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Hydraulic System
Maintenance
Changing the Hydraulic Filter
Service Interval: After the first 10 hours
Every 200 hours/Yearly (whichever comes first)
Use a genuine Toro replacement filter, Part 86-3010.
Important: Use of any other filter may void the warranty
on some components.
1. Position the machine on a level surface, lower the
cutting units, stop the engine, engage the parking brake,
and remove the key from the ignition switch.
2. Clean around the filter mounting area. Place a drain
pan under the filter
Figure 64
1. Hydraulic filter
3. Lubricate the new filter gasket and fill the filter with
hydraulic fluid.
4. Ensure that the filter mounting area is clean. Screw the
filter on until the gasket contacts the mounting plate;
then tighten the filter 1/2 turn.
5. Start the engine and let it run for about 2 minutes to
purge air from the system. Stop the engine and check
for leaks.
Changing the Hydraulic Fluid
Service Interval: Every 400 hours
If the fluid becomes contaminated, contact your local Toro
distributor because the system must be flushed. Contaminated
fluid looks milky or black when compared to clean oil.
1. Position the machine on a level surface, lower the
cutting units, stop the engine, engage the parking brake,
and remove the key from the ignition switch.
2. Disconnect the large hydraulic hose
the reservoir and let the hydraulic fluid flow into a
drain pan.
(Figure
64) and remove the filter.
(Figure
65) from
1. Hydraulic hose
3. Install the hydraulic hose when hydraulic fluid stops
draining.
4. Fill the reservoir
liters (3.5 US gallons) of hydraulic fluid; refer to
Checking the Hydraulic System (page
Important: Use only the hydraulic fluids
specified. Other fluids could cause system
damage.
1. Hydraulic fill cap
5. Install the reservoir cap. Start the engine and use all of
the hydraulic controls to distribute the hydraulic fluid
throughout the system.
6. Check for leaks; then stop the engine.
7. Check the fluid level and add enough to raise the level
to Full mark on the dipstick.
Important: Do not overfill the reservoir.
44
Figure 65
(Figure
66) with approximately 13.2
22).
Figure 66
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