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8 | Rectifying malfunctions
HYDAC FILTER SYSTEMS GMBH
60 / 84
MoWa OF5 S_N 3160336d en-us lq
Malfunction
Cause(s)
Rectification
The dynamic
pressure up-
stream of the fil-
ter is high.
(Clogging indica-
tor is activated)
The fluid is
heavily contami-
nated.
The contamina-
tion retention ca-
pacity of the filter
element has
been reached.
Replace the filter
element.
The viscosity of
the fluid is too
high.
Check the vis-
cosity of the
fluid.
Heat the fluid to
achieve the per-
missible viscos-
ity.
Leakage on the
filter housing.
Wrong or miss-
ing seal ring at
the filter housing
cover.
Check the seal
ring at the filter
housing cover.
Replace it if nec-
essary.
The star screws
on the filter
housing cover
are not tight-
ened.
Tighten the star
screws by hand.
Tab. 7:
Error / cause / rectification