Muffler - Husqvarna 455e rancher ii Operator's Manual

• Check that the throttle trigger and throttle lockout
move freely and that the return springs work properly.
• Start the chain saw and apply full throttle. Release the
throttle control and check that the chain stops and
remains stationary.
Chain catcher
• Check that the chain catcher is not damaged and is
firmly attached to the body of the chain saw.
Right hand guard
• 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.
• Make sure the vibration damping units are securely
attached to the engine unit and handle unit.
34 – English
MAINTENANCE
Stop switch
• Start the engine and make sure the engine stops
when you move the stop switch to the stop setting.
NOTE! 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.
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