Zenoah BT250 Owner's Manual page 38

MA5
38
English
9. Maintenance
■ MUFFLER
• Inspect periodically, the muffler for loose
fasteners, any damage or corrosion. If any sign
of exhaust leakage is found, do not use the
brushcutter and have it repaired immediately.
• Note that failing to do so may result in the
engine catching on fire.
■ SPARK ARRESTER
• The muffler is equipped with a spark arrester to
prevent red hot carbon from flying out of the exhaust
outlet. Periodically inspect and clean as necessary
with a wire brush. In the State of California it is
required by law (Section 4442 of the California
Public Resources Code) to equip a spark arrester
when a gas powered tool is used in any forest
(1)
covered, brush covered, or grass covered
unimproved land. (MA5)
(1) Spark arrester
■ INTAKE AIR COOLING VENT
• Never touch the cylinder, muffler, or spark plugs
with your bare hands immediately after stopping
the engine. The engine can become very hot
when in operation, and doing so could result in
severe burns.
• When checking the brushcutter to make sure
that it is okay before using it, check the area
around the muffler and remove any wood chips
or leaves which have attached themselves to the
brushcutter. Note that failing to do so could
cause the muffler to become overheated, and
that this in turn could cause the brushcutter to
catch on fire. Always make sure that the muffler
is clean and free of wood chips, leaves, and
other waste before use.
• Check the intake air cooling vent and the area
around the cylinder cooling fins after every 25 hours
of use for blockage, and remove any waste which
has attached itself to the brushcutter. Note that it is
necessary to remove the plug guard shown in Figure
20 in order to be able to view the upper part of the
cylinder.
WARNING
WARNING