Stihl MS 310 Product Instruction Manual - Page 35

Information, Before You Start

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English / USA Information Before You Start STOP 1 0 139BA018 KN 1 001BA140 KN 139BA019 KN 139BA005 TR : Use a screwdriver to remove the shutter (3) from the shroud. : Turn the shutter 180° and refit it on the left of the spark plug (see illustration). : Refit the spark plug boot. : Install the prefilter (1) so that the symbol r (winter operation) points up. : Refit carburetor box cover and secure it with the twist lock. Heated air is now drawn in from around the cylinder and mixed with cold air - this helps prevent carburetor icing. At temperatures above +20 °C (70°F) : Return shutter and prefilter to position s (summer operation). This is essential to avoid engine running problems, i.e. overheating! The four positions of the Master Control lever 0 = Engine off - ignition is switched off. # = Normal run position - engine runs or can fire. To move the Master Control lever from # to n or l, press down the throttle trigger interlock and squeeze throttle trigger at the same time. n=Warm start - this position is used to start a warm engine. The Master Control lever moves to the normal run position as soon as the throttle trigger is squeezed. l=Cold start - this position is used to start a cold engine. 34 MS 290, MS 310, MS 390

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34
English / USA
MS 290, MS 310, MS 390
:
Use a screwdriver to remove the
shutter
(3)
from the shroud.
:
Turn the shutter 180° and refit it on
the left of the spark plug
(see illustration).
:
Refit the spark plug boot.
:
Install the prefilter
(1)
so that the
symbol
r
(winter operation) points
up.
:
Refit carburetor box cover and
secure it with the twist lock.
Heated air is now drawn in from around
the cylinder and mixed with cold air –
this helps prevent carburetor icing.
At temperatures above +20 °C
(70°F)
:
Return shutter and prefilter to
position
s
(summer operation).
This is essential to avoid engine
running problems, i.e. overheating!
The four positions of the
Master Control lever
0
= Engine off
–
ignition is switched off.
#
=
Normal run position
–
engine runs or can fire.
To move the Master Control lever from
#
to
n
or
l
, press down the throttle
trigger interlock and squeeze throttle
trigger at the same time.
n
=Warm start
– this position is used to
start a warm engine. The Master
Control lever moves to the normal
run position as soon as the throttle
trigger is squeezed.
l
=Cold start
– this position is used to
start a cold engine.
139BA005 TR
139BA018 KN
1
139BA019 KN
1
Information
Before You Start
STOP
0
001BA140 KN