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9. Maintenance
■ AIR FILTER
MA4
• The air filter, if clogged, will reduce the
engine performance. Check and clean
the filter element. If the element is
broken or clogged, replace with a new
one. (MA4)
(1)
(1) air filter
■ FUEL FILTER
MA5
• When the engine runs short of fuel
supply, check the fuel cap and the fuel
filter for blockage. (MA5)
(1) fuel filter
(1)
■ SPARK PLUG
• Starting failure and mis-firing are often
MA6
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
specified by RedMax. (MA6)
.026 in
0.65 mm
• REPLACEMENT PLUG IS A NGK
CMR7H.
• 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.
IMPORTANT
TIGHTENING TORQUE:
87~104 in-lbs
(9.8~11.8 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
• The muffler is equipped with a spark
arrester to prevent red hot carbon from
flying out of the exhaust outlet.
MA7
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
(1)
land. (MA7)
(1) spark arrester
MA8
■ GEARCASE AND CUTTERCASE
(MA8)
• Periodically refill the case with grease
(every 25 hours).
• Use only lithium based greases.
(1) Screw
(2) Seal washer
(3) Grease: approx. 10cc
(4) Air purge
(5) Bolt
(6) Grease: approx. 5cc
■ 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.
• When checking the machine 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 machine. Failing
SGCZ2460S
U
S
US-15
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