Brake Maintenance; Adjusting The Parking Brake - Toro 74943 Operator's Manual

Brake Maintenance

Adjusting the Parking
Brake
Service Interval: After the first 100 hours
Every 500 hours thereafter
Note:
Perform this procedure at the recommended
service interval or when a brake component has been
removed or replaced.
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. Raise the back of the machine and support the
machine with jack stands.
CAUTION
Raising the machine for service
or maintenance relying solely on
mechanical or hydraulic jacks could be
dangerous. The mechanical or hydraulic
jacks may not be enough support or may
malfunction allowing the machine to fall,
which could cause injury.
Do not rely solely on mechanical
or hydraulic jacks for support. Use
adequate jack stands or equivalent
support.
4. Remove the rear tires from the machine.
5. Remove any debris from the brake area.
6. Rotate the drive-wheel release handle to
the released position; refer to
Drive-Wheel-Release Valves (page
7. Check to see if there is a visible gap between
the L-bracket and the linkage stop
1. L-bracket
2. Linkage stop
3. Gap
8.
9.
10.
11.
12.
Using the
34).
13.
(Figure 87).
14.
15.
16.
58
Figure 87
Left Side Shown
Disengage the parking brake, the lever should
be in the down position.
Turn the wheel hub by hand in both directions
relative to the caliper; the wheel hub should
move freely between the caliper.
If a gap is needed or the wheel hub does not
move freely:
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.
C. Connect the rear linkage assembly.
Engage the parking brake and check the gap.
Repeat steps 8 through
achieved and the wheel hub rotates freely.
Repeat this procedure for the brake on the
opposite side.
Rotate the drive-wheel release handle to
the operating position; refer to
Drive-Wheel-Release Valves (page
Install the rear tires and torque the lug nuts;
refer to Checking the Wheel Lug Nuts (page
Remove the jack stands.
g026961
4. Rear linkage assembly
5. Caliper
6. Wheel hub
12 until a visible gap is
Using the
34).
53).