Jonsered FC2145W 사용자 설명서

28 – 

English

The correct start throttle speed is set by means of an adjuster 
on the rear of the handle next to the cable. Use this screw (5 
mm Allen screw) to increase or decrease the start throttle 
speed.

1

Run the machine at idle.

2

Press the start throttle lock as described under the 
heading Starting and stopping.

3

If the start throttle speed is too low (below 4000 rpm), turn 
the adjuster screw A clockwise until the cutting 
attachment starts to rotate. Then turn A clockwise a 
further 1/2 turn.

4

If the start throttle speed is too high, turn the adjuster 
screw A anticlockwise until the cutting attachment stops. 
Then turn adjuster screw A clockwise a further 1/2 turn.

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.

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

The cooling system consists of:

1

Air intake on the starter.

2

Fins on the flywheel.

3

Cooling fins on the cylinder.

4

Cylinder cover (directs cold air over the cylinder).

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.