Westfalia OSD 6-91-067 Instruction Manual page 67

Westfalia Separator
Mineraloil Systems GmbH
Fault
The bowl does not open or
not properly (cont.)
The bowl does not empty
completely. Solids remain in
the bowl.
Gasket 2 in the bowl top
wears too quickly.
The bowl opens during se-
paration.
2058-9001-101 / 0506
Possible causes
Dry dirt or rubber particles have de-
posited:
between the guides of the chamber
bottom and annular piston or
- between annular piston and bowl
bottom or
- between sliding piston and bowl
bottom.
The closing chamber is dirty.
Gasket 2 of polyamide has a loose fit
in the groove of the bowl top.
Product seeps into the gasket groove
and presses the gasket out of the
groove while the sliding piston moves
downwards, so that there is no gap
for solids ejection.
The operating water capacity is too
low.
The product contains abrasive solids.
The operating water in the closing
chamber has diminished during a
long separating time (evaporation
etc.).
Time pulse for the operating water in-
jection is too long.
Remedies
Clean bowl parts.
Renew damaged gaskets.
Grease guides (see 4.2.4 - lubrica-
tion schedule).
Dismantle bowl.
Clean closing chamber.
Replace polyamide
4.3.8).
Check line pressure and increase if
necessary.
Operating water data:
– Pressure 2 - 3 bar (with open
valve)
– Volume flow min. 1 800 l/h (gauge
the capacity by litres)
≅ 1.0 l in 2 sec
Remove the abrasive solids by in-
stalling a strainer.
Set the operating water pulse and
time (see manual of the control sys-
tem).
Set the operating water pulse (see
manual of the control system).
67
gasket (see