Instruction Manual

MS 880
English
35
At temperatures below +50 °F (10 °C):
Pre-heat carburetor
N Remove the carburetor box cover
N in the carburetor box cover, move
the slide from summer position (1)
to winter position (2)
Heated air is now drawn in from around
the cylinder and mixed with cold air – this
helps prevent carburetor icing.
NOTICE
Above +70 °F (20 °C), always return the
slide to the position for "summer
operation" again! Risk of engine
malfunction – overheating!
Air filter system
N Retrofit new air filter if necessary –
see "Air filter system"
At temperatures below 14 °F (-10 °C)
(intake air pre-heating)
Under extreme winter conditions
(temperatures below 14 °F (-10 °C),
powdered or drifting snow), it is
recommended to break out the insert in
the cover along the perforated outline
using a suitable tool.
This causes only warm air from the
vicinity of the cylinder to be taken in –
prevents icing of air filter and carburetor.
N if the chain saw is extremely cold
(frost formation) – after starting,
bring the engine up to operating
temperature at increased idle speed
(disengage chain brake!)
When used with pre-heating of intake
air, heavier fouling of the air filter may
occur – shorten cleaning intervals.
N if engine trouble occurs, first check
whether use of intake air pre-
heating is necessary
N at higher temperatures, close the
opening with stoppers (1) (special
accessory)
Winter Operation
1
171BA022 KN
2
171BA002 KN
1
171BA003 KN