MAINTENANCE
English – 37
5 Cylinder cover (directs 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 machine overheating which causes
damage to the piston and cylinder.
Note! The cooling system on a chain saw with catalytic
converter must be cleaned daily. This is particularly
important on chain saws with catalytic converters,
because the higher exhaust temperature requires efficient
cooling of the engine and the catalytic converter unit.
”Turbo Air Cleaning” centrifugal
cleaning
Centrifugal cleaning means the following: All air to the
carburettor passes through the starter. Dirt and dust is
centrifuged out by the cooling fan.
IMPORTANT! In order to maintain operation of the
centrifugal cleaning system it must be regularly
maintained. Clean the air intake to the starter, the fins on
the flywheel, the space around the flywheel, inlet pipe and
carburettor 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 carburettor.
Special measures are therefore often required:
• Partly mask the air inlet on the starter to increase the
working temperature of the engine.
• Preheat the intake air to the carburettor by using the
heat from the cylinder.
Temperature 0°°
°°
C or colder:
The cylinder cover is designed so it can be adjusted for
running in cold weather. Remove the plastic in the marked
circle, so that preheated air from the cylinder can pass
into the carburettor space preventing icing of the air filter,
etc.
For temperatures below -5°C and/or in snow conditions
there is also:
• a special cover (A) for the starter housing
This reduces the flow of cooling air and prevents large
amounts of snow from being sucked into the carburettor
space.
1
2
5
4
3
IMPORTANT! If the temperature rises above -5 °C or 0
°C respectively the machine MUST be restored to its
normal set-up. The winter plug (B) is fitted in the empty
circle on the cylinder cover. Otherwise there is a risk of
overheating, resulting in severe damage to the engine.
B
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