mm). The spark plug should be replaced after about a
month in operation or earlier if 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 ﬁtted with a
The air ﬁlter must be regularly cleaned to remove dust
and dirt in order to avoid:
Loss of engine power
Unnecessary wear to engine parts
Excessive fuel consumption.
Clean the ﬁlter every 25 hours, or more regularly if
conditions are exceptionally dusty.
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.
If the machine is used in dusty conditions the air ﬁlter
should be soaked in oil. See instructions under the
heading Oiling the air ﬁlter.
24 – English
Oiling the air ﬁlter
Always use HUSQVARNA ﬁlter oil, art. no. 531 00 92-48.
The ﬁlter oil contains a solvent to make it spread evenly
through the ﬁlter. You should therefore avoid skin contact.
Put the ﬁlter in a plastic bag and pour the ﬁlter oil over it.
Knead the plastic bag to distribute the oil. Squeeze the
excess oil out of the ﬁlter inside the plastic bag and pour
off the excess before ﬁtting the ﬁlter to the machine. Never
use common engine oil. This would drain through the ﬁlter
quite quickly and collect in the bottom.
The angle gear is ﬁlled with a sufﬁcient quantity of grease
at the factory. However, before using the machine you
should check that the angle gear is ﬁlled to 3/4 with
grease. Use HUSQVARNA special grease.
The grease in the bevel gear does not normally need to
be changed except if repairs are carried out.
1151020-95 Rev. 2 2008-03-10