Hydraulic System Maintenance; Changing The Hydraulic Oil And Filter; Checking The Hydraulic Lines And Hoses - Toro 04358 Greensmaster 3150 Operator's Manual

Hydraulic System
Maintenance
Changing the Hydraulic Oil
and Filter
Change the hydraulic oil after every 800 operating hours.
If the oil becomes contaminated, contact your local Toro
distributor because the system must be flushed. Contaminated
oil looks milky or black when compared to clean oil.
Change the filter:
•
After the first 50 operating hours
•
After every 800 operating hours
1. Clean the area around the filter mounting area
(Figure 57). Place a drain pan under the filter and
remove the filter.
Figure 57
1. Hydraulic filter
Note: If the oil is not going to be drained, disconnect
and plug the hydraulic line going to the filter.
2. Fill the replacement filter with the appropriate hydraulic
fluid, lubricate the sealing gasket, and hand turn it until
the gasket contacts the filter head. Then tighten 3/4
turn further.
3. Fill the hydraulic reservoir and small auxiliary tank with
approximately 32 l (8-1/2 gallons) of hydraulic oil; refer
to Checking the Hydraulic Fluid Level (page 20).
4. Start the machine and run it at idle for 3 to 5 minutes
to circulate the fluid and remove any air trapped in the
system. Stop the machine and recheck the fluid level.
5. Dispose of the oil and filter properly.
Note: If the leak detector alarm sounds, turn the key
off and wait a few minutes for the oil level to equalize
in the tanks. Recheck the fluid level and add oil, if
required.
Checking the Hydraulic Lines
and Hoses
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.
• 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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