Cooling System; Air Filter; Cleaning The Air Filter; Fuel Filter - Husqvarna 253RJ Bedienungsanweisung

Cooling system

To keep the working temperature as low as possible the
machine is equipped with a cooling system.
2
The cooling system consists of:
1 Cooling fins on the cylinder.
2 Air intake.
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 filter
The air filter must be regularly cleaned to remove dust
and dirt in order to avoid:
• Carburettor malfunctions
• Starting problems
• Loss of engine power
• Unnecessary wear to engine parts.
204 – English
MAINTENANCE
• Excessive fuel consumption.
1
Clean the filter every 25 hours, or more regularly if
conditions are exceptionally dusty.
2
Cleaning the air filter
Remove the air filter cover and take out the filter. Wash it
clean in warm, soapy water. Ensure that the filter is dry
before refitting it.
An air filter that has been in use for a long time cannot be
cleaned completely. The filter must therefore be replaced
with a new one at regular intervals. A damaged air filter
must always be replaced.
Fuel filter
1 Fuel filter
When the engine runs short of fuel supply, check the fuel
cap and the fuel filter for blockage.
1