Hydraulic System Troubleshooting
Show/hide table
| Problem | Possible causes |
| Hydraulic system without function | Defective safety switch on the control lever base |
| Wrong setting of safety switch on the control lever base | |
| Defective solenoid valve on pilot oil supply unit | |
| Contaminated solenoid valve on pilot oil supply unit | |
| Hydraulic oil level too low | |
| Defective valve fuses | |
| Defective or interrupted plug and socket connection towards solenoid valve | |
| Hydraulic hammer does not operate correctly | Quick couplings not connected correctly |
| Hydraulic oil quantity too high or too low | |
| Hydraulic oil pressure too high or too low |
Caterpillar Information System:
H110ES, H115ES, H120ES, H130ES, H140ES, H160ES and H180ES Hydraulic Hammers Control Valve - Assemble
H110ES, H115ES, H120ES, H130ES, H140ES, H160ES and H180ES Hydraulic Hammers Control Valve - Disassemble
301.4C Mini Hydraulic Excavator Relief Valve - Test and Adjust - Pilot
2011/08/10 An Improved Support Plate Is Now Used On Certain SW60 Wheel Saws {6712}
H110ES, H115ES, H120ES, H130ES, H140ES, H160ES and H180ES Hydraulic Hammers Check Valve - Assemble
H110ES, H115ES, H120ES, H130ES, H140ES, H160ES and H180ES Hydraulic Hammers Check Valve - Disassemble
2011/12/05 A New Valve Assembly is Now Used on Certain Excavators and Mobile Hydraulic Power Units {5057}
H110ES, H115ES, H120ES, H130ES, H140ES, H160ES and H180ES Hydraulic Hammers Check Valve - Install
H110ES, H115ES, H120ES, H130ES, H140ES, H160ES and H180ES Hydraulic Hammers Check Valve - Remove
301.4C Mini Hydraulic Excavator Fuel Tank Water and Sediment - Drain
VRG-20/2, VRG-25/2 and VRG-30/2 Demolition and Sorting Grapples Host Machine Pressure and Flow - Test
301.5, 301.6, 301.7 CR, 301.8 and 302 CR Mini Hydraulic Excavators General Hazard Information
330D and 336D Excavators Machine System Specifications Fuel Lines
330D, 336D, 336D2, 340D and 340D2 Excavators Machine System Specifications Fuel Tank
C15 and C18 Engines for Caterpillar Built Machines Engine Trunnion
C13, C15, and C18 Tier 4 Final Engines Flywheel
349E Excavator Machine System Specifications Quick Coupler (Spindle)
349E Excavator Machine System Specifications Auxiliary Hydraulic Lines - Coupler Lines
349E Excavator Machine System Specifications Auxiliary Hydraulic Lines - Coupler Lines
C3.4B Engines for Caterpillar Built Machines Compression - Test
C13, C15, and C18 Tier 4 Final Engines Turbocharger
C13, C15, and C18 Tier 4 Final Engines Turbocharger
VRG-20/2, VRG-25/2 and VRG-30/2 Demolition and Sorting Grapples Hydraulic Rotator Cycle Time - Check
C13, C15, and C18 Tier 4 Final Engines Turbocharger