Checking And Cleaning The Hydraulic-Unit Shrouds; Brake Maintenance; Adjusting The Parking Brake - Toro 74901 Operator's Manual

Checking and Cleaning the
Hydraulic-unit Shrouds
Service Interval: Before each use or daily
1. Disengage the PTO and set the parking brake.
2. Stop the engine, remove the key, and wait for all moving
parts to stop before leaving the operating position.
3. Move the seat forward.
4. Clean the debris and grass from the hydraulic-unit
shrouds (Figure 73).
5. Position the seat.
Figure 73
1. Hydraulic-unit shrouds

Brake Maintenance

Adjusting the Parking Brake

Service Interval: After the first 100 hours—Check the
parking-brake adjustment.
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 Using the Drive-wheel-release Valves
(page 27).
8. Measure the overall length of the compression spring.
The correct length should be between 3.8 and 4.0 cm
(1-1/2 and 1-9/16 inches).
Note: 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
locknut until the spring length is between 3.8 and 4.0
cm (1-1/2 and 1-9/16 inches) as shown in Figure 74.
Note: Do not allow the cable to turn when the nuts
are being loosened.
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