Husqvarna 132R, Руководство оператора

Страница: 22 / 36

22 –
English
MAINTENANCE
Carburettor
Your Husqvarna product has been designed and
manufactured to speci
fi cations that reduce harmful
emissions. After the engine has used 8-10 tanks of fuel the
engine will be run-in. To ensure that it continues to run at peak
performance and to minimise harmful exhaust emissions
after the running-in period, ask your dealer/service workshop
(who will have a rev counter at their disposal) to adjust your
carburettor.
Function
• The carburettor governs the engine’s speed via the
throttle control. Air and fuel are mixed in the carburettor.
The air/fuel mixture is adjustable. Correct adjustment is
essential to get the best performance from the machine.
• Adjusting the carburettor means that the engine is
adapted to local operating conditions, e.g. climate,
altitude, petrol and the type of 2-stroke oil.
Adjusting the idle speed (T)
Check that the air fi lter is clean. When the idle speed is
correct, the cutting attachment should not rotate. If
adjustment is required, close (turn clockwise) the idle
adjustment screw T, with the engine running, until the cutting
attachment starts to rotate. Open (turn anticlockwise) the
screw until the cutting attachment stops. The idle speed is
correctly set when the engine runs smoothly in all positions,
and there is a clear margin to the speed at which the cutting
attachment starts to rotate.
Note: The machine should only be run for short periods at its
highest speed.
Muf fl er
CAUTION! Some muf fl ers are fi tted with a catalytic converter.
See chapter on Technical data to see whether your machine
is
fi tted with a catalytic converter.
The muf fl er 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
fi re
if directed against dry and combustible material.
Some muf fl ers are equipped with a special spark arrestor
mesh. If your machine has this type of muf fl er, you should
clean the mesh at least once a week. This is best done with a
wire brush. On muf
fl ers without a catalytic converter the mesh
should be cleaned weekly, or replaced if necessary. On
muf
fl ers fi tted 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 muf
fl er. 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 muf fl er.
Cooling system
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 fl ywheel.
3 Cooling fi ns 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.
!
WARNING! The complete clutch cover and
shaft must be
fi tted before the machine is
started, otherwise the clutch can come loose
and cause personal injury.
!
WARNING! If the idle speed cannot be
adjusted so that the cutting attachment
stops, contact your dealer/service
workshop. Do not use the machine until it
has been correctly adjusted or repaired.
- -
+ +
!
WARNING! Muf fl ers fi tted with catalytic
converters get very hot during use and
remain so for some time after stopping. This
also applies at idle speed. Contact can result
in burns to the skin. Remember the risk of
fi re!
1
2
4
3