MAINTENANCE
Cooling systemWinter use
During winter time, powder snow and cold weather can cause
running problems, such as:
Y Too low engine temperature.
Y Icing on the air filter and carburettor.
To obtain the lowest possible running temperature the saw is
equipped with a cooling system.Therefore some special measures are required:
Y Partly reduce the air inlet of the starter and by doing that
The cooling system5increase the engine temperature.
consists of:Y Preheat the intake air to the carburettor by removing the
special plug between the cylinder and the carburettor space.
1. Air intake on the starter4
unit.
3Temperature 0!C or colder:
2. Air guide plate.
3. Fan blades on the
flywheel.
4. Cooling fins on theTwist the cover flap so that
cylinder.preheated air from the
2
cylinder can enter the
5. Cylinder cowlingcarburettor chamber to
1
(supplies cold air overprevent icing of the filter. Fit
the cylinder).the rubber seal to the fuel pipe
by the main air intake.
Clean the cooling system with a brush once a week, more often
in demanding conditions. A dirty or blocked cooling system
results in the saw overheating which causes damage to
piston and cylinder.
Centrifugal cleaning �Air Injection�
Centrifugal cleaning meansTemperature -5!C or colder:
the following:
All air to the carburettor is
carried through the starter.
Dirt and dust is centrifuged
away by the cooling fan.If the saw is to be used in cold
weather or powder snow
IMPORTANT! In order toconditions a special cover flap
keep the function of thecan be fitted to the right side
centrifugal cleaning, aof the cylinder. This restricts
continous maintenance andthe flow of cold air and
care must be made.reduces the amount of snow
that is sucked in.
Y Clean the air intake to the
NOTE! If the special winterising kit has been fitted or any
starter, the fan wings of the
measures have been taken to increase the temperature these
flywheel, the space around
changes must be reversed before the saw is used in normal
the flywheel, inlet pipe and
temperature conditions. Otherwise there is a risk that the saw
carburettor space.
will overheat, resulting in severe damage to the engine.
IMPORTANT! Any maintenance other than that described in
this manual must be carried out by your servicing dealer.
32 � English |