HARNESS AS-CHASSIS 3599014 - Caterpillar

Pump Destroke Pressure
Destroking pressure is the control pressure from the pump control to the pump destroke servo.Note: Each implement piston pump must be isolated and checked separately. Disconnect the power shift signal pressure from the pumps which are not being checked.
Install a 40000 kPa (5800 psi) pressure gauge and test hose onto pressure tap (6) in order to measure the discharge pressure of the implement piston pump.
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Regulator control valve for the implement piston pump (8) Relief valve for bucket curl function
Reduce the pressure setting of the relief valve (8) by turning the adjuster counterclockwise by 5 turns.Note: Do not turn the adjuster more than 5 turns. Removal of adjuster out of the valve may result in loss of oil.Note: Each implement piston pump must be isolated and checked separately. Full pump flow through the line relief valve may damage the valve.
Isolate one implement piston pump by disconnecting the power shift signal from all the implement piston pumps which are not being checked. Refer to "Pump Isolation".
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Implement piston pump (9) "M1" port
Install 6V-3965 Fitting As into six "M1" ports (9) for the implement pumps. Install a 6V-7830 Tetragauge and a test hose onto the fitting assembly at the "M1" port of the pump that is being tested.
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Connection for power shift signal
Install a 4000 kPa (580 psi) pressure gauge and test hose into the power shift system on the pump in order to measure the pressure of the power shift signal.
Start the engine.
Warm the oil to a minimum temperature of 50 °C (122 °F). Refer to the Testing and Adjusting, "General Information" for the proper procedure for warming the hydraulic oil.
Set the throttle switch to position 1.
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The electronic service tool that is connected to the diagnostic connector for ET that is located in the cab
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The electronic service tool that is connected to the diagnostic connector for ET that is located in the pump room
Set the power shift pressure to a constant 1380 kPa (200 psi) by using the Electronic Technician Software and the M300 Technician software. Connect the Electronic Service Tool with a 7X-1700 Communication Adapter to the diagnostic connector for ET with a 7X-1425 cable and a 7X-1570 cable. Either the diagnostic connector for ET that is located in the cab or located in the pump room may be used. Use the override parameters in order to set the power shift pressure.
Slowly actuate the bucket curl function to the open position. Hold the open position for the bucket curl function in a stalled condition. Read the pressure for the power shift signal, for the "M1" port pressure, and for