Panasonic YC-300BZ3YHD Operating Instructions Manual page 7

Against fire, explosion or blowout
Observe the following cautions to
prevent fires explosion or blow-
out.
(1) Remove any combustible materials at and near the
work site to prevent them from being exposed to the
spatter. If they cannot be relocated, cover them with a
fireproofing cover.
(2) Do not conduct welding near combustible gases.
Do not place the welding power source near combusti-
ble gases, otherwise, such gases may catch fire from a
spark of electricity inside the welding power source as
it is electric equipment.
(3) Do not bring the hot base metal near combustible
materials immediately after welding.
(4) When welding a ceiling, floor or wall, remove all flam-
mables including ones located in hidden places.
Installing shielding (curtain etc.)
Arc flash, flying spatter and slugs
generated during welding can dam-
age your eyes, skin and hearing.
(1) When welding or monitoring welding, wear safety
glasses with sufficient light blocking performance or
use a protective mask designed for welding operation.
(2) Wear protective glasses to protect your eyes from
spatter or slugs.
(3) When welding or monitoring welding, wear protective
clothes designed for welding operation, such as
leather gloves, leg cover and leather apron, and also
wear long-sleeve shirts.
(4) Install a protective curtain around the welding manipu-
lator site to prevent the arc flash from entering the
eyes of people in the surrounding area.
Noise
Noise from some processes or
equipment can damage hearing.
(1) Follow the local regulations and wear ear protection,
such as ear plug or hear muff.
(2) The larger the welding current is, the larger the noise
becomes.
Gas cylinder and gas flow regulator
Overturn of gas cylinder and
blowout of gas flow regulator can
cause injury.
(1) The gas cylinder must be handled properly according
to the applicable law and in-house standards.
(2) Use the gas flow regulator that is supplied or recom-
mended by our company.
(3) Read the instruction manual of the gas regulator prior
to using it, observe the cautions in the manual
(4) Secure the gas cylinder to a dedicated gas cylinder
stand.
OMCTT5621E18
WARNING
(5) Wire the cables correctly and connect them tightly.
Insulate the connected parts surely so that no exposed
conductive part touches the cases or housings. (Poor
cable connection or incomplete current path on the
base metal side, such as steel, if any, can cause fire
due to the heat generated by energization.)
(6) Connect the base metal cable as close to the welding
position as possible. (If not, unexpected current path
may be created, which can cause fire due to the heat
generated by energization.)
(7) Properly connect cables and insulate connected parts.
Improper cable connections or touching of cables to
any electric current passage of the base metal, such
as steel beam, can cause fire.
(8) Do not weld a sealed tank or a pipe that contains a gas.
(9) Keep a fire extinguisher near the welding site for an
emergency.
CAUTION
(5) Do not expose the gas cylinder to high temperature.
(6) When opening the valve of the gas cylinder, do not
bring your face close to the discharge outlet.
(7) When the gas cylinder is not used, be sure to install a
protective cap.
(8) Do not hang the welding torch on the gas cylinder, or
touch the gas cylinder with the electrode.
Rotating parts
(1) Keep away from rotating parts such as cooling fans,
feed roller of the wire feeder, or hand, finger(s) hair or
part of your clothes may be caught by the parts result-
ing in injury.
(2) Keep all covers, panels and cases closed when using
the product.
(3) Maintenance work and repair should be perform only
by educated and/or skilled persons who thoroughly
understand welding machines. While performing
maintenance or repair work, provide fence or the like
around the welding machine so that unauthorized per-
son can not come close carelessly.
Against insulation deterioration
(1) Keep enough distance from welding power source
when performing welding or grinding work so as to pre-
vent such spatters or iron particles from getting into the
power source.
(2) Perform check and maintenance work periodically so
as to prevent insulation deterioration due to accumu-
lated dust or dirt.
(3) When spatters or iron particles get into the welding
power source, turn off the power switches of the weld-
ing power source and power distribution box, and then
blow out.
Safety precautions
Rotating parts can cause injury.
Insulation deterioration can cause
fire of welding power source.
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