TROUBLESHOOTING HYDRAULIC SYSTEM 11-10 Problem Cause Solution Hydraulic Oil Overheats Relief valve Contaminated oil Travel motors Improperly adjusted hydraulic components See your authorized dealer. Drain oil and refill. See your authorized dealer. See your authorized dealer. Oil Foams Air leak in line from reservoir to pump Kinks or dents in oil lines Wrong oil Water in oil High or low oil level Repair leak or see your authorized dealer. Check lines. Use correct oil. Change oil. Correct level. Low or No Oil Pressure Wrong oil Improperly adjusted hydraulic components No oil in system Worn cylinder packings Relief valve Use correct oil. See your authorized dealer. Fill with correct oil.
See your authorized dealer. See your authorized dealer. No Hydraulic Functions (Noise from pumps) Hydraulic pump Decreased set-pressure of main relief valve in control valve Lack of hydraulic oil Damaged suction line or hose Clogged suction filter Sucked air from oil suction port See your authorized dealer. Add oil. See your authorized dealer. Clean. Hydraulic Cylinders Operate but Cannot Lift Load Hydraulic pump worn Main relief valve pressure low Hydraulic oil level low Suction screen plugged Pump suction line leaking Pressure switches Solenoid valve See your authorized dealer. See your authorized dealer. Add oil. Clean strainer and system. Inspect suction line. See your authorized dealer.
See your authorized dealer.