MOUNTING GP-RISER 3613461 - Caterpillar

Table 1
Related Components: Possible Causes: Recommended Action:
Valve/Lines Low pilot pressure Refer to Testing and Adjusting, KENR9615, "Relief Valve (Pilot) - Test and Adjust"
Stick Drift Reduction Valve (DRV) is malfunctioning Refer to Troubleshooting, "Drift Reduction Valve - Functional Test"
Stick Lowering Check Valve (SLCV) is malfunctioning Refer to Troubleshooting, "Relief Valve (Line) - Functional Test"
Stick HE (Head End) relief valve failure
SLCV pilot pressure is low or zero Refer to Testing and Adjusting, KENR9615, "Relief Valve (Pilot) - Test and Adjust"
Warm-up valve failure (boom or stick) Refer to Troubleshooting, "Hydraulic System Warm-Up - Functional Test"
Pilot relief valve is malfunctioning Refer to Testing and Adjusting, KENR9615, "Relief Valve (Pilot) - Test and Adjust"
Main relief valve is malfunctioning Refer to Troubleshooting, "Relief Valve (Main) - Functional Test"
Stick line relief valve is malfunctioning Refer to Troubleshooting, "Relief Valve (Line) - Functional Test"
Electronics/Harness/Solenoids Stick Pump to Cylinder Head End (PCHE) Proportional Hydraulic Modulating Valve (PHMV) solenoid has failed Refer to appropriate diagnostic code troubleshooting procedure
Stick Cylinder to Tank Rod End (CTRE) PHMV solenoid has failed
Drive pump bypass solenoid has failed
The energize circuit of the stick PCHE PHMV is shorted to ground Refer to appropriate diagnostic code troubleshooting procedure
The energize circuit of the stick CTRE PHMV is shorted to ground
Stick DRV solenoid is malfunctioning
The energize circuit of the stick Rod End (RE) DRV solenoid is shorted to ground
SLCV solenoid is malfunctioning
The ECM is malfunctioning. A failure of the ECM is unlikely Prior to replacing the ECM, always contact the Technical Communicator at your dealership for possible consultation with Caterpillar. This consultation may effect repair time. Follow the procedure in Troubleshooting, "ECM - Replace" to replace the ECM
Software Slope value is 0mm/A or near 0mm/A Refer to Troubleshooting, "IMV Calibration - Functional Test"
Cracking calibration value is 0mA or near 0mA
SLCV installation status setting is not correct Change SLCV installation status to "Installed" through Monitor or Cat ET
Pump/Motor/Tank Front or Rear pump fails to stroke up Refer to Testing and Adjusting, KENR9615, "Pump Flow Measurement"