Safety Precautions; Pressure Regulators - Cebora bravo 165 combi Manual De Instrucciones

7 SAFETY PRECAUTIONS

7.1 Fire
Avoid causing fire because of sparks, slag,
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hot metal or pieces.
Make sure that suitable fire-fighting equip-
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ment is available close to welding area.
Remove all flammable and combustible material from the
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welding area and its surrounding (32 ft minimum).
Do not weld containers of combustible or flammable
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material, even when empty. These must be carefully cleaned
before being welded.
Allow the welded material to cool down before touching it or
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putting it in contact with combustible or flammable material.
Do not weld parts with hollow spaces, containing flammables.
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Do not work under conditions with high concentrations of
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combustible vapours, gases, or flammable dust.
Always check the work area half an hour after welding so as
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to make sure that no fire has started.
Do not keep any combustible material such as lighters or
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matches in your pockets.
7.2 Burns
Wear fire-proof clothing all over your body in order to protect
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your skin against burns caused by ultraviolet radiation given off
by the arc, and from weld metal sparks and slag.
Wear protective clothing-gauntlet gloves designed for use
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in welding, hat and high safety-toe shoes. Button shirt collar
and pocket flaps, and wear cuff-less trousers to avoid entry
of sparks and slag.
Wear helmet with safety goggles and glasses with side
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shields underneath, appropriate filter lenses or plates (pro-
tected by clear cover glass). This is a MUST for welding to
protect the eyes from radiant energy and flying metal.
Replace cover glass when broken, pitted, or spattered.
Avoid oil or greasy clothing. A spark may ignite them.
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Hot metal such as electrode stubs and workpieces should
never be handled without gloves.
First-aid facilities and a qualified first-aid person should be
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available for each shift unless medical facilities are close by for
immediate treatment of flash burns of the eyes and skin burns.
Ear plugs should be worn when working on overhead or in
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a confined space. A hard hat should be worn when others work
overhead.
Flammable hair preparations should not be used by persons
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intending to weld or cut.
7.3 Fumes
Welding operations give off harmful fumes and metal dusts
which may be hazardous to your health, therefore:
Work in a well-ventilated area.
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Keep your head out of fumes.
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In closed areas, use suitable exhaust fans.
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If ventilation is not enough, use breathing sets approved for
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this procedure.
Clean the material to be welded of any solvents or halogen
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degreasers giving rise to toxic gases. Some clorine solvents
may decompose with the radiation emitted by the arc, and
create phosgene gas.
Do not weld plated metals or those containing lead, graphite,
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cadmium, zink, chrome, mercury or beryllium, unless you
have the proper breathing set.
The electric arc creates ozone. A long exposure to high
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concentrations may cause headaches, nasal, throat and eye
irritation as well as serious congestions and chest pains.
IMPORTANT: DO NOT USE OXYGEN FOR VENTILATION.
Gas leaks in a confined space should be avoided. Leaked gas
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in large quantities can change oxygen concentration dangerously.
Do not bring gas cylinders into a confined space.
DO NOT WELD where solvent vapors can be drawn into the
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welding atmosphere or where the radiant energy can penetra-
te to atmospheres containing even minute amounts of
trichloroethylene or perchloroethylene.
7.4 Explosions
Do not weld above or near containers under pressure.
Do not weld in environments containing explosive
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dusts, gases or vapours.
This welding machine uses inert gases such as CO
GON, or a mixture of ARGON + CO
arc, thus you should take special precautions:
A) CYLINDERS
Do not directly connect cylinder to the machine gas hose
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without a pressure regulator.
Handle or use pressure cylinders in conformity with the
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existing rules.
Do not use leaking or damaged cylinders.
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Do not use cylinders which are not well secured.
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Do not carry cylinders without the protection of the installed
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valve.
Do not use cylinders whose content has not been clearly
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identified.
Never lubricate cylinder valves with oil or grease.
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Do not put the cylinder in electrical contact with the arc.
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Do not expose cylinders to excessive heat, sparks, molten
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slags or flame.
Do not tamper with the cylinder valves.
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Do not try to loosen tight valves by means of hammers,
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keys, or any other object.
NEVER DEFACE or alter name, number, or other markings
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on a cylinder. It is illegal and hazardous.
Do not lift cylinders off the ground by their valves or caps,
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or by chains, slings or magnets.
Never try to mix any gases in a cylinder.
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Never refill any cylinder.
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Cylinder fittings should never be modified or exchanged.
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B) PRESSURE REGULATORS
Keep pressure regulators in good condition. Damaged
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regulators may cause damages or accidents, they should
only be repaired by skilled personnel.
Do not use regulators for gases other than those for which
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they are manufactured.
Never use a leaking or damaged regulator.
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Never lubricate regulators with oil or grease.
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C) HOSES
Replace hoses which appear damaged.
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Keep hoses unwound in order to avoid bending.
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Keep the excess hose wound and out of the working area
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in order to avoid any damage.
, AR-
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for the protection of the
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