Operating Instructions; Air Filter - Stihl FS 260 R Instruction Manual

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Operating Instructions

During break-in period
A factory-new machine should not be
run at high revs (full throttle off load) for
the first three tank fillings. This avoids
unnecessary high loads during the
break-in period. As all moving parts
have to bed in during the break-in
period, the frictional resistances in the
engine are greater during this period.
The engine develops its maximum
power after about 5 to 15 tank fillings.
During Operation
After a long period of full throttle
operation, allow the engine to run for a
short while at idle speed so that engine
heat can be dissipated by the flow of
cooling air. This protects engine-
mounted components (ignition,
carburetor) from thermal overload.
After Finishing Work
Storing for a short period: Wait for the
engine to cool down. Empty the fuel tank
and keep the machine in a dry place,
well away from sources of ignition, until
you need it again. For longer out-of-
service periods – see "Storing the
Machine".
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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
FS 240, FS 240 C, FS 240 R, FS 240 RC, FS 260 R, FS 260 RC
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.