US-15
HEZ230S
U
S
• Make sure that the engine has
stopped and is cool before
performing any service to the
machine. Contact with moving
cutting attachment or hot muffler
may result in a personal injury.
■
AIR FILTER
The air filter must be regularly cleaned to
remove dust and dirt in order to avoid:
• Carburetor malfunctions
• Starting problems
• Loss of engine power
• Unnecessary wear to engine parts
• Excessive fuel consumption.
Clean the filter every 25 hours, or more
regularly if conditions are exceptionally
dusty. (MA1)
(1) felt (2) urethane
Cleaning the air filter:
Close the choke valve by moving the
choke control up. (MA2)
(3) choke lever
• Remove the air filter cover and take out
the filter. Wash it clean in warm, soapy
water. Clean also the inside of the filter
cover by using air or a brush. Ensure
that the filter is dry before refitting it.
• Remove the Felt filter from the filter
holder and gently brush debris from the
filter. An air filter that has been in use
for a long time cannot be cleaned
completely. The filter must therefore be
replaced with a new one at regular
intervals. A damaged air filter must
always be replaced. Damaged, very
dirty, or fuel-soaked air filter must
always be replaced.
■
FUEL FILTER
• When the engine runs short of fuel
supply, check the fuel cap and the fuel
filter for blockage. (MA3)
(1) fuel filter
WARNING
9. Maintenance
■
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
specified by RedMax. (MA4)
• REPLACEMENT PLUG IS A NGK
BPMR8Y.
• 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:
126~185 in-lbs
(14.7~21.6 N.m.)
■
MUFFLER
• 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.
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. (MA5)
(1) spark arrester
WARNING
IMPORTANT
.025 in
0.655mm
MA4
(1)
MA5
(1)
(2)
MA1
(3)
MA2
(1)
MA3