Cleaning Standard Filter; Cleaning Hd Filter - Stihl MS 441 Instruction Manual

Cleaning Standard Filter

If there is a noticeable loss of engine
power:
: Knock the filter out on the palm of
your hand or blow it out with
compressed air from the inside
outward.
In case of stubborn dirt or sticky filter
fabric:
: Wash the filter in a fresh, non-
flammable solution (e.g. warm
soapy water) and then dry.
: Do not impregnate the standard
filter with oil.
Always replace a damaged filter.
: Refit the filter.
MS 441

Cleaning HD Filter

2
If there is a noticeable loss of engine
power:
: Clean the felt prefilter (1).
After cleaning the prefilter several times:
: Separate the filter components.
: Knock the HD filter (2) out on the
palm of your hand and blow it out
with compressed air from the inside
outward.
1
In case of stubborn dirt or sticky filter
fabric:
: Wash filter with STIHL universal
cleaner or in a fresh, non-flammable
solution (e.g. warm soapy water).
: Rinse the filter, from the inside
outward, under a low-pressure
water jet – do not use a high-
pressure washer.
: Dry all parts of the filter. Do not
expose to high temperatures.
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