Winter Operation - Stihl MS 341 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 341, MS 361, MS 361 C

Winter Operation

Preheating the carburetor
At temperatures below 10°C
1
N Use the combination wrench or a
screwdriver to ease the shutter (1)
out of the summer position s.
N Fit the shutter in the winter
position (r) – symbol r facing up.
Heated air is now drawn in from around
the cylinder to warm the carburetor – this
helps prevent carburetor icing.
N
At temperatures above 20°C:
Return the shutter to the summer
position ( s ) to avoid engine
running problems and overheating.
At temperatures below -10°C
It is advisable to fit the "cover plate" kit
(special accessory) if you use your saw
in extremely cold conditions
(temperatures below -10°C, in powder
or drifting snow).
If idling behavior is erratic or
acceleration is poor:
N
Turn the low speed screw (L) 1/4 of
a turn counterclockwise.
It is usually necessary to change the
setting of the idle speed screw (LA) after
every correction to the low speed
screw (L) – see "Adjusting the
Carburetor".
N If your saw is very cold (frost or ice
on machine), start the engine and
keep it at a high idle speed (with
chain brake disengaged) until it
reaches normal operating
temperature.
Mounting kit
The cover plate mounting kit helps
prevent snow being sucked into the
machine.
When the cover plate is fitted, the
shutter must be in the winter position.
In the event of engine running problems,
first check that the conditons for use of
the cover plate mounting kit still apply.
English
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