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MAINTENANCE
English – 37
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
carburetor passes through the starter. Dirt and dust is
pushed out by the cooling fan.
IMPORTANT! In order to maintain operation of the
centrifugal cleaning system it m
ust be regularly
maintained. Clean the air intake to the starter, the fins on
the flywheel, the space around the flywheel, inlet pipe and
carburetor 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 carburetor.
Special measures are therefore often required:
• Partly mask the air inlet on the starter to increase the
w
or
king temperature of the engine.
• Preheat the intake air to the carburetor by using the
heat from the cylinder.
Temperature 0°°
°°
C (32°°
°°
F) 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
carburetor space preventing icing of the air filter, etc.
For temperatures below -5
°C (23°F) 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 flo
w of cooling air and prevent large
amounts of snow from being suc
ked into the carburetor
space.
CAUTION! When the winter plug is fitted the winter flap
must be open!
Heated handles
(357 XPG, 359 G)
On models with the designation XPG/G, the front as well
as the rear handle are equipped with electric heating
coils. These are fed with electrical current from an
integrated generator in the chain saw.
When the switch is pushed downwards, the heat is
s
witched on.
When the switch is pushed upwards, the
heat is switched off.
Electrical carburetor heating
(357 XPG, 359 G)
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.
IMPORTANT! If the temperature rises above -5°C
(23
°F) or 0°C (32°F) respectively the machine MUST be
restored to its normal set-up. Otherwise there is a risk of
overheating, which can cause severe engine damage.