Brake Maintenance; Adjusting The Parking Brake - Toro 74946 Operator's Manual

Brake Maintenance

Adjusting the Parking Brake

Service Interval: After the first 100 hours
Every 500 hours thereafter
Check that the brake is adjusted properly before adjusting.
1. Drive the machine onto a level surface.
2. Disengage the blade-control switch (PTO), move the
motion-control levers to the N
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 and support the machine
with jack stands.
DANGER
Mechanical or hydraulic jacks may fail to
support machine and cause a serious injury.
• Use a jack stand when supporting the
machine.
• Do not use hydraulic jacks.
5. Remove the rear tires from the machine.
6. Remove any debris from the brake area.
7. Rotate the drive-wheel release handle to the released
position. Refer to Using the Drive-Wheel Release
Valves (page 29).
8. Check if there is a visible gap between the L-bracket
and the linkage stop
Figure 75
Left Side Shown
1. L-bracket
2. Linkage stop
3. Gap
- position,
EUTRAL LOCK
(Figure 75).
4. Rear-linkage assembly
5. Caliper
6. Wheel hub
9. Disengage the parking brake.
10. Turn the wheel hub by hand in both directions relative
to the caliper.
Note: 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
gap 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
(page 29).
16. Install the rear tires and torque the lug nuts; refer to
Checking the Wheel Lug Nuts (page
17. Remove the jack stands.
54
13 until you achieve a visible
Using the Drive-Wheel Release Valves
48).