MS 441
English
37
If there is a noticeable loss of engine
power
N Clean felt prefilter (1)
After repeated cleaning of the felt
prefilter
N Separate the parts of the filter from
one another
N Tap HD filter (2) clean and blow
through compressed air from the
inside outwards.
In case of stubborn dirt or stuck filter
fabric
N Wash the filter in STIHL all-purpose
cleaner or a clean, non-flammable
cleaning liquid (e. g., warm soapy
water) – rinse the filter from inside to
out under a water jet – do not use
high-pressure cleaners
N dry all filter parts – do not expose
to extreme heat
N Fit the felt prefilter (1) over the HD
filter (2), note installation position
N Reinstall HD filter (with felt prefilter)
and carburetor box cover
N Check carburetor adjustment,
correct if necessary
The felt prefilter protects the HD filter
and increases its service life. Thus it
should be replaced at shorter intervals
than the HD filter.
Always replace a damaged filter.
Clean HD filter
2
1
176BA005 KN
176BA006 KN
176BA007 KN
2
1
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