Air Filter System; Cleaning The Air Filter - Stihl MS 171 Instruction Manual

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Air Filter System

The air filter system can be adapted to
suit different operating conditions by
installing a choice of filters. Changing
the filter is quick and simple.
Fleece mat (MS 171)
Top illustration.
One-piece fleece filter with sealing lip
(MS 181, MS 211)
Bottom illustration, special accessory on
MS 171.
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One-piece fabric filter (special
accessory)
For damp and extremely cold operating
conditions.
MS 171, MS 171 C, MS 181, MS 181 C, MS 211, MS 211 C

Cleaning the Air Filter

If there is a noticeable loss of engine
power
Remove the shroud – see "Shroud".
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Always replace damaged filters.
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Clean away loose dirt from around
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the filter.
Push the two locking tabs upwards,
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tilt the air filter towards the rear
handle and remove.
NOTICE
To avoid damaging the filter, do not use
tools for removing and installing the air
filter.
Blow out the filter with compressed
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air from the clean air side.
If the filter fabric is caked with dirt or no
compressed air is available:
Wash the filter in a clean, non-
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flammable solution (e.g. warm
soapy water) and then dry.
Reinstall the air filter.
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Install the shroud – see "Shroud".
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