Brake Maintenance; Adjusting The Parking Brake - Toro 78922 Operator's Manual

Figure 73
1. Hydraulic unit shrouds

Brake Maintenance

Adjusting the Parking Brake

Service Interval: After the first 100 hours
Every 500 hours thereafter
Check to make sure 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. Drive the machine onto a level surface.
2. Disengage the blade control switch (PTO), move the
motion control levers to the neutral locked position
and set the parking brake.
3. Stop 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.
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.
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 the Using the Drive Wheel
Release Valves section in Operation.
8. Measure the overall length of the compression
spring. The correct length should be between 1-1/2
and 1-9/16 inches (3.8 and 4.0 cm). If the spring
length is within this range, no adjustment is needed.
If it is not, proceed to step 9.
9. Hold the threaded rod end with a tool and adjust
the lock nut until the spring length is between 1-1/2
and 1-9/16 inches (3.8 and 4.0 cm) (Figure 74). Do
Not allow the cable to turn when the nuts are being
loosened.
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