Figure 75
1.
Hot fluid level-full
2.
Cold fluid level-full
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.
Replacing the Hydraulic Filter and
Hydraulic Oil
Service Interval:
After the first 25 hours
Every 250 hours—Change the
hydraulic filter and hydraulic oil when
using Mobil
®
1 oil.
Every 500 hours—Change the
hydraulic filter and hydraulic oil
when using Toro
®
HYPR-OIL
™
500
hydraulic oil.
Use summer filter above 32°F (0°C)
Use winter filter below 32°F (0°C)
Note:
At the yearly interval, change the hydraulic oil
when the oil filter is changed.
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
(Figure 76).
Figure 76
1.
Hydraulic filter
4. Apply a thin coat hydro fluid to the rubber gasket on
the replacement filter (Figure 77).
5. If changing the oil, allow the hydraulic oil to drain
from the tank when the oil filter is removed.
6. Install the replacement hydraulic filter onto the filter
adapter. Do not tighten.
7. 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 77).
8. Clean up any spilled fluid.
9. Add fluid to the cold level of the baffle in the
hydraulic tank.
10. 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.
11. Recheck the fluid level while the fluid is warm. The
fluid should be between cold and hot.
12. If required, add fluid to the hydraulic tank. Do not
overfill.
52
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