Fault description
Cause
Remedy
Fluctuations in pres-
sure/volumetric flow
Insufficient suction conditions, e.g. air in the
suction line, inadequate diameter of the suc-
tion line, excessive viscosity of the pressure
fluid, extreme suction height, too low suction
pressure, foreign bodies in the suction line.
Remove foreign bodies from
inside the suction line.
Pressure fluid too hot
Excessive input temperature on axial piston
unit.
Check the system, e.g. malfunc-
tion of the cooler, pressure fluid
level in tank too low.
Malfunction of the pressure control valves (e.g.
high pressure limiting valve, pressure override
valve, pressure controller).
Consult the service department.
Malfunction of the flushing valve (not for nom-
inal size 18).
Consult the service department.
Wear of the axial piston unit.
Replace the axial piston unit.
Troubleshooting – Trouble shooting, hydraulics
BW 900-50
218
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