Panasonic YD-500KR Operating Instructions Manual page 6

Oxygen deficit, fume and gas
generated during welding can be
hazardous.
To prevent gas poisoning and suffocation by the gas generated during welding, use a local exhauster specified by the
applicable law, or wear protective breathing gear.
To prevent dust injury or poisoning by the fume generated during welding, use a local exhauster specified by the
applicable law, or wear protective breathing gear.
When conducting welding in the bottom of the tank, boiler or hold, make sure to provide sufficient ventilation or wear
protective breathing gear.
settles in the bottom if conducted in such area.
When conducting welding in a confined area, make sure to provide sufficient ventilation or wear protective breathing
gear and have a trained supervisor observe the workers.
Do not conduct welding at a site where degreasing, cleaning or spraying is performed. Conducting welding near the
area where any of these types of work is performed can generate toxic gases.
When welding a coated steel plate, provide sufficient ventilation or wear protective breathing gear.
coated steel plates generates toxic fume and gas.)
Against fire, explosion or blowout
Observe the following cautions to
prevent fires explosion or blowout.
Remove any combustible materials at and near the work site to prevent them from being exposed to the spatter.
they cannot be relocated, cover them with a fireproofing cover.
Do not conduct welding near combustible gases.
Do not bring the hot base metal near combustible materials immediately after welding.
When welding a ceiling, floor or wall, remove all flammables including ones located in hidden places.
Properly connect cables and insulate connected parts.
current path of the base metal, such as steel beam, can cause fire.
Connect the base metal cable at a section closest to the welding part.
Do not weld a sealed tank or a pip that contains a gas.
Keep a fire extinguisher near the welding site for an emergency.
CAUTIONS
Installing shielding (curtain etc.)
Arc flash, flying spatter, slugs, and
noise generated during welding can
damage your eyes, skin and hearing.
Install a protective curtain around the welding manipulator site to prevent the arc flash from entering the eyes of people
in the surrounding area.
When welding or monitoring welding, wear safety glasses with sufficient light blocking performance or use a protective
mask designed for welding operation.
When welding or monitoring welding wear protective closes designed for welding operation, such as leather gloves,
Gas heavier than air generated during welding, such as carbon dioxide gas or argon gas
Improper cable connections or touching of cables to any
4
(Welding of
If