Shroud; Air Filter System; Cleaning The Air Filter - Stihl MS 251 Manual De Instrucciones

Shroud

Remove shroud
Move the Master Control Lever to
N
the stop position 0
Push the front hand guard forwards
N
– the saw chain is blocked
2
1
Loosen screws (1)
N
Remove the shroud (2)
N
Refitting the shroud
Refit the shroud and tighten the
N
screws
MS 251, MS 251 C

Air Filter System

The air filter system can be adapted to
suit different operating conditions by
installing different filters. Changing the
filter is quick and simple.
Fleece filter
1
1
Fleece filter for normal operating
N
conditions and dry work areas.
HD2 filter
HD2 filter (black filter frame, pleated
N
filter material) for extreme wintry
conditions (e.g. powder or drifting
snow) or very dusty work areas.

Cleaning the Air Filter

If there is a noticeable loss of engine
power.
Remove the shroud – see "Shroud".
N
Removing the air filter
Clean away loose dirt from around
N
the filter.
NOTICE
To avoid damaging the filter, do not use
tools for removing and installing the air
filter.
1.
2.
Rotate the air filter a 1/4 turn
N
counterclockwise and lift it away in
the direction of the rear handle.
Always replace a damaged filter.
N
Cleaning the air filter (fleece filter)
Knock out the filter or blow it clear
N
with compressed air from the inside
outwards.
If knocking it out or blowing it clear is not
sufficient to remove stubborn dirt, or if
the filter fabric is sticky, perform the
following steps:
English
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