Case WX145 - Hydraulic System Troubleshooting

SECTION 5
5-8
HYDRAULIC SYSTEM
PROBLEM POSSIBLE CAUSE CORRECTION
Working and slewing
movements not operational.
Pilot control lever not in working
position.
Check and position lever correctly.
Pilot control lever defective. Consult your Dealer.
Hydraulic oil level too low. Top up hydraulic oil in correct
quantity.
Pilot control pressure limiting valve
faulty.
Consult your Dealer.
Pilot control pump defective. Consult your Dealer.
Pumps drive coupling defective. Consult your Dealer.
Pressure relief valve defective. Consult your Dealer.
Working operation too slow. LOW IDLE too low. Check and adjust.
Fuel filter dirty or clogged. Clean or replace fuel filter.
Engine lacks power. Consult your Dealer.
Hydraulic oil temperature too high. Check.
Dirty oil cooler. Clean oil cooler.
Coolant temperature too high. Consult your Dealer.
Malfunction of pilot control valve. Consult your Dealer.
Power losses in working
hydraulics.
Pilot control pressure limiting valve
faulty.
Consult your Dealer.
Pilot control pump defective. Consult your Dealer.
Malfunction of primary and secondary
pressure limiting valves.
Consult your Dealer.
Independent working
movement after hydraulic
control lever activation.
Pilot valve defective. Consult your Dealer.
Malfunction of pilot control valve. Consult your Dealer.
Boom not operational. Pilot control pressure limiting valve
faulty.
Consult your Dealer.
Malfunction of primary and secondary
pressure limiting valves.
Consult your Dealer.
Right hydraulic control lever
defective.
Consult your Dealer.
Boom lifting and lowering not
operational.
Pilot control pressure limiting valve
faulty.
Consult your Dealer.
Malfunction of primary and secondary
pressure limiting valves.
Consult your Dealer.
Right hydraulic control lever
defective.
Consult your Dealer.