At temperatures below +14 °F (-10 °C)

137BA015 KN

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.

NIf the chain saw is extremely cold (frost formation) – after starting, bring the engine up to operating temperature at increased idle speed (disengage chain brake!)

NIf engine trouble occurs, first check whether use of the cover plate is necessary

Electric Handle Heating

Switching on the handle heating system (depending on equipment version)

137BA016 KN

NTo 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.

English

Starting / Stopping the Engine

Positions of Master Control Lever

STOP

0

001BA140 KN

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.

MS 660

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STIHL MS 660 MAGNUM manual Electric Handle Heating, Starting / Stopping the Engine, Positions of Master Control Lever