Husqvarna 143R-II 用户手册

English

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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.

Note: The machine should only be run for short periods at 
its highest speed.

CAUTION!

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.

1

Remove the muffler, insert a screwdriver into the vent, 
and wipe away any carbon builup. Wipe away any 
carbon buildup on the muffler exhaust vent and 
cylinder exhaust vent at the same time.

2

Tighten all screws, bolts and fittings.

3

Check to see if any oil or grease has worked its way in 
between the clutch lining and drum, and if it has, wipe 
it away using oil-free, lead-free gasoline.

CAUTION!  Never use a machine with a defective muffler.

To keep the working temperature as low as possible the 
machine is equipped with a cooling system.

The cooling system consists of:

1

Cooling fins on the cylinder.

2

Air intake / cooling vent (back)

Clean the cooling system with a brush once a week, more 
often in demanding conditions. A dirty or blocked cooling 
system results in the machine overheating which causes 
damage to the piston and cylinder.