Bleeding The Hydraulic System - Toro 30071 Operator's Manual

13. Stop the engine and check for leaks.
Note: If 1 or both wheels will not drive, refer to
Bleeding the Hydraulic System (page 36).
14. Recheck level and add fluid, if required. Do not
overfill.

Bleeding the Hydraulic System

The system is self bleeding, however, it may be necessary
to bleed the system if the fluid is changed or after work is
performed on the system.
1. Disengage the PTO and set the parking brake.
2. Stop the engine and wait for all moving parts to stop
before leaving the operating position.
3. Raise the rear of the machine up onto jack stands high
enough to raise the drive wheels off the ground.
4. Start the engine and move the throttle control to the
idle position.
If the drive wheel does not rotate, it is possible to assist
the purging of the system by carefully rotating the tire
in the forward direction.
5. Check the hydraulic fluid level. As it drops, add fluid as
required to maintain the proper level.
6. Repeat this procedure for the opposite wheel.
7. Thoroughly clean the area around each of the charge
pump housings.
Checking the Hydraulic Lines
Service Interval: Every 100 hours
Check hydraulic lines and hoses for leaks, loose fittings, kinked
lines, loose mounting supports, wear, weather and chemical
deterioration. Make necessary repairs before operating.
Note: Keep areas around hydraulic system clean from grass
and debris build up.
WARNING
Hydraulic fluid escaping under pressure can
penetrate skin and cause injury.
• If hydraulic fluid is injected into the skin it
must be surgically removed within a few hours
by a doctor familiar with this type of injury.
Gangrene may result if this is not done.
• Keep body and hands away from pin hole leaks
or nozzles that eject high pressure hydraulic
fluid.
• Use cardboard or paper to find hydraulic leaks.
• Safely relieve all pressure in the hydraulic system
before performing any work on the hydraulic
system.
• Make sure all hydraulic fluid hoses and lines are
in good condition and all hydraulic connections
and fittings are tight before applying pressure to
hydraulic system.
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