Toro Groundsmaster 4000 Operator's Manual page 74

Figure 116
Changing the Hydraulic Fluid
Service Interval: Every 2,000 hours—If you
are using the recommended
hydraulic fluid, change the
hydraulic fluid.
Every 800 hours—If you are not using the
recommended hydraulic fluid or have ever
filled the reservoir with an alternative fluid,
change the hydraulic fluid.
If the hydraulic fluid becomes contaminated, the
hydraulic system must be flushed. Contaminated
fluid looks milky or black when compared to clean
oil. Contact your authorized Toro distributor for
assistance.
1. Park the machine on a level surface, lower the
cutting units, shut off the engine, and remove
the key.
2. Remove the drain plug from the bottom, front of
the reservoir and let the hydraulic fluid flow into
a large drain pan.
3. Install and tighten the plug when the hydraulic
fluid stops draining.
4. Fill the reservoir
refer to Changing the Hydraulic Fluid (page
Important:
specified. Other fluids damage the system.
1. Hydraulic reservoir
5. Install the reservoir cap, start the engine,
and use all the hydraulic controls to distribute
hydraulic fluid throughout the system.
Note:
Also check for leaks; then shut off the
engine.
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6. Check the fluid level and add enough to raise
level the level to the Full mark on the dipstick.
Note:
Do not overfill.
Replacing the Hydraulic Filters
Service Interval: Every 1,000 hours—If you
Every 800 hours—If you are not using the
recommended hydraulic fluid or have ever
filled the reservoir with an alternative fluid,
replace the hydraulic filter (sooner if the service
interval indicator is in the red zone).
Use the following Toro replacement filters:
•
Part No. 94-2621 for the rear (cutting unit) of the
machine
•
Part No. 75-1310 for the front (charge) of the
machine
74
(Figure 117) with hydraulic fluid;
Use only the hydraulic fluids
Figure 117
are using the recommended
hydraulic fluid, replace the
hydraulic filter (sooner if the service
interval indicator is in the red zone).
74).
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