Case WX145 - Slewing System Troubleshooting

TROUBLESHOOTING
5-11
SLEWING
PROBLEM POSSIBLE CAUSE CORRECTION
Slewing 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.
Slewing pump supply system
defective.
Consult your Dealer.
Upper structure parking brake locked. Check and release the brake.
Upper structure locking pin jammed. Remove the locking pin.
Upper structure slewing fuse faulty. Replace fuse.
Solenoid defective. Replace the solenoid.
Hydraulic control lever not
operational.
Consult your Dealer.
Switch defective. Replace switch.
Slewing left or right not
operational.
Pump adjustment slewing wrong. Check and adjust correctly.
Slewing power insufficient. Pilot control pressure limiting valve
faulty.
Consult your Dealer.
Slewing pump supply system
defective.
Consult your Dealer.
Slewing high pressure system
defective.
Consult your Dealer.
Slewing motor leaking excessive. Consult your Dealer.
Display setting wrong. Perform correct display setting.
Spontaneous slewing. Slewing pump adjustment incorrect. Check and adjust correctly.
Air in the system. Bleed the air.
Upper structure brake not
operational.
Pilot control pressure limiting valve
faulty.
Consult your Dealer.
Brake discs worn out. Replace the brake plates.