MAINTENANCE
OF
THE
DRY
AIR FILTER
To
carry
out
when
the
air
clogging indicator
on
the
tilteT
is
fixed on the
red
area
(orthe alarm light
is
on).
This
operation must be carried out at least ance a year; the frequency of this
operation
will 00,
in
any case, variable in function
of
the ambient in which the
engine
works.
2
ON
@OFF
EXTERNAL CARTRIDGE FILTER MAINTENANCE
1,
Stap
the engine;
2.
Remove the fi!ter
CQver;
3.
Unscrew the external cartridge and extract it taking care that no dust enters
the
pipe;
4.
Never
hit it with tools;
5.
Clean
itwith
dry
compressed airfrom the inside
to
the autside (pressure must
not
be
mare than 2
bar,
in
order to avoid damage to the cartridge);
6.
Check the cartridge conditlon before replacing it
by
illuminating the inside
with
a lamp :ifthe cartridge shows signs of tears ar holes, ltshould
be
replaced;
37
3
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