Toro Groundsmaster 4500-D Operator's Manual page 82

Figure 121
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.
Hydraulic Fluid Capacity: 28.4 L (7.50 US gallons)
If the fluid becomes contaminated, contact your
authorized Toro distributor, because the system must
be flushed. Contaminated fluid looks milky or black
when compared to clean oil.
1. Park the machine on a level surface, engage the
parking brake, lower the cutting units, shut off
the engine, and remove the key.
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2. Raise the hood.
3. Disconnect the case return line from the bottom
of the reservoir and let the hydraulic fluid flow
into a large drain pan.
4. Install the hose when the hydraulic fluid stops
draining.
5. Fill the reservoir with hydraulic fluid; refer to
Checking the Hydraulic-Fluid Level (page
Important:
specified. Other fluids could cause system
damage.
6. Install the reservoir cap.
7. Turn the key in the key switch to the O
to start the engine. Use all the hydraulic controls
to distribute hydraulic fluid throughout the
system, and check for leaks.
8. Turn the key in the key switch to the O
position.
9. Check the fluid level and add enough to raise
level the level to the F
Do not overfill.
Replacing the Hydraulic Filters
Service Interval: Every 1,000 hours—If you
Every 800 hours—If you are not using the
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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 Toro replacement filters Part No. 94-2621 for
the rear (cutting units) of the machine and Part No.
75-1310 for the front (charge) of the machine.
Important:
Using another filter may void the
warranty on some components.
1. Tilt the operator's seat to access the
mower-pressure filter; refer to
Hydraulic Lift Compartment (page 62)
82
Use only the hydraulic fluids
mark on the dipstick.
ULL
are using the recommended
hydraulic fluid, replace the
hydraulic filter (sooner if the service
interval indicator is in the red zone).
Accessing the
81).
position
N
FF