MAINTENANCE
Muf� er with catalytic converterCooling system
A muf� er Ţ tted with a catalytic converter reduces the extent of To maintain as low an
the following substances in the exhaust fumes:operating temperature as
possible the engine is
? Hydrocarbons (HC). Some hydrocarbons in gasoline and the equipped with a cooling
exhaust are carcinogenic.system.
? Nitric oxides (NO). Irritating for the breathing air-ways.
? Aldehydes. The most common formaldehyde, is carcinogenic The cooling system consists of:
and causes hypersensitiveness.
1. An air intake on the starter
NOTE! The level of carbon monoxide is not reduced. This is an unit.
odourless and extremely poisonous substance. Therefore avoid
exposure without good air circulation.2. Cooling Ţ ns on the
� ywheel.
3. Cooling Ţ ns on the cylinder
The muf� er is designed to
dampen the noise level and to 4. Cylinder cover (leads cold
direct the exhaust fumes away air onto the cylinder).
from the user. The exhaust
fumes are hot and can contain Clean the cooling system using
sparks, which can result in Ţ re a brush at least once a week,
if the exhaust fumes are di-in difŢ cult conditions more
rected towards a dry or in� am-often.
mable material. Some muf� ers A dirty or blocked cooling
are Ţ tted with a special spark system leads to the engine
arrest screen. If your machine overheating resulting in
is Ţ tted with this type of muf-damage to the cylinder and
� er then the screen should be piston.
cleaned at least once a week.
This is done using a wire
brush. If the screen is dam-
aged in anyway it should be re-
placed. If the screen is blocked
this will result in the engine
over heating and damage to the
cylinder and piston,
NOTE!
Spark plug
Never use a machine with a
defective muf� er.
The condition of the spark plug
is affected by:
? An incorrect carburettor
setting.0,5 mm
? An incorrect fuel mixture (too
much or faulty oil).
? A dirty air Ţ lter.
These factors cause deposits
on the spark plug electrode
that may result in malfunction
or starting difŢ culties.
WARNING!
Muf� ers Ţ tted with catalytic converters
!become extremely hot during use and after
stopping. This also applies at idling speeds.
Contact can result in burns to the skin. Be
observant to the risk of Ţ re!If the machine is low on power, difŢ cult to start or runs
poorly while idling always check the spark plug Ţ rst before
taking any other action.
WARNING!If the spark plug is dirty, clean it and at the same time check that
The coating on/in the catalytic element can the electrode gap is 0.5 mm. The spark plug should be changed
!be hazardous to health if consumed. Wear
after about one month of operation or earlier if necessary.
protective gloves when carrying out service NOTE! Always use the recommended type of spark plug. An
work on the catalytic converter.incorrect spark plug can damage the cylinder/piston.
18 - English |
ACEC
