Performing maintenance
VMU 1 ATEX II 2G IIC T4
en(us)
Page 44 / 60
BEWA VMU _4_ATEX-II2GIICT4_4066057 en-us 2015-10-12.doc
2015-10-12
Changing the prefilter / safety filter element
DANGER
Spark formation during dismantling /
maintenance
Risk of explosion / Danger of fatal injury
►
Carry out maintenance work outside or when
there is no explosive air environment present.
►
Use only spark-free tools for the installation
in explosion-hazard environments.
Change the filter element when the visual differential pressure gauge is red.
The bayonet mount on the filter element makes changing the filter element
easier. Rotate the filter element 90° clockwise or counterclockwise to
separate it from the element receptacle.
1.
Switch off the system, make sure that no
operating fluid can flow out of the lines into
the OLF-5, and make sure that the unit
cannot be switched on again during
maintenance.
Depressurize the filter bowl.
To accomplish this, carefully open the
drain screw (Air Bleed) on the filter
housing cover.
Be careful when the operating medium
flows out.
2.
Put a suitable container in place to catch
the medium in the filter bowl.
The volume is
≈
3 liters.
Empty the filter housing through the drain
screw (Drain) on the connection part.
Note that without the proper drainage
equipment, the draining fluid can flow
Содержание VarnishMitigation Unit
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