Hydrostatic Pump Efficiency Test - New Holland LS140 Workshop Manual

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HYDROSTATIC PUMP EFFICIENCY TEST

This test can be used to check the operating efficien-

cy of the pump.

IMPORTANT: When connecting a flowmeter into the

pump circuit, make sure the meter is connected prop-

erly and the control lever is stroked in the direction

being tested. If not, the hydrostatic system and/or

flowmeter may be damaged.

Efficiency Test Procedure

1. Raise the boom and rest on the boom locks.

2. Put the Service/Run switch in the "SERVICE"

3. Disengage the parking brake.

4. Securely block the skid-steer loader with all four

wheels off the ground.

SECTION 29 - HYDROSTATIC TRANSMISSION

Failure to securely support the skid-steer loader

could result in movement of the loader during

testing causing serious injury or damage to the

5. Raise the operator's seat and latch in the raised

6. Remove the step shield.

7. Remove the high-pressure line from the pump,

for the direction to be tested.

8. Connect the test hose from the fitting on the

pump to the inlet side of the flowmeter and the

line from the motor to the outlet side of the flow-

meter. Turn the pressure regulator valve out on

the flowmeter to zero pressure.

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