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9
Maintenance
Control of sludge content
Dismantle the separator and
measure the thickness (A) of
the sludge collected on the bowl
wall. The thickness should never
exceed 10 mm.
If the interval between bowl
cleaning is too long, this can
result in a sludge cake that is
hard and difficult to remove. Too
long interval can also result in that
sludge enters the disc stack and
hinders separation. Oil overflow
and vibration can also occur.
When cleaning very contaminated
oil, bowl cleaning every 20 - 30
minutes could be necessary.
G0907411
A.
Max. thickness = 10 mm
(corresponds to 0.6 litre)
1.
Sludge
2.
Bowl wall
See
9.5.2 Cleaning of bowl on page 46
for
information on procedure.
9.2
Once per month
9.2.1
Pump
Check that the vanes of the impeller are not broken. If a vane is brooken replace with a new
impeller. Always check that rubber parts from the impeller does not block the hoses or separator
inlet (including the inlet pipe). If blocked the new impeller will break very quickly.
The impeller is a wearing part and the performance of the pump will change with the wear. Abrasive
liquids will shorten the service life of the impeller and the pump (cover and pump housing).
Frequent dry running or change of rotation will shorten the service life. When operated at high
temperatures (more than 55 °C) the service life is shortened. The expected service life differs
depending on installation parameters and is normally 200 - 1200 operating hours but can be longer.
9.3
Once per year
9.3.1
Separator
Replace the O-rings with new ones included in the O-ring service kit. Their positions are shown in
the
Spare Parts Catalogue
.
See
9.5.3 Replacement of O-rings on page 50
for procedure.
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Содержание Alfie
Страница 6: ......
Страница 10: ...2 Application ...
Страница 18: ...4 Description of main parts ...
Страница 20: ...5 Working principle of the separator ...
Страница 30: ...6 Control Cabinet ...
Страница 47: ...9 Maintenance Dismantling G04491c1 See comments on opposite page 47 ...
Страница 53: ...9 Maintenance G0449671 53 ...
Страница 54: ...9 Maintenance G0449681 54 ...
Страница 60: ...11 Lifting instruction ...
Страница 61: ...12 Diagrams 12 1 Electrical system Alfa Laval ref 9014733 Rev 7 61 ...