Husqvarna 1153191-26 用户手册

18 – English

Loosen the muffler’s 2 screws and remove the muffler.

Pull out the spark arrestor mesh and clean using a wire 
brush. Replace the spark arrestor mesh if it is defective.

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 underside of the blower.

2

Nozzle for cooling the cylinder

3

Cooling fins on the cylinder.

4

Cooling air conductor (directs cold air over the 
cylinder).

5

Emergency cooling nozzle

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. Check that the nozzles 
are not blocked.

The spark plug condition is influenced by:

•

Incorrect carburettor adjustment.

•

An incorrect fuel mixture (too much or incorrect type 
of oil).

•

A dirty air filter.

These factors cause deposits on the spark plug 
electrodes, which may result in operating problems and 
starting difficulties.

If the machine is low on power, difficult to start or runs 
poorly at idle speed: always check the spark plug first 
before taking any further action. If the spark plug is dirty, 
clean it and check that the electrode gap is 0.5 mm. The 
spark plug should be replaced after about a month in 
operation or earlier if necessary.

CAUTION! Always use the recommended spark plug 
type! Use of the wrong spark plug can damage the piston/
cylinder.

The air filter must be regularly cleaned to remove dust 
and dirt in order to avoid:

•

Carburettor malfunctions

•

Starting problems

•

Loss of engine power

•

Unnecessary wear to engine parts.

•

Excessive fuel consumption.