Brake Maintenance; Adjusting The Parking Brake - Toro 74933 Operator's Manual

Brake Maintenance

Adjusting the Parking Brake

Service Interval: After the first 100 hours
Every 500 hours thereafter
Ensure that the brake calipers are adjusted properly before
adjusting the parking brake.
Note: Perform this procedure also when a brake component
has been removed or replaced.
DANGER
Mechanical or hydraulic jacks may fail to support
machine and cause a serious injury.
• Use jack stand when supporting machine.
• Do not use hydraulic jacks.
1. Drive the machine onto a level surface.
2. Disengage the blade-control switch (PTO), move the
motion-control levers to the
and engage the parking brake.
3. Shut off the engine, wait for all moving parts to stop,
and remove the key.
4. Raise the back of the machine up and support the
machine with jack stands.
5. Remove the rear tires from the machine.
6. Remove any debris from the brake area.
7. Rotate the wheel-release handle to the released
position. Refer to Using the Drive-Wheel-Release
Valves (page 28).
8. Check to see if there is a visible gap between the
L-bracket and the linkage stop
- position
NEUTRAL LOCK
(Figure 74).
Left Side Shown
1. L-bracket
2. Linkage stop
3. Gap
9. Disengage the parking brake, the lever should be in
the down position.
10. Turn the wheel hub by hand in both directions relative
to the caliper; the wheel hub should move freely
between the caliper.
11. 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.
12. Engage the parking brake and check the gap.
13. Repeat steps 9 through
and the wheel hub rotates freely.
14. Repeat this procedure for the brake on the opposite
side.
15. Rotate the drive wheel release handle to the operating
position. Refer to
Valves (page 28).
16. Install the rear tires and torque the lug nuts. Refer to
Checking the Wheel Lug Nuts (page 47)
17. Remove the jack stands.
51
Figure 74
4. Rear-linkage assembly
5. Caliper
6. Wheel hub
13 until a visible gap is achieved
Using the Drive-Wheel-Release