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Every 2,000 hours—If you are using the
recommended hydraulic fluid, change the
hydraulic-fluid filter.
Hydraulic fluid quantity: approximately 18.9 L (5
US gallons)
If the fluid becomes contaminated, have your Toro
distributor flush the system. Contaminated fluid looks
milky or black when compared to clean fluid.
1.
Clean the area around the left filter mounting
area
(Figure
52). Place a drain pan under the
filter and remove the filter.
1. Hydraulic filter
Note:
If you are not going to drain the hydraulic
the fluid, disconnect and plug the hydraulic line
going to the filter.
2.
Fill the replacement filter with the specified
hydraulic fluid, lubricate the sealing gasket, and
thread it on to the filter head until the gasket
contacts the head. Then tighten the filter 3/4
turn further.
3.
Repeat step
1
and
(Figure
53).
1. Hydraulic filter
4.
Fill the hydraulic reservoir with approximately
18.9 L (5 US gallons) of the specified hydraulic
fluid; refer to
Hydraulic Fluid Specifications
(page 38)
and
Checking the Hydraulic-Fluid
Level (page
39).
5.
Start the machine and run it at idle for 3 to 5
minutes to circulate the fluid and remove any air
Figure 52
2
for the right hydraulic filter
Figure 53
trapped in the system. Shut off the engine and
check the fluid level.
Note:
Dispose of the old hydraulic fluid and filter
properly.
Checking the Hydraulic
Lines and Hoses
WARNING
Hydraulic fluid escaping under pressure can
penetrate skin and cause injury.
• Ensure that 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
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pinhole 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.
• Get immediate medical help if fluid is
injected into skin.
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.
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