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The air filter has 2 elements: one main element in carton (2)
and a second one with a special tissue, a central cylinder in
plastic material, and one radial seal in polyurethan foam (3).
•
Then, put back the filter elements inside the plastic air filter
after maintenance or replacement. Be careful to place then
correctly inside, in order for the seals to work perfectly.
•
Turn back the plastic cover.
11.2.2 process of MAIntenAnce
Maintenance of the filter is necessary when the filtering element is dirty. For that purpose, it is advisable
to observe important rules:
•
For the cleaning, place a tube on an air pistol, the extremity
of which is cubit of roughly 90°. The tube must be enough
long to reach the bottom of the filtering element. Clean with
precaution the filter element with some dry compressed air (5
bars max.), from the inside towards the outside or from the
filtered side towards the not filtered side, until it appears no
more dust. The top of the tube does not have to be in contact
with the element (see below).
•
Then, examine carefully the filtering element and verify the absence of damage.
•
Never take out the dust by typing the filtering element, the risk is to damage it and then also the risk
to damage the engine.
•
The second element must never be cleaned, but must be replaced.
•
After the maintenance of the filtering element, clean carefully inside the plastic filter and the seal with
a wet cloth. During this operation, make sure no dust penetrates into and on the side of the air filter.
The cleaning has to be made every 250 hours and the 2 filtering elements must be changed every 500
hours.
Clean and change more often the 2 elements if the engine is used in dusty environment.
Check that the hose connecting the engine to the air filter is fixed well and that it is not damaged: If yes,
it could happen the passage of dusts directly in the engine.
(2)
(3)
