Starter Housing - Husqvarna 439 Manual De Instrucciones

• Push the muffler cover as shown in the picture.
• Loosen the screws and nuts. Remove and check that
the muffler is ok.
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
use a muffler if the spark arrestor screen is missing
or defective.
The muffler is designed to reduce the noise level and to
direct the exhaust gases away from the operator. The
exhaust gases are hot and can contain sparks, which may
34 – English
MAINTENANCE
cause fire if directed against dry and combustible
material.

Starter housing

!
Changing a broken or worn starter cord
• Loosen the screws on the front handle and detach it
from its mounting.
• Loosen the screws that hold the starter against the
crankcase and remove the starter.
• Pull out the cord approx. 30 cm (12 inches) and hook
it into the notch in the rim of the pulley. Release the
recoil spring by letting the pulley rotate slowly
backwards.
• Undo the screw in the centre of the pulley and remove
the pulley. Insert and fasten a new starter cord to the
pulley. Wind approx. 3 turns of the starter cord onto
the pulley. Connect the pulley to the recoil spring so
WARNING! When the recoil spring is
wound up in the starter housing it is
under tension and can, if handled
carelessly, pop out and cause personal
injury.
Care must be exercised when replacing
the return spring or the starter cord.
Wear protective glasses and protective
gloves.