn the nuts clockwise to shorten the spring
length and counterclockwise to lengthen the
spring.
5. Engage the parking brake, lever up.
6. Measure the distance between the spring
bracket and the adjusting nut under spring
bracket. The measurement should be
1/4-5/16 inch (5-8 mm) (Figure 58).
7. If an adjustment is necessary, loosen the jam
nut directly above the trunion roller. Turn
the lock nut below the trunion roller until the
correct measurement is obtained (Figure 58).
8. Tighten the jam nut directly above the trunion
roller (Figure 58).
Note: If the 1/4-5/16 inch (5-8 mm) can not
be achieved, remove a pin from either yoke at
the ends of the brake rod. Adjust the length
of the rod so 1/4-5/16 inch (5-8 mm) can be
achieved and install the brake rod.
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