Instruction Manual

MS 660
English
33
At temperatures below +14 °F (-10 °C)
Under extreme winter conditions
(temperatures below +14 °F (-10 °C),
powdered or drifting snow), it is
recommended to mount the cover plate
(special accessory) on the fan housing.
The partial covering of the slits in the fan
housing keeps out powdered or drifting
snow.
When the cover plate is mounted, the
slide must be in winter position in the
carburetor box cover.
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!)
N If engine trouble occurs, first check
whether use of the cover plate is
necessary
Switching on the handle heating system
(depending on equipment version)
N To switch on, set switch to F and to
switch off, return switch to the 0
position
Overheating during continuous use is
impossible. The heating system is
maintenance-free.
Positions of Master Control Lever
Stop 0 – engine off – the ignition is
switched off
Normal run position (F) – engine runs or
can fire.
Starting throttle (n) – 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.
Choke shutter closed (l) – this position
is used to start a cold engine.
137BA015 KN
Electric Handle Heating
137BA016 KN
Starting / Stopping the
Engine
STOP
0
001BA140 KN