18 – English
MAINTENANCE
Spark plug
The condition of the spark plug
is affected by:
• An incorrect carburettor
setting.
• An incorrect fuel mixture
(too much oil).
• A dirty air filter.
These factors cause deposits
on the spark plug electrode
that may result in malfunction
or starting difficulties.
• If the machine is low on
power, difficult to start or
runs poorly while idling
always check the spark
plug first. If the spark plug
is dirty, clean it and at the
same time check that the
electrode gap is 0,5 mm
(.020"). The spark plug
should be changed after
about one month of
operation or earlier if
necessary.
NOTE! Always use the recommended type of spark plug. (see
chapter
”Technical data”
)! An incorrect spark plug can damage
the cylinder/piston.
Muffler
The muffler is designed in
order 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
Never use a power cutter
with a defective muffler.
Cooling system
To obtain the lowest possible running temperature the power
cutter is equipped with a cooling system.
The cooling system consists
of:
1. An air intake on the
starter unit.
2. Air flow guide.
3. Cooling fins on the
flywheel
4. Cooling fins on the
cylinder
5. Cylinder cover (leads cold
air onto the cylinder).
Clean the cooling system
using a brush at least once
a week, in difficult
conditions more often. A
dirty or blocked cooling
system results in the power
cutter overheating, which
causes damage to the piston
and cylinder.
0,5 mm
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