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2. Stop the engine, remove the key, and wait for all
moving parts to stop before leaving the operating
position.
Important: Do not substitute automotive oil
filter or severe hydraulic system damage may
result.
3. Place a drain pan under filter, remove the old filter
and wipe the filter adapter gasket surface clean
(Figure 55).
1. Hydraulic filter
4. Apply a thin coat to the rubber gasket on the
replacement filter (Figure 56).
5. Install the replacement hydraulic filter onto the filter
adapter. Do not tighten.
6. Fill the hydraulic tank with hydraulic fluid until the
fluid overflows the filter and then turn the oil filter
clockwise until the rubber gasket contacts the filter
adapter, then tighten the filter an additional 1/2 turn
(Figure 56).
7. Clean up any spilled fluid.
8. Add fluid to the cold level of the baffle in the
hydraulic tank.
9. Start the engine and let it run for about two minutes
to purge air from the system. Stop the engine and
check for leaks. If one or both wheels will not drive,
refer to Bleeding Hydraulic System.
10. Recheck the fluid level while the fluid is warm. The
fluid should be between cold and hot.
11. If required, add fluid to the hydraulic tank. Do not
overfill.
Figure 55
1. Hydraulic filter
2. Gasket
Bleeding the Hydraulic System
The traction system is self bleeding, however, it may be
necessary to bleed the system if fluid is changed or after
work is performed on the system.
1. Raise rear of the machine so wheels are off the
ground and support with jack stands.
2. Start the engine and run at low idle speed. Engage
the lever and traction on one side and spin the wheel
by hand.
3. When the wheel begins to spin on its own, keep it
engaged until wheel drives smoothly. (minimum
2 minutes)
4. Check the hydraulic fluid level and add as required
to maintain proper level.
5. Repeat this procedure on the opposite wheel.
Checking the Hydraulic Hoses
Service Interval: Every 100 hours
Check the hydraulic hoses for leaks, loose fittings,
kinked lines, loose mounting supports, wear, weather
and chemical deterioration. Make necessary repairs
before operating.
Note: Keep areas around the hydraulic system clean
from grass and debris build up.
44
Figure 56
3. Adapter
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