Winter Operation - Stihl MS 441 C-M Manual De Instrucciones

felling cut. The chain brake will operate
only if it has been properly maintained
and the hand guard has not been
modified in any way.
Check operation of chain brake
Before starting work: Run engine at idle
speed, engage the chain brake (push
hand guard toward bar nose).
Accelerate up to full throttle 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, such as your STIHL servicing
dealer, at the following intervals:
Full-time usage:
Part-time usage:
Occasional usage:
MS 441 C-M

Winter Operation

Pre-heat carburetor at temperatures
under +50 °F (10 °C)
loosen screw (1) using the
N
combination wrench or a
screwdriver - open at least one turn
every 3
months
every 6
months
every 12
months
turn slide (2) from the s position
N
(summer operation) to the r
position (winter operation) – the
slide must engage audibly
Tighten screw
N
Now the carburetor is pre-heated by the
preheater plate – this helps prevent
carburetor icing.
1
At temperatures above +70 °F
N
(+20 °C): always return the slide to
the summer position –
NOTICE
otherwise risk of engine malfunction due
to overheating!
If engine trouble occurs, first return the
slide from winter to summer position.
Air filter system
Retrofit new air filter if necessary –
N
see "Air filter system"
At temperatures below +14 °F (-10 °C)
Under extreme winter conditions
(temperatures below -10 °C, powdered
or drifting snow), it is recommended to
use the "cover plate mounting kit"
(special accessory). The mounting kit
keeps out powdered or drifting snow.
if the chain saw is extremely cold
N
(frost formation) – after starting,
bring the engine up to operating
temperature at medium speed
(disengage chain brake!)
English
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