At very low outside temperatures

Nif necessary, configure for winter operation, see "Winter Operation"

Switching off the engine

NMove the Master Control lever to the stop position 0

If the engine does not start

The starter grip may not have been pulled briskly and forcefully enough; the engine is probably flooded.

NMove the Master Control lever to the operating position F

NHold and start the chain saw

or:

NRemove the spark plug – see "Spark plug"

NDry spark plug

NMove the Master Control lever to the stop position 0

NCrank the engine several times with the starter – to clear the combustion chamber

NReplace the spark plug – see "Spark plug"

NMove the Master Control lever to the operating position F

NHold and start the chain saw

MS 441 C-M

Operating Instructions

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 during the break-in period. As all moving parts have to bed in during the break-in period, the frictional resistances in the shortblock are greater during this period. The engine develops its maximum power after about 5 to 15 tank fillings.

During work

Open the throttle only when the chain brake is off. Running the

engine at high revs with the chain brake engaged (chain locked) will quickly damage the engine and chain drive (clutch, chain brake).

Check chain tension frequently

A new saw chain must be retensioned more frequently than one that has been in use already for an extended period.

Chain cold

Tension is correct when the chain fits snugly against the underside of the bar but can still be pulled along the bar by hand. Retension if necessary – see "Tensioning the Saw Chain".

Chain at operating temperature

The chain stretches and begins to sag. The drive links must not come out of the bar groove on the underside of the bar –

English

the chain may otherwise jump off the bar. Retension the chain – see "Tensioning the Saw Chain".

The chain contracts as it cools down. If it is not slackened off, it

can damage the crankshaft and bearings.

After a long period of full-throttle operation

After a long period of full-throttle operation, allow engine to run for a while at idle speed so that the heat in the engine can be dissipated by flow of cooling air. This protects engine- mounted components (ignition, carburetor) from thermal overload.

After finishing work

NSlacken off the chain if you have retensioned it at operating temperature during work.

Always slacken off the chain again after finishing work. The chain

contracts as it cools down. If it is not slackened off, it can damage the crankshaft and bearings.

Short-term storage

Wait for engine to cool down. Keep the machine with a full tank of fuel in a dry place, well away from sources of ignition, until you need it again.

Long-term storage

See "Storing the machine"

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