Winter Operation - Stihl MS 171 Instruction Manual

The chain brake will operate only if the
hand guard has not been modified in any
way.
Check operation of the chain brake
Before starting work: Run engine at idle
speed, engage the chain brake (push
hand guard toward bar nose) and open
the throttle wide for no more than
3 seconds – the chain must not rotate.
The hand guard must be free from dirt
and move freely.
Chain brake maintenance
The chain brake is subject to normal
wear. It is necessary to have it serviced
and maintained regularly by trained
personnel. STIHL recommends that you
have servicing and repair work carried
out exclusively by an authorized STIHL
servicing dealer. Maintain the following
servicing intervals:
Full-time usage: every 3
months
Part-time usage: every 6
months
Occasional usage: every 12
months
MS 171, MS 171 C, MS 181, MS 181 C, MS 211, MS 211 C

Winter Operation

Winter slide (MS 211 only)
At temperatures below +10 °C:
Remove the shroud – see "Shroud"
N
1
2
Use the combination wrench to turn
N
the slide next to the spark plug by
45° counterclockwise
1 winter operation
2 summer operation
Fit the shroud – see "Shroud"
N
Heated air is now drawn in from around
the cylinder and circulates around the
carburetor – this helps prevent
carburetor icing.
NOTICE
At temperatures above + 20 °C, always
return the slide to the position for
summer operation!
Risk of engine malfunction –
overheating!
Attach cover plate
(Special accessory, not for ErgoStart
versions)
2
2
1
Fit cover plate (1) and fasten with
N
screws (2)
if the chain saw is extremely cold,
N
after starting, bring the engine up to
operating temperature
MS 211 only: When using the cover
plate, the winter slide can be set to
winter operation or summer operation.
At temperatures below +10°C, set the
slide to the position for winter operation.
English
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