Husqvarna 350 Chainsaw User Manual


 
32 – English
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
mesh. If your machine has this type of muffler, you should
clean the mesh at least once a week. This is best done with a
wire brush. A blocked mesh will cause the engine to overheat
and may lead to serious damage.
Note! The mesh must be replaced if it is damaged. If the mesh
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 mesh 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 cause fire
if directed against dry and combustible material.
A muffler equipped with a catalytic converter significantly
reduces the amount of hydrocarbons (HC), nitrogen oxides
(NO) and aldehydes in the exhaust fumes. Carbon monoxide
(CO), which is poisonous and odorless, is not however
reduced! Consequently, never work in an enclosed or badly
ventilated area. Good air circulation should always prevail
when working in snowy hollows, ravines or in confined
conditions.
Starter
Changing a broken or worn starter cord
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 bolt in the centre of the pulley and remove the
drive disc, drive disc spring and the pulley. Insert and
secure a new starter cord in the starter pulley. Wind
approx. 3 turns of the starter cord on the starter pulley. Fit
the starter pulley so that the end of the recoil spring hooks
into the starter pulley. Now assemble the drive disc spring,
drive disc and the bolt in the centre of the pulley. Carry the
starter cord through the hole in the starter housing and the
starter handle. Tie a good knot on the starter cord.
!
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, starter cord or the drive disc
spring. Wear protective glasses and
protective gloves.