Check and Clean the Hydraulic
Units
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 units
(Figure 70).
5.
Position the seat.
g0151 17
Figure 70
1.
Hydraulic units
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. Perform
this procedure 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 25).
8.
Measure the overall length of the compression spring.
Ensure the correct length is between 3.8 and 4.0 cm
(1-1/2 and 1-9/16 inches). 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 3.8 and 4.0
cm (1-1/2 and 1-9/16 inches) (Figure 71). Do not allow
the cable to turn when the nuts are being loosened.
45
Summary of Contents for 74959
Page 62: ...Schematics G020788 Electrical Schematic Rev A 62 ...
Page 63: ...Notes 63 ...
