MAINTENANCE
Cooling systemAir lter
To keep the working temperature as low as possible the The air lter must be regularly cleaned to remove dust and dirt
machine is equipped with a cooling system.in order to avoid:
" Carburettor malfunctions
4
" Starting problems
3
" Loss of engine power
2
" Unnecessary wear to engine parts.
" Excessive fuel consumption.
1
The cooling system consists of:
1 Air intake on the starter.
2 Fins on the ywheel.Clean the lter every 25 hours, or more regularly if conditions
are exceptionally dusty.
3 Cooling ns on the cylinder.
4 Cylinder cover (directs cold air over the cylinder).Cleaning the air lter
Clean the cooling system with a brush once a week, more Remove the air lter cover and take out the lter. Wash it
often in demanding conditions. A dirty or blocked cooling clean in warm, soapy water. Ensure that the lter is dry before
system results in the machine overheating which causes retting it.
damage to the piston and cylinder.
An air lter that has been in use for a long time cannot be
cleaned completely. The lter must therefore be replaced with
Spark pluga new one at regular intervals. A damaged air lter must
always be replaced.
If the machine is used in dusty conditions the air lter should
be soaked in oil. See instructions under the heading Oiling the
The spark plug condition is inuenced by:air lter.
" Incorrect carburettor adjustment.
Oiling the air lter
" An incorrect fuel mixture (too much or incorrect type of
oil).
" A dirty air lter.
These factors cause deposits on the spark plug electrodes, Always use HUSQVARNA lter oil, art. no. 503 47 73-01. The
lter oil contains a solvent to make it spread evenly through
which may result in operating problems and starting the lter. You should therefore avoid skin contact.
difculties.
Put the lter in a plastic bag and pour the lter oil over it.
If the machine is low on power, difcult to start or runs poorly Knead the plastic bag to distribute the oil. Squeeze the
at idle speed: always check the spark plug rst before taking
any further action. If the spark plug is dirty, clean it and check excess oil out of the lter inside the plastic bag and pour off
that the electrode gap is 0.5 mm. The spark plug should be the excess before tting the lter to the machine. Never use
common engine oil. This would drain through the lter quite
replaced after about a month in operation or earlier if quickly and collect in the bottom.
necessary.
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 tted with a suppressor.
English 19 |
ACEC
HUSQVARNA
