Toro GreensPro 1240 Service Manual page 86

Filtering the Closed-Loop Traction Circuit (GreensPro 1260)
(continued)
Hydraulic System: Service and Repairs
5. Check and fill the hydraulic tank with the correct quantity of new hydraulic
fluid; refer to the Operator's Manual.
6. Start the engine and run it at low-idle speed. Check for and correct any
hydraulic leaks before proceeding.
Use extreme caution when performing this test. The drive roller will
be rotating during the test.
While engaging the traction circuit, monitor the indicator on the high
flow hydraulic filter. If the indicator shows red, either reduce the
pressure on the motion control pedal or reduce the engine speed to
decrease the hydraulic flow through the filter.
7. With the engine running at low-idle speed, slowly press the LEFT motion
control pedal to the forward direction to allow flow through the traction circuit
and high-flow filter. Keep the traction circuit engaged in forward for 5 minutes
while gradually increasing both forward pressure on the motion control pedal
and engine speed. Monitor the filter indicator to ensure that the green color
is showing during operation.
Note: With the engine running at high-idle speed and left motion control
pedal pressed to the forward direction, periodically engage parking brake to
increase pressure in the traction circuit.
If you are using a filter that is not bidirectional, do not press the
RIGHT motion control pedal. If the flow is reversed when using a
filter that is not bidirectional, unwanted material from the filter will
again enter the traction circuit.
8. With a bidirectional hydraulic filter installed and the engine running at
high-idle speed, alternately press the left motion control pedal and the right
motion control pedal. While monitoring the filter indicator, continue this
process for 5 more minutes.
9. Shut off the engine.
10. Remove the temporary hydraulic filter from the machine and install any
disconnected hydraulic hoses; refer to
Tubes (page 5–12).
11. Check the hydraulic fluid level in the hydraulic tank and adjust as necessary;
refer to the Operator's Manual.
12. Operate the machine and check for leaks before returning the machine to
service.
CAUTION
IMPORTANT
IMPORTANT
Installing the Hydraulic Hoses and
Page 5–40 GreensPro ™ 1240/1260
14211SL Rev A