Husqvarna 233RJ 用户手册

English

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 195

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.

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.

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. On mufflers without a catalytic 
converter the mesh should be cleaned weekly, or 
replaced if necessary. On mufflers fitted with a catalytic 
converter the mesh should be checked, and if necessary 
cleaned, monthly. If the mesh is damaged it should be 
replaced. If the mesh is frequently blocked, this can be a 
sign that the performance of the catalytic converter is 
impaired. Contact your dealer to inspect the muffler. A 
blocked mesh will cause the machine to overheat and 
result in damage to the cylinder and piston.

CAUTION!  Never use a machine with a defective muffler.

H1151432-10,233RJ.fm  Page 195  Wednesday, February 4, 2009  2:56 PM