Hydraulic System Maintenance; Changing The Hydraulic Oil And Filter; Checking The Hydraulic Lines And Hoses - Toro Greensmaster TriFlex 3400 Series Operator's Manual

Hydraulic System
Maintenance
Changing the Hydraulic Oil
and Filter
Service Interval: After the first 50 hours
Every 800 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.
1. Clean the area around the filter mounting area
(Figure 52). Place a drain pan under the filter
and remove the filter.
Note:
If the oil is not going to be drained,
disconnect and plug the hydraulic line going to
the filter.
Figure 52
1. Hydraulic oil 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. The filter
should now be sealed.
3. Fill the hydraulic reservoir with hydraulic oil; refer
to Checking the Hydraulic Fluid Level (page
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.
5. Stop the machine, recheck the fluid level and
replenish as required.
6. Dispose of the oil and filter properly.
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.
g014619
25).
43