MAINTENANCE
Cooling systemAir Ţlter
To keep the working temperature as low as possible the The air Ţlter must be regularly cleaned to remove dust and dirt
machine is equipped with a cooling system.in order to avoid:
? Carburettor malfunctions4
? Starting problems
3
? Loss of engine power
2
? Unnecessary wear to engine parts.
? Excessive fuel consumption.
Clean the Ţlter every 25 hours, or more regularly if conditions
1are exceptionally dusty.
The cooling system consists of:
1 Air intake on the starter.
2 Fins on the �ywheel.
3 Cooling Ţns on the cylinder.
4 Cylinder cover (directs cold air over the cylinder).
Clean the cooling system with a brush once a week, more Cleaning the air Ţlter
often in demanding conditions. A dirty or blocked cooling
system results in the machine overheating which causes Remove the air Ţlter cover and take out the Ţlter. Wash it
damage to the piston and cylinder.clean in warm, soapy water. Ensure that the Ţlter is dry before
reŢtting it.
Spark plugAn air Ţlter that has been in use for a long time cannot be
cleaned completely. The Ţlter must therefore be replaced with
a new one at regular intervals. A damaged air Ţlter must
always be replaced.
The spark plug condition is in�uenced by:If the machine is used in dusty conditions the air Ţlter should
be soaked in oil. See instructions under the heading Oiling the
? Incorrect carburettor adjustment.air Ţlter.
? An incorrect fuel mixture (too much or incorrect type of
Oiling the air Ţlter
oil).
? A dirty air Ţlter.
These factors cause deposits on the spark plug electrodes,
which may result in operating problems and starting Always use HUSQVARNA Ţlter oil, art. no. 531 00 92-48. The
difŢculties.Ţlter oil contains a solvent to make it spread evenly through
the Ţlter. You should therefore avoid skin contact.
If the machine is low on power, difŢcult to start or runs poorly
at idle speed: always check the spark plug Ţrst before taking Put the Ţlter in a plastic bag and pour the Ţlter oil over it.
any further action. If the spark plug is dirty, clean it and check Knead the plastic bag to distribute the oil. Squeeze the
that the electrode gap is 0.5 mm. The spark plug should be excess oil out of the Ţlter inside the plastic bag and pour off
replaced after about a month in operation or earlier if the excess before Ţtting the Ţlter to the machine. Never use
necessary.common engine oil. This would drain through the Ţlter quite
quickly and collect in the bottom.
CAUTION! Always use the recommended spark plug type!
Use of the wrong spark plug can damage the piston/cylinder.
Check that the spark plug is Ţtted with a suppressor.
20 - English |
ACEC
HUSQVARNA
