6.5.3. Cleaning filter elements
•
By compressed air
(wear goggles)
- For the purpose, the air gun should
be fitted with a nozzle extension
which is bent 90
°
at the discharge
end and which is long enough to
reach down inside to the bottom of
the element.
- Moving the air gun up and down,
blow out the element from the inside
(maximum 5 bar) until no more dust
comes out of the filter pleats.
•
By washing
-
Before washing, the element should be
precleaned by means of compressed
air, as described above.
- Then allow the element to soak in
lukewarm washing solvent for 10
minutes, and then move it to and for
in the solvent for about 5 minutes.
- Rinse thoroughly in clean water,
shake out and allow drying at room
temperature. The cartridge must be
dry before it is reinstalled.
- Never use steam sprayers, petrol
(gasoline), alkalis or hot liquids etc. to
clean the filter elements.
•
Knocking out dirt by hand
- In emergencies, when no compressed air or cleaning agent is available, it is possible to
clean the filter cartridge provisionally by hitting the end disk of the cartridge with the ball of
one’s thumb.
- Under no circumstances should the element be hit with a hard object or knocked against a
hard surface to loosen dirt deposits.
- 170 -
MAINTENANCE OF MAJOR COMPONENTS
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