Cooling System; Air Injection" Centrifugal Cleaning; Winter Use - Husqvarna 545 Manuel D'utilisation

Cooling system

To keep the working temperature as low as possible the
machine is equipped with a cooling system.
The cooling system consists of:
1 Air intake on the starter.
2 Air guide plate.
3 Fins on the flywheel.
4 Cooling fins on the cylinder.
5 Cylinder cover (directs cold air over the cylinder).
2
1
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.
"Air Injection" centrifugal
cleaning
Centrifugal cleaning means the following: All air to the
carburetor 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
carburetor compartment.
MAINTENANCE
5
4
3

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 carburetor.
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 carburetor by using the
heat from the cylinder.
Temperature 0°C (32°F) or colder
The intermediate wall is designed so it can be adjusted for
running in cold weather, so that preheated air from the
cylinder can pass into the carburettor space preventing
icing of the air filter, etc. Lift off the air filter to obtain better
access. Use a screwdriver to carefully knock away the
plug in the partition.
For temperatures below -5°C (23°F) and/or in snow
conditions a special cover is available, which is mounted
on the starter housing.
Part number: 522 98 66-01.
These reduce the flow of cooling air and prevent large
amounts of snow from being sucked into the carburetor
space.
IMPORTANT! If the temperature rises above 23°F (-
5°C) or 32°F (0°C) respectively, the starter housing
cover MUST be removed and the accompanying plug,
art. no. 503 40 59-01 fitted in the hole in the partition
wall. Otherwise there is a risk of overheating, resulting
in severe damage to the engine.
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English 37