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WARNING
Make sure that the engine has
stopped and is cool before
performing any service to the
machine. Contact with moving
cutting head or hot muffler may
result in a personal injury.
AIR FILTER
• The air filter, if clogged, will reduce
the engine performance. Check
and clean the filter element in
warm, soapy water as required.
Dry completely before installing.
If the element is broken or shrunk,
replace with a new one. (MA1)
(1) Air filter
FUEL FILTER
• When the engine runs short of
fuel supply, check the fuel cap and
the fuel filter for blockage. (MA2)
(1) Fuel filter
SPARK PLUG
• Starting failure and mis-firing are
often caused by a fouled spark
plug.
Clean the spark plug and check
that the plug gap is in the correct
range. For a replacement plug,
use the correct type
REPLACEMENT PLUG IS LD L8RTF
IMPORTANT
• Note that using any spark plug
other than those designated may
result in the engine failing to
operate properly or in the engine
becoming overheated and
damaged.
• To install the spark plug, first turn the
plug until it is finger tight, then
tighten it a quarter turn more with
a socket wrench.
TIGHTENING TORQUE:
87~121 in-lbs
(9.8~13.7 N.m.)
MUFFLER
WARNING
• Inspect periodically, the muffler for
loose fasteners, any damage or
corrosion. If any sign of exhaust
leakage is found, stop using the
machine and have it repaired
immediately.
• Note that failing to do so may result
in the engine 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.
44
Periodically inspect and clean as
necessary with a wire brush.
In the State of California it is requi-
red 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
WARNING
• 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)
IMPORTANT
• 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)
WARNING
• Make sure that the blade bolts are
well tightened.
• The blade assembly is designed to
automatically compensate for any
play between the blades.
SHARPENING (MA7)
Always keep the file or sharpener at
an angle of 45° to the blade, and:
• Always grind in the direction of the
cutting edge;
• Note: files cut only in one direction; lift
the file from the blade when returning
to start a new pass;
• Remove all burr from the edge of
the blade with a slip stone;
• Remove as little material as possible;
• Before refitting the sharpened blades,
remove filings and then apply grease.
Do not try to sharpen a damaged
blade: change it or take it to a
Service dealer.
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