Muffler; Cooling System; Air Filter - Jonsered BP2040C Operator's Manual

Muffler

NOTE! Some mufflers are fitted with a catalytic converter. See
"Technical 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 be
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
"Maintenance".
NOTE! Never use a machine with a defective muffler.
!
WARNING!
Mufflers fitted with catalytic converters
become extremely hot during use and
after stopping. This also applies at idling
speeds. Contact can result in burns to
the skin. Be observant to the risk of fire!
MAINTENANCE

Cooling system

To maintain as low an
operating temperature as
possible the engine is
equipped with a cooling
system.
The cooling system consists
of:
1.An air intake on the
starter 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.

Air filter

The air filter should be
cleaned regularly removing
dust and dirt to avoid:
• carburetor malfunction
• starting problems
• reduced engine power
• unnecessary wear to
engine parts
• abnormal fuel
consumption
Clean the filter after every
25 hours or more regularly
if operating conditions are
exceptionally dusty.
Cleaning the air filter
Dismantle the air filter
cover and remove the air
filter. Wash in clean, warm
soapy water. Ensure that the
filter is dry before refitting.
An air filter used for a long
period of time can never be
cleaned completely.
Therefore it is necessary to
replace the filter from time
to time with a new filter. A
damaged air filter must
always be replaced.
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