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Note! The cooling system on a chain saw with catalytic
converter must be cleaned daily. This is particularly
important on chain saws with catalytic converters,
because the higher exhaust temperature requires efficient
cooling of the engine and the catalytic converter unit.
"Air Injection" centrifugal
cleaning
Centrifugal cleaning means the following: All air to the
carburettor passes through the starter. Dirt and dust is
centrifuged out by the cooling fan.
IMPORTANT! In order to maintain operation of the
centrifugal cleaning system it must be regularly
maintained. Clean the air intake to the starter, the fins on
the flywheel, the space around the flywheel, inlet pipe and
carburettor compartment.
Winter use
Running problems can occur when using the machine in
the cold and snowy conditions caused by:
•
Too low engine temperature.
•
Icing of the air filter and carburettor.
Special measures are therefore often required:
•
Partly mask the air inlet on the starter to increase the
working temperature of the engine.
•
Preheat the intake air to the carburettor by using the
heat from the cylinder.
Temperature 0° ° ° ° C or colder
The cylinder cover is designed so it can be adjusted for
running in cold weather. Twist the winter flap so that
preheated air from the cylinder can pass into the
carburettor space preventing icing of the air filter, etc.
38 – English
MAINTENANCE
For temperatures below -5°C and/or in snow conditions
there is also:
•
a special cover (A) for the starter housing
•
a winter plug (B) for the air nozzle that is fitted as
shown.
These reduce the flow of cooling air and prevent large
amounts of snow from being sucked into the carburettor
space.
CAUTION! When the winter plug is fitted the winter flap
must be open!
IMPORTANT! If the temperature rises above -5°C or 0°C
respectively the machine MUST be restored to its
normal set-up. Otherwise there is a risk of overheating,
which can cause severe engine damage.
Heated handles
(346XPG, 353G)
On models with the designation XPG/G, the front as well
as the rear handle are equipped with electric heating
coils. These are supplied with electricity from a built-in
generator on the chain saw.
When the switch is pushed downwards, the heat is
switched on. When the switch is pushed upwards, the
heat is switched off.
Electrical carburettor heating
(346XPG, 353G)
On models with the designation CARBURETOR
HEATING there is an electrically heated carburetor.
Electrically powered heating prevents ice formation in the
carburetor. A thermostat regulates the heating so that the
carburetor always has the right working temperature.
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