Operating The Saw - Stihl MS 400 C-M Instruction Manual

11 Operating the Saw

► If the chain can be pulled along the bar by
hand: Do not use your chainsaw and contact
your STIHL servicing dealer for assistance.
The chain brake is defective.
10.5 Checking the Controls
Throttle trigger lockout and throttle trigger
► Shut off the engine and engage the chain
brake.
► Attempt to pull the trigger without depressing
the lockout lever.
► If the trigger can be pulled: Do not use your
chainsaw and contact your STIHL servicing
dealer for assistance.
There is a malfunction in the throttle trigger
lockout.
► Press down the throttle trigger lockout and
hold it there.
► Pull the throttle trigger and release it again.
► If the throttle trigger is stiff or does not spring
back to its idle position: Do not use your chain‐
saw and contact your STIHL servicing dealer
for assistance.
The throttle trigger is defective.
Stopping the Engine
► Start the engine.
► Move the Master Control lever to position
The engine stops and the Master Control lever
springs back to position .
► If the engine does not stop:
► Move the Master Control lever to posi‐
tion .
The engine stops.
► Do not use your chainsaw and contact your
STIHL servicing dealer for assistance.
Your saw has a malfunction.
10.6 Checking Chain Lubrication
► Start the engine and disengage the chain
brake.
► Hold the guide bar over a light surface.
► Open the throttle.
Chain oil is thrown off the chain and is visible
on the light surface. Chain lubrication is oper‐
ating properly.
► If no chain oil can be seen:
► Shut off the engine.
► Fill up with chain oil.
► Check chain lubrication again.
► If chain oil is still not visible on the light sur‐
face: Do not use your chainsaw and contact
your STIHL servicing dealer for assistance.
Chain lubrication is defective.
0458-788-0121-B
11 Operating the Saw
11.1 Winter Operation
The carburetor may ice up if the engine is oper‐
ated at temperatures below +10°C. The shutter
must be set to the winter mode so that the carbu‐
retor is additionally heated by warm air from
around the engine.
NOTICE
■ The engine may overheat if is operated in the
winter mode at temperatures above +10°C.
► Change setting to summer mode.
► Shut off the engine and engage the chain
brake.
1
► Rotate the shroud fasteners (1) a quarter turn
counterclockwise.
.
► Remove the shroud (2).
► Pull out the shutter (3).
► Hold the shutter (3) so that the lug (4) points to
the winter symbol.
► Push the shutter (3) into the guide as far as
stop.
You will feel it engage.
► Place the shroud (2) in position.
► Rotate the shroud fasteners (1) clockwise until
you hear a click.
The shroud fasteners (1) are locked.
11.2 Summer Operation
The shutter must be set to summer mode when
working at temperatures above +10°C.
► Shut off the engine and engage the chain
brake.
1
3
English
3
4
3
17