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English---17
545196741 Rev. 2 4/30/09
MAINTENANCE
W ARNING: The inside of the
muffler contain chemical s th at may
be carcinoge nic. Avoid contact with
these elements in the event of a
damage d muffler .
WARNING: Bear in mind th at:
Engine ex haust fumes contain car-
bon monoxide, which can cause
carbon monoxide poisoning. For
this reason you shoul d not sta rt or
run the machine indoors, or any-
where that is poorly ve ntilated.
The exhaust fume s fro m the engine
are hot and may contain spark s
which can star t a fir e. Never start
the machine indoors or near com-
bustible material!
Spark plug
The spark plug condition is influenced by:
S Incorr ect carburetor adjustment.
S An incorrect fuel mixture (too much or in-
correct type of oil).
S A dirty air filter.
These fact ors cause deposits on the spar k
plug electrodes , which may result in operat-
ing problems and starting difficulties.
If the machine is low on power, difficult to
start or runs poorly at idle speed: always
check the spark plug first before taking
any further action. If the spark plug is dirty,
clean it and check that the electrode gap is
0,6 mm. The spark plug should be replaced
after about a month in operation or earlier if
necessary.
CAUTION! Always use the recommended
spark plug ty pe! Use of the wrong spark
plug can damage the piston/cylinder.
0,6 mm
Air filt er
The air filter must be regularly cleaned to
remove dust and dirt in order to avoid:
S Carburetor malfunctions
S Starting problems
S Loss of engine power
S Unnecessary wear to engine parts
S Excessive fuel cons um ption
Clean the filter every 25 hours, or more
regularly if conditions are exc eptionally
dusty.
Cleaning the air filter
Remove the air filter cover and take out the
filter. Wash it clean in warm, soapy water.
Rinse thoroughly. Ensure that the filter is dry
before refitt ing 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.
Bevel gear
(128L)
The bevel gear is filled with the right quan-
tity of greas e at the factory. However, be-
fore using the machine you should check
that the bevel gear is filled three--quar ters
full with grease. Us e HUSQVARNA special
grease.
The grease in the bevel gear does not nor-
mally need to be changed except if repairs
are carried out.
W ARNING: Muffle rs fitted with
catalyti c conve rters get very hot
duringuseandremainsoforsome
time after stopping. This also applies
at idle speed. Cont act can resu lt in
burns to the skin. Remember the risk
of fire!