Operator's Manual

44
3
1
2
m–5615
4
Figure 55
1. Cap
2. Baffle
3. Cold fluid level—full
4. Hot fluid level—full
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.
Warning
Replacing the Primary Hydraulic Filter
Change the primary hydraulic filter:
• After the first 250 operating hours and then yearly
after that.
Use summer filter above 32°F (0°C)
Use winter filter below 32°F (0°C)
1. Disengage the PTO, move the motion control levers to
the neutral locked position 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.
Important Do not substitute automotive oil filter or
severe hydraulic system damage may result.
3. Place drain pan under filter, remove the old filter and
wipe the filter adapter gasket surface clean (Fig. 57).
1
M–4763
Figure 56
1. Primary hydraulic filter
4. Apply a thin coat hydro fluid to the rubber gasket on
the replacement filter (Fig. 57).
5. Install the replacement primary 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
(Fig. 57).
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
Bleeding Hydraulic System, page 45.
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.
m–1256
1
2
3
Figure 57
1. Hydraulic filter
2. Gasket
3. Adapter