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Figure 60
1. Hydrostat drive belt
3. Replace the belt.
4. Reverse the procedure to tension the spring.
2. Spring end
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 No. 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. Pinch off the hose to the filter mounting plate.
3. Clean around the filter mounting area. Place a drain
pan under the filter (Figure 61) and remove the filter.
1. Hydraulic filter
4. Lubricate the new filter gasket and fill the filter with
hydraulic fluid.
5. 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.
6. Release the hose to the filter mounting plate.
7. Start the engine and let it run for about two 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. Turn the engine off and raise the hood.
2. Disconnect the hydraulic line (Figure 62) or remove the
hydraulic filter (Figure 61) and let the hydraulic fluid
45
Figure 61
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