Husqvarna 345 用户手册

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页码 44
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 
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 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.
345e:
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.