Muffler - MTD 450E Operator's Manual

MAINTENANCE
Chain catcher
Check that the chain catcher is not damaged and is firmly
attached to the body of the chain saw.
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Right hand guard
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Check that the right hand guard is not damaged and that
there are no visible defects, such as cracks.
Vibration damping system
Regularly check the vibration damping units for cracks or
deformation.
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Make sure the vibration damping units are securely
attached to the engine unit and handle unit.
Stop switch
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Start the engine and make sure the engine stops when
you move the step switch to the stop setting.
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CAUTION! The start/stop switch automatically returns to
run position. In order to prevent unintentional starting, the
spark plug cap must be removed from the spark plug
when assembling, checking and/or performing
maintenance.
Muffler
Never use a machine that has a faulty muffler.
Regularly check that the muffler is securely attached to
the machine.
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Some mufflers are equipped with a special spark arrestor
screen. If your machine has this type of muffler, you
should clean the screen at least once a week.This is best
done with a wire brush. A blocked screen will cause the
engine to overheat and may lead to serious damage.
Note! The screen must be replaced if it is damaged. If the
screen is blocked the machine will overheat and this will
cause damage to the cylinder and piston. Never use a
machine with a muffler that is in poor condition. Never
118 13 81-95 Rev.3 2008-12-15 English - 33