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55
MCSW40-2
In
more
detail
. . .
Problem
Possible cause
Solution
Engine does
not reach
the maximum
speed.
Air filter is soiled?
Clean the air filter.
Spark plug is soiled (tip is
rusted)?
Clean spark plug.
Incorrect fuel or incorrect
mixture?
Stop the engine and empty
tank, then fill up with the correct
mixture of fuel to oil (40:1).
Carburetor setting not correct?
Have a qualified person adjust
the carburetor.
Excess
smoke from
the engine.
Incorrect fuel or incorrect
mixture?
Stop the engine and empty
tank, then fill up with the correct
mixture of fuel to oil (40:1).
Chain does
not start.
Chain brake engaged?
Disengage chain brake.
Chain starts
up before
throttle trigger
is pressed.
Chain brake is not engaged?
Engage chain brake.
Idling speed too high?
Press throttle trigger again
slightly after starting.
Insufficient
chain
lubrication/
grease.
The saw chain oil tank empty?
Fill up saw chain oil.
Oiling port clogged?
Clean oiling port.
Incorrect saw chain lubrication
setting?
Increase the saw chain
lubrication.
Troubleshooting