MS 261 C-M
English
35
The air filter system can be adapted to
suit different operating conditions by
installing different filters. Changing a
filter is accomplished quickly and simply.
N HD2 Filter Universal filter for almost
all operating conditions (from very
dusty to very cold)
N Synthetic fabric filter: For use in
severe conditions, e.g. extreme
wintry operating conditions - such
as powdery or drifting snow. Less
suitable for very dusty conditions.
STIHL filters have a long service life in
dry operating conditions.
N Always use STIHL filters in dry
state.
Dirty air filters reduce engine power,
increase fuel consumption and make
starting more difficult.
If There is a Noticeable Loss of Engine
Power
N Remove the shroud – see "Shroud".
Removing the Air Filter
N Clean away loose dirt from around
the filter.
NOTICE
To avoid damaging the filter, do not use
tools to remove or install the air filter.
N Rotate the air filter a 1/4 turn
counterclockwise and lift it away in
the direction of the rear handle.
N Always replace damaged filters.
Cleaning the Air Filter
N Knock out the filter.
N Spray outside of filter with STIHL
special cleaner or soapy water.
N Rinse outside of filter under warm
running water.
NOTICE
High temperatures and oil can damage
the air filter. Filter efficiency can
deteriorate as a result.
– Allow air filter to dry without using
any external source of heat.
– Do not impregnate the filter with oil.
N Allow air filter to dry.
N Install the air filter.
Installing the Air Filter
N Place the air filter in position.
N Push the air filter towards the filter
housing and turn it clockwise at the
same time until it engages – the
"STIHL" name must be horizontal.
N Install the shroud – see "Shroud".
Air Filter System
Cleaning the Air Filter
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