Filter
Top Products
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.
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 carburettor.
Therefore some special measures are required:
• Partly reduce the air inlet of the starter and by doing that
increase the engine temperature.
• Preheat the intake air to the carburettor by removing the
special plug between the cylinder and the carburettor space.
The cylinder cover is made so it can be changed for running in
cold weather. There is a possibility to make a hole in which,
during the warmer part of the year, should be sealed using a
plug.
Temperature 0
o
C (32
o
F) or colder
Model 254: Turn the cover
lid so that the preheated air
from the cylinder can pass
into the carburettor area
preventing for instance icing
on the air filter.
Model 257, 262: Move the
cover from position A to
position B so that preheated
air can pass from the
cylinder to the carburettor
space and prevent forma-
tion of ice in the air filter.
NOTE! When the cover is
placed in the air nozzle it is
important that the air nozzle
seals hermetically to the
cylinder cover.
Temperature -5
o
C (23
o
F) 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.
IMPORTANT! If a special
winter kit is assembled or
measures are taken to
increase the engine
temperature, a readjustment
to normal setting has to be
done when the saw is used
under normal conditions.
Otherwise, there is a risk of
overheating, which can
cause severe engine
damage.
Model 257, 262: When the cover is mounted in position A, it
must be turned with the cut towards the air filter. To make a
proper centrifugal cleaning possible, the air nozzle must seal
hermetically to the crankcase and cylinder cover.
IMPORTANT! Any maintenance other than that described in
this manual must be carried out by your servicing dealer.
On the model XPG both the
front handle and the rear
handle are equipped with
electrical heating coils. These
are supplied with electricity
from a built-in generator in the
electrical system. The switch
for the heating coils is placed
to the right of the rear handle.
When the switch is pushed to
the right, the heat is switched
on. When it is pushed to the
left, the heat is switched off.
Heated handles
1
2
5
4
3
Centrifugal cleaning ”Air Injection”
Centrifugal cleaning means
the following:
All air to the carburettor 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
carburettor space.
257, 262
254