Hydraulic System - Case WX145 Operator's Manual

SECTION 5
PROBLEM
Working and slewing
movements not operational.
Working operation too slow.
Power losses in working
hydraulics.
Independent working
movement after hydraulic
control lever activation.
Boom not operational.
Boom lifting and lowering not
operational.
5-8

HYDRAULIC SYSTEM

POSSIBLE CAUSE
Pilot control lever not in working
position.
Pilot control lever defective.
Hydraulic oil level too low.
Pilot control pressure limiting valve
faulty.
Pilot control pump defective.
Pumps drive coupling defective.
Pressure relief valve defective.
LOW IDLE too low.
Fuel filter dirty or clogged.
Engine lacks power.
Hydraulic oil temperature too high.
Dirty oil cooler.
Coolant temperature too high.
Malfunction of pilot control valve.
Pilot control pressure limiting valve
faulty.
Pilot control pump defective.
Malfunction of primary and secondary
pressure limiting valves.
Pilot valve defective.
Malfunction of pilot control valve.
Pilot control pressure limiting valve
faulty.
Malfunction of primary and secondary
pressure limiting valves.
Right hydraulic control lever
defective.
Pilot control pressure limiting valve
faulty.
Malfunction of primary and secondary
pressure limiting valves.
Right hydraulic control lever
defective.
CORRECTION
Check and position lever correctly.
Consult your Dealer.
Top up hydraulic oil in correct
quantity.
Consult your Dealer.
Consult your Dealer.
Consult your Dealer.
Consult your Dealer.
Check and adjust.
Clean or replace fuel filter.
Consult your Dealer.
Check.
Clean oil cooler.
Consult your Dealer.
Consult your Dealer.
Consult your Dealer.
Consult your Dealer.
Consult your Dealer.
Consult your Dealer.
Consult your Dealer.
Consult your Dealer.
Consult your Dealer.
Consult your Dealer.
Consult your Dealer.
Consult your Dealer.
Consult your Dealer.
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