8
Trouble shooting
8.10 Some liquid escaping through drain outlet to
collecting tank
Possible cause
Action
Counter pressure at outlet too high
•
Reduce the counter pressure with the
regulating valve (100 - 180 kPa is
recommended)
•
Reduce the flow by adjusting the screw
fitted in pump
Leaking O-rings in separator
Replace O-rings
Clogged disc stack
Clean the bowl and disc stack
The three screws fastening the bowl hood
or the paring disc knob (the upper part of
the separator) are not completely tightened,
causing leakage
Tighten the screws and/or the knob
8.11 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)
8.12 Oil leakage through drain outlet to collecting tank
when separator is not running
Possible cause
Action
Oil is siphoned from fluid tank due to siphon
effect
Disconnect both hoses connected to the oil
tank
8.13 Collecting tank overflowing but pump does not
stop
Possible cause
Action
Adjustment of the spring tension for the
tank support is incorrect
Adjust the setting. See description in
4.5
Collecting tank on page 17
.
Faulty limit switch
Remedy
41
Summary of Contents for Alfie
Page 6: ......
Page 10: ...2 Application ...
Page 18: ...4 Description of main parts ...
Page 20: ...5 Working principle of the separator ...
Page 30: ...6 Control Cabinet ...
Page 47: ...9 Maintenance Dismantling G04491c1 See comments on opposite page 47 ...
Page 53: ...9 Maintenance G0449671 53 ...
Page 54: ...9 Maintenance G0449681 54 ...
Page 60: ...11 Lifting instruction ...
Page 61: ...12 Diagrams 12 1 Electrical system Alfa Laval ref 9014733 Rev 7 61 ...