5-12 SHB 28Z3 EN – Edition 2.0 * 28z3s510.fm
Hydraulic system
Troubleshooting on the hydraulic pump
Problem Possible causes
Diesel engine overload
Pressure setting is higher than the specification
Incorrect setting of pump
Damaged parts in the pump
Insufficient flow or pressure
Speed of the diesel engine too low
Damaged parts in the pump
Wrong coupling was fitted
Abnormal noises or vibrations
Air in the hydraulic oil
Water in the hydraulic oil
Intake line restricted or obstructed
Defective piston shoe
Wrong coupling was fitted
Oil leakage
Damaged O-ring or seal
Plug or screw connection loose
Leaking rotary shaft lip seal
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