McCulloch Petrol Hedge Cutter Blade length 600 mm 00096-66.934.01 Fiche De Données

16 – English

Before any adjustments are made, make sure that the air 
filter is clean and the air filter cover is fitted. Make sure the 
start throttle position is disengaged.

Adjust the idle speed using the idle adjustment screw T, if 
it is necessary to readjust. First turn the T screw clockwise 
until the cutting attachment starts to move. Then turn the 
screw anticlockwise until the cutting attachment stops. 
The idle speed is correctly adjusted when the engine runs 
smoothly in every position. The idle speed should also be 
well below the speed at which the cutting attachment 
starts to move.

Rec. idle speed: See the Technical data section.

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, the mesh 
must be cleaned. This is best done with a wire brush.

On mufflers without a catalytic converter, the mesh should 
be cleaned or replaced if necessary once a week. If the 
mesh is damaged it must be replaced. If the mesh is 
frequently blocked, this can be a sign that the carburettor 

is incorrectly adjusted or that too much oil has been mixed 
with the petrol.

On mufflers fitted with a catalytic converter, the mesh 
must be checked, and if necessary cleaned, monthly. If 
the mesh is damaged it must 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

Cooling fins on the cylinder.

2

Cylinder cover (directs cold air over the cylinder).

3

Air intake through the crankcase (inside the tank).

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.

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.