Cooling System; Spark Plug; Two-Part Shaft - Husqvarna 325C X Series Operator's Manual

MAINTENANCE
Muffler
NOTE!
Some mufflers are fitted with a catalytic convelter. See
"Ted_ni_aI data"to see whether your machine is fitted with a
catalytic converter.
The muffler is designed to
dampen the noise level and
to direct the exhaust fumes
away from the user. The
exhaust fumes are hot and
can contain sparks, which
can result in fire if the
exhaust fumes are directed
towards a dry and
inflammable material. Some
mufflers are equipped with a
special spark arrest screen. If
your machine is fitted with
this type of screen it should
be cleaned regularly. This is
done using a wire brush. On
mufflers without a catalytic
converter the screen should
be cleaned weekly, or
replaced if necessary. On
mufflers fitted with a
catalytic converter the
screen should be checked
and cleaned monthly. If the
screen is damaged it should
he replaced. If the screen is
frequently blocked, this can
be a sign that the function
of the catalytic converter is
impaired. Contact your
dealer to inspect the muffler.
A blocked screen will cause
the engine to overheat
resulting in damage to the
cylinder and piston. Also see
under "aaintenanee '_
NOTE!
Never use a machine with a defpctive muffles-.
Cooling system
To maintain as low opera-
ring temperature as possible
the engine is equipped with
a cooling system.
The cooling system consists
of:
1.An
air intake on the
staster unit.
2. Cooling fins on the
flywheel.
3.
Cooling fins on the
cylinder
4. Cylinder cover (leads cold
air onto the cylinder).
Clean the cooling system using a brush at least once a week, in
difficult conditions more often.
A
dirty or blocked cooling system leads to the engine
overheating resulting in damage to the cylinder and piston.
Spark plug
The condition of the spark
plug is affected by:
• An incorrect carburetor
setting.
• An incorrect fuel
mixture (too much or
faulty oil).
• A dirty air filter.
These factors cause
deposits on the spark plug
electrode that may result in
malfunction or stasting
difficulties.
If the machine is low on power, difficult to start or runs
poorly while idling always check the spark plug first.
If the spark plug is dirty, clean it and at the same time check
that the electrode gap is 0.5 mm. The spark plug should be
changed after about one month of operation or earlier if
necassary.
NOTE!
Always use the re.commended type of spark plug.
An
incorrect spark plug can damage the cylinder/piston.
Two-part shaft
The end of the drive axle in
the lower shaft should be
lubricated with grease every
30 hours. There is a risk that
the drive axle ends (splined
coupling) on two-past shafts
jam if they are not lubricated
regularly.
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