Replacing The Hydraulic Filters; Checking The Hydraulic Lines And Hoses; Adjusting The Counterbalance Pressure - Toro 30609 Operator's Manual

Replacing the Hydraulic
Filters
Service Interval: After the first 200 hours
Every 800 hours
Use Toro replacement filters Part No. 94-2621 for
the rear (mower deck) of the machine and Part No.
75-1310 for the front (charge) of the machine.
Important:
Use of any other filter may void the
warranty on some components.
1. Position the machine on a level surface, lower
the mower decks, shut off the engine, engage
the parking brakes, and remove the ignition key.
2. Replace the hydraulic filters
Figure 97
3. Start the engine and let it run for about 2 minutes
to purge air from the system and shut off the
engine and check for leaks.
Checking the Hydraulic
Lines and Hoses
Service Interval: Every 2 years
Inspect 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 the machine.
(Figure 97).
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Adjusting the
Counterbalance Pressure
The counterbalance test port is used to test the
pressure in the counterbalance circuit
The recommended counterbalance pressure is
2,241 kPa (325 psi). To adjust the counterbalance
pressure, loosen the locknut, rotate the adjusting
screw (Figure 98) clockwise to increase the pressure,
or counterclockwise to decrease the pressure and
tighten the locknut. The engine must be running, the
deck lowered and in the float position to check the
pressure.
Note:
The caster wheels of all 3 mower decks
should remain on the ground when adjusting the
counterbalance and with counterbalance applied.
Figure 98
1. Counterbalance-adjusting
screw
(Figure 98).
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2. Counterbalance-test port