Hydraulic System Maintenance; Changing The Hydraulic System Oil And Filter; Checking The Hydraulic Lines And Hoses - Toro 08703 Operator's Manual

Hydraulic System
Maintenance
Changing the Hydraulic
System Oil and Filter
Service Interval: After the first 8 hours
Every 400 hours
The hydraulic system filter must be changed initially after the
first 8 hours of operation, and thereafter every 400 hours of
operation or yearly, whichever occurs first. Use a genuine
Toro oil filter for replacement. The hydraulic oil must be
changed every 400 hours of operation or yearly, whichever
occurs first.
1. Park the machine on a level surface and turn the engine
off.
2. Loosen the 2 screws securing the center shroud to the
machine and remove the shroud (Figure 39).
Figure 39
1. Center shroud
3. Place a drain pan under the hydraulic oil filter which is
located on the left side of the machine (Figure 40).
Figure 40
1. Hydraulic filter
4. Clean the area around the filter mounting area. Place
a drain pan under filter. Slowly loosen, but do not
remove, the hydraulic filter until oil flows past the
gasket and drips down the side of the filter.
Note: If the machine is equipped with a remote
hydraulics kit, the suction hose can be removed from
the pump to drain the hydraulic oil.
5. Remove the filter when the oil flow slows.
6. Lubricate the sealing gasket on replacement filter with
hydraulic fluid and hand turn it on until the gasket
contacts filter head. Then tighten 3/4 turn further.
Filter should now be sealed.
7. Fill hydraulic tank with hydraulic oil until level is up to
the necked down area of the dipstick. Do not overfill.
Refer to Checking the Hydraulic System.
8. Start and run the engine. Operate the lift cylinder until
it extends and retracts and forward and reverse wheel
motion is achieved.
9. Stop the engine and check the oil level in reservoir, add
oil if necessary.
10. Check all connections for leaks.
11. Install the center shroud.
12. Dispose of oil properly.
Checking the Hydraulic Lines
and Hoses
Service Interval: Before each use or daily
Check the hydraulic lines and hoses daily for leaks, kinked
lines, loose mounting supports, wear, loose fittings, weather
deterioration, and chemical deterioration. Make all necessary
repairs before operating.
WARNING
Hydraulic fluid escaping under pressure can
penetrate skin and cause injury.
• Make sure all hydraulic fluid hoses and lines are
in good condition and all hydraulic connections
and fittings are tight before applying pressure to
the hydraulic system.
• Keep your 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.
• Seek immediate medical attention if fluid is
injected into skin.
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