Warning important, Maintenance, Important warning important – RedMax US-1 EBZ5100Q User Manual

Page 14

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US-14

EBZ5100Q

held by three bolts (F18 (2)).
(Fastening Torque : 8 to 12 N·m)

• Also make sure that the speak arrester

and the diffuser are properly attached
with four bolts (F18 (1)). (Fastening
Torque : 2 to 3 N·m)

• Even if one of seven bolts is loose, it

may result in engine catching on fire.

(1) Bolt
(2) Bolt
(3) Spark arrester
(4) Diffuser

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 Pulic
Resources Code) to equip a spark
arrester when a gas powered tool is
used in any forest covered, bush
covered, or grass covered unimproved
land.

PROCEDURES TO BE PERFORMED

AFTER EVERY 100 HOURS OF USE

1. Remove the muffler, insert a

screwdriver into the vent, and wipe
away any carbon buildup. Wipe away
any carbon buildup on the muffler
exhaust vent and cylinder exhaust port
at the same time.

2. Tighten all screws, bolts, and fittings.

AIR INLET NET

• Blowing air is taken in from the air inlet

net. When air flow has dropped down
during operation, stop the engine and
inspect the air inlet net for blocking by
obstacles.

• Note that failure to remove any such

obstacles may result in the engine
becoming overheated and damaged.

(1) Net

Never use the blower without the net of
the blower. Before each use, check
that the net is attached in place and is
free from any damage.

WARNING

IMPORTANT

F18

9. Maintenance

F17

(1)

F20

F19

FUEL FILTER
• A clogged fuel filter may cause poor

acceleration of the engine. Check
periodically to see if the filter is clogged
with dirt. The filter can be taken out of
the fueling port using a small wire hook.
Disconnect the filter assembly from the
fuel pipe and unhook the retainer to
disassemble it. Clean the components
with gasoline.

(1) Screen
(2) Element
(3) Holder
(4) Retainer

SPARK PLUG
• The spark plug may gather carbon

deposits on its firing end with
reasonable use. Remove and inspect
the spark plug every 25 hours and clean
the electrodes as necessary with a wire
brush. The spark gap should be
adjusted to .025 in (0.6~0.7mm).

• Plug manufacturers recommend

replacing the plug twice a year to avoid
unexpected plug failure in a job.

REPLACEMENT PLUG IS A NGK
CMR7H.

• Note that using any spark plugs 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.

MUFFLER

• Inspect periodically, the muffler for

loose fasteners, any damage or
corrosion. If any sign of exhaust
leakage is found, do not use the blower
and have it repaired immediately.

• Note that failing to do so may result

in the engine catching on fire.

• Before starting operation, always make

sure to check if the muffler is properly

IMPORTANT

WARNING

IMPORTANT

F16

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