Brake Maintenance; Adjusting The Parking Brake - Toro Z Master Professional 7500-D Series Operator's Manual

Brake Maintenance

Adjusting the Parking
Brake
Service Interval: After the first 100 hours
Every 400 hours
Check to ensure that parking brake is adjusted
properly. This procedure must be followed after the
first 100 hours or when a brake component has been
removed or replaced.
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. Raise the rear of the machine up and support
the machine with jack stands.
4. Remove the rear tires from the machine.
5. Remove any debris from the brake area.
6. Release the drive wheels; refer to
Drive-Wheel Release Valves (page
7. Measure the length of the link assembly
59).
Note:
If the link assembly is attached in the
front position, the length should be 21.9 cm
(8.63 inches); if it is attached in the rear position,
the length should be 23.2 cm (9.15 inches).
1. Front location
Using the
2. Rear location
34).
3. 8.3 cm (3-1/4 inches)
(Figure
4. Gap
8.
9.
10.
11.
C.
12.
53
Figure 59
Measure the length of the spring
Note:
The measurement should be 8.3 cm
(3-1/4 inches).
When you achieve the correct spring length,
check to see if there is a visible gap between the
trunion and the shoulder.
Disengage the parking brake and turn the wheel
hub by hand in both directions.
Note:
The wheel hub should move freely.
If a gap is needed or the wheel hub does move
freely, do the following:
A. Disengage the parking brake.
B. Disconnect and fine-tune the rear linkage
assembly.
•
Shorten the link to create a gap.
•
Lengthen the link to allow wheel hub
movement.
Connect the rear linkage assembly.
Engage the parking brake and check the gap.
g228555
5. Spring
6. Link assembly
7. Length
(Figure 59).