English
Air filter
General Information
The filter has a very long service life.
Do not remove the filter cover or replace
the air filter as long as there is no
noticeable loss of power.
Dirty air filters reduce engine power,
increase fuel consumption and make
starting more difficult.
Replacing the Air Filter
Only if there is a noticeable loss of
engine power
Set the choke lever to g.
N
1
Loosen the screws (1).
N
32
3
2
Remove the filter cover (2).
N
Clean away loose dirt from around
N
the filter (3) and inside the filter
cover.
The air filter (3) is a pleated paper filter
element.
Remove and check the filter
N
element (3) – replace if paper or
frame is dirty or damaged.
Unpack the new filter.
N
NOTICE
Do not bend or twist the filter before
installation as it might otherwise be
damaged – do not use damaged filters.
Fit the filter in the filter housing.
N
Fit the filter cover.
N
Use only high quality air filters to ensure
the engine is protected from abrasive
dust.
STIHL recommends you use only
original STIHL air filters. The high quality
standard of these parts guarantees
trouble-free operation, a long engine life
and very long filter service lives.
Filter Element for Winter Operation
Maintenance and care of the special
filter element for winter operation are
described in the chapter on "Winter
Operation".
FS 240, FS 240 R