7 | Rectifying malfunctions
HYDAC FILTER SYSTEMS GMBH
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BeWa MFU-30E 4073898a en-us web
7 Rectifying malfunctions
In order to get quick and immediate assistance in the case of
errors, you will find the most often occurring errors with their
cause and remedy with suitable specialist personnel in this
chapter.
The following errors may occur while operating the filter unit:
Malfunction
Cause(s)
Rectification
No oil flow.
The vane pump
is pumping the
fluid in the wrong
direction.
Make sure that
the vane pump
is functioning in
the direction
shown by the ar-
rows on the
housing. If nec-
essary, switch
two phases in
the motor control
box.
There is no oil in
the filter unit.
Fill the filter unit
through the suc-
tion hose.
The protective
screen is
clogged.
Check and/or
clean the protec-
tive screen as
needed.
The suction
hose is kinked or
faulty or a shut-
off device is
closed.
Check the suc-
tion hose for
freedom of pas-
sage. Replace it
if necessary.
There is air in
the suction line
and the vane
pump.
Fill the vane
pump through
the suction hose/
quick coupling.
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