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32 – English
MAINTENANCE
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.
• Preheat the intake air to the carburetor by removing the
special plug between the cylinder and the carburetor space.
Temperature 0
o
C (32
o
F) or colder
Twist the cover flap so that
preheated air from the
cylinder can enter the
carburetor chamber to prevent
icing of the filter.
Temperature -5
o
C (23
o
F) or colder
When using the saw in cold
weather or powder snow
conditions you should cover
the starter unit with adhesive
tape. This reduces the flow of
cold air 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.
IMPORTANT! Any maintenance other than that described in
this manual must be carried out by your servicing dealer.
Needle bearing maintenance
The clutch drum is equipped
with one of the following chain
sprockets:
• Spur sprocket (A) (the chain
sprocket is welded on the
drum)
• Rim sprocket (B)
(exchangeable)
Both versions have built-in
needle bearing at the drive
shaft, whitch has to be
greased regularly (once a
week).
NOTE! Use only high
quality bearing grease.
A
B
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.
1
2
5
4
3