Husqvarna 324RX 用户手册

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页码 40
MAINTENANCE
English
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 27
Carburetor
Function
The carburetor governs the engine’s speed via the 
throttle control. Air and fuel are mixed in the carburetor.
Setting the carburettor involves adapting the engine to 
suit local conditions, e.g. climate, altitude and the petrol.
Basic setting
The basic carburetor settings are adjusted during testing at 
the factory.
CAUTION!  For optimum adjustment of the carburettor, 
contact a qualified dealer/service workshop that has a 
revolution counter at their disposal. 
Adjusting the idle speed (T)
Check that the air filter is clean. When the idle speed is 
correct, the cutting attachment should not rotate. If 
adjustment is required, close (turn clockwise) the idle 
adjustment screw T, with the engine running, until the cutting 
attachment starts to rotate. Open (turn anticlockwise) the 
screw until the cutting attachment stops. The idle speed is 
correctly set when the engine runs smoothly in all positions, 
and there is a clear margin to the speed at which the cutting 
attachment starts to rotate.
Muffler
CAUTION!  Some mufflers are fitted with a catalytic 
converter. See chapter on Technical data to see whether 
your machine is fitted with a catalytic converter.
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.
The muffler on your machine is equipped with a spark 
arrestor screen, this should be cleaned regularly. A blocked 
screen will cause the engine to overheat and may lead to 
serious damage.
CAUTION!  Never use a machine with a defective muffler.
!
WARNING! The complete clutch cover and 
shaft must be fitted before the machine is 
started, otherwise the clutch can come 
loose and cause personal injury.
!
WARNING! If the idle speed cannot be 
adjusted so that the cutting attachment 
stops, contact your dealer/service 
workshop. Do not use the machine until it 
has been correctly adjusted or repaired.
!
WARNING! Mufflers fitted with catalytic 
converters get very hot during use and 
remain so for some time after stopping. 
This also applies at idle speed. Contact can 
result in burns to the skin. Remember the 
risk of fire!