32 – English
MAINTENANCE

Cooling system

To obtain the lowest possible running temperature the saw is
equipped with a cooling system.
The cooling system
consists of:
1. Air intake on the starter
unit.
2. Air guide plate.
3. Fan blades on the
flywheel.
4. Cooling fins on the
cylinder.
5. Cylinder cowling
(supplies 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 saw overheating which causes damage to
piston and cylinder.

Heated handles (362XPG/372XPG)

Centrifugal cleaning ”Air Injection”

Centrifugal cleaning means
the following:
All air to the carburetor is
carried through the starter.
Dirt and dust is centrifuged
away by the cooling fan.
IMPORTANT! In order to
keep the function of the
centrifugal cleaning, a
continous maintenance and
care must be made.
• Clean the air intake to the
starter, the fan wings of the
flywheel, the space around
the flywheel, inlet pipe and
carburetor space.
1
2
5
4
3

Temperature -5°C or colder:

For running the saw in cold
weather or powder snow, a
special cover is available,
which is mounted on the
starter housing. This
reduces the air flow and
prevents large amounts of
snow from being sucked in.
NOTE! If the special winterising kit has been fitted or any
measures have been taken to increase the temperature these
changes must be reversed before the saw is used in normal
temperature conditions. Otherwise there is a risk that the saw
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.

Winter use

During winter time, powder snow and cold weather can cause
running problems, such as:
• Too low engine temperature.
• Icing on the air filter and carburetor.
Therefore some special measures are required:
• Partly reduce the air inlet of the starter and by doing that
increase the engine temperature.

Electrically heated carburettor

(362XPG/372XPG)

Canada

This chain saw is, if it has model code XPG, equipped with
electrically heated carburettor. The electrical heating prevents
icing in the carburettor. A thermostat regulates heating so that
the carburettor always has the correct temperature.

All other countries

This chain saw is, if it has model code XPG, equipped with
electrically regulated carburettor heating. The carburettor
heating system is regulated with a 3-way switch.

Temperature range

The carburettor heater is used in the following temperature
range: ±0º C or colder. During high humidity icing of the
carburettor can occur earlier than specified.
The carburettor heater only
heats the carburettor when
the 3-way switch is set to
position ”II”.
The switch is off in position ”0”
supplies current to the handle heater in position ”I”
supplies current to the carburettor in position ”II”
NOTE! The carburettor heater reaches maximum temperature
after about 3 minutes. It is therefore important that the saw is
not run for longer with the heater switched on. If the switch is
left on for longer the carburettor will overheat and lead to
running problems or starting problems.
On the models 362XPG and
372XPG both the front
handle and the rear handle
are equipped with electrical
heating coils. These are
supplied with electricity both
from a built-in generator in
the electrical system.
When the red marking on the
switch is visible, the heating
is on.