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8. Maintenance
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catching on fire.
■ SPARK ARRESTER (MA4)
• 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 covered, brush covered, or
grass covered unimproved land.
(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.
• Clean the cylinder fins with compressed air or a
brush. (MA5)
(1) Cylinder
(2) Intake air cooling vent (back)
• If waste gets stuck and causes blockage around the
intake air cooling vent or between the cylinder fins, it
may cause the engine to overheat, and that in turn
may cause mechanical failure on the part of the
hedge-trimmer.
■ BLADES
Oil blades each gas tank filling. (MA6)
• Make sure that the blade bolts are well tightened.
• The blade assembly is designed to automatically
compensate for any play between the blades.
WARNING
IMPORTANT
WARNING
MA5
MA4
MA6