Table 26: Hydraulic System Troubleshooting Problem
Possible Cause Restraint bar raised. Restraint bar switch malfunctioning. Solenoid malfunctioning.
Auxiliary hydraulics do not function
Corrective Action Lower restraint bar. Check electrical connections. Contact dealer. Check electrical connections. Contact dealer.
Spool in control valve not actuated or leaking. Contact dealer. Hydraulic oil leaking past seals. Auxiliary hydraulic connections Correct hydraulic connections. improperly connected. Auxiliary hydraulic control Contact dealer. module malfunction. With the engine off, but the ignition on, move Auxiliary hydraulics the auxiliary hydraulics control rocker switch on connections difficult Auxiliary hydraulics circuit the right T-bar, joystick or hand control back under pressure. to connect/ and forth to relieve pressure in the auxiliary disconnect hydraulics circuit. Check electrical connections to solenoid; repair Tilt solenoid valve malfunction. as necessary. Contact dealer. Tilt spool in control valve not Contact dealer. actuated or leaking. Control valve in float position. Move control out of float position. Lift arm operates, but attachment tilt Tilt cylinder malfunction. does not Control valve relief valve Contact dealer. malfunction (Squealing noise during operation). Restraint bar not lowered. Lower restraint bar. Check switch electrical connections; repair as Seat or restraint bar switch malfunction. necessary. Lift arm support engaged. Release lift arm support. Restraint bar not lowered. Lower restraint bar. Seat or restraint bar switch Check switch electrical connections; repair as malfunction. necessary. Hydraulic oil leaking past Attachment tilt Contact dealer. operates, but lift arm cylinder piston seals. does not Check electrical connections to solenoid; repair Lift solenoid valve malfunction. as necessary. Contact dealer. Lift spool in control valve not Contact dealer. actuated or leaking.
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