8 Trouble shooting
8.12 Some liquid escaping through drain outlet to
collecting tan k
Possible cause Action
Counter pressure at outlet too high
• Reduce the counter pressure with
the regulating valve (60 - 90 kPa is
recommended)
• Reduce the flow
Clogged disc stack Clean the bowl and disc stack
If operating in purifier mode:
Insufficient sealing between bottom disc
and bowl bottom in separator (O-rings may
be missing)
Dismantle and check the separator bowl. Be
sure that the separator will be assembled
correctly.
The three screws fastening the bowl hood
or the par ing disc knob (the upper part of
the separator) are not completely tightened,
causing leakage
Tighten the screws and /or the knob
8.13 Oil flow through drain outlet to collecting tank only
Possible cause Action
If operating in purifier mode:
broken liquid seal in separator bowl
• Stop the pump and add water through the
inlet at top of the separator.
Obstruction in cleaned oil feed line • Check that regulating valve is open
• Check that outlet end to tank is open (no
closed check valve in hose connection)
8.14 Oil leakage through drain outlet to collecting tank
when separator is not running
Possible cause Action
Oil is siphoned from oil tank due to siphon
effect
Disconnect both hoses connected to the oil
tank
Leaking check valve (at inlet and/or outlet
side) Replace
8.15 Collecting tank overflowing but pump does not
stop
Possible cause Action
Adjustment of the spr ing tension for the
tank support is incorrect
Adjust the setting. See description in 4.6
Collecting tank on page 18.
53
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