Stihl MS 271 Notice D'emploi page 29

20 Key to Symbols
Part-time use:
occasional use:
20 Key to Symbols
Guide bar Chain black:
length Type Kickback
angle,
without
chain
brake
activated
broken
line: Kick‐
back
angle,
with chain
brake
activated
21 Winter Operation
21.1 Pre-heat carburetor
► Remove the shroud – see "Shroud"
21.1.1 At temperatures below +10 °C
► Using the combination wrench or a screw‐
driver, pry the shutter out of the s (summer
operation) position
0458-574-8221-D
every six months
annually
CSA Z 62.1-15
CSA Z 62.3-11
Contact of Always
the guide use two
bar tip with hands
any object when
should be operating
avoided the chain
saw
► Place the shutter with the opening in the direc‐
tion of the chain saw (winter operation) –
arrow points toward symbol r – shutter must
audibly snap into place
In the winter operation position, the tip of the
arrow (1) is visible.
► Fit the shroud – see "Shroud"
Heated air is now drawn in from around the cylin‐
der and circulates around the carburetor – this
helps prevent carburetor icing.
21.1.2 At temperatures above +20 °C
► Ensure that the shutter is set back to position
s (summer operation) without fail, otherwise
the engine may malfunction due to overheat‐
ing
21.2 At temperatures below -10 °C
In case of erratic idling behavior or poor acceler‐
ation
► Turn the low speed screw (L) 1/4 turn counter‐
clockwise
Whenever the low speed screw (L) has been
adjusted, it is usually also necessary to adjust
the idle speed screw (LA), see "Setting the car‐
buretor".
► if the chain saw is extremely cold (frost forma‐
tion) – after starting, bring the engine up to
operating temperature at increased idle speed
(disengage chain brake!)
21.3 Air filter system
► Retrofit new air filter if necessary – see "Air fil‐
ter system"
22 Operating Instructions
22.1 During the break-in period
A factory new machine should not be run at high
revs (full throttle off load) for the first three tank
fillings. This avoids unnecessarily high loads dur‐
ing the break-in period. As all moving parts have
to bed in during the break-in period, the frictional
English
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