Cebora GTF4 Manual De Instrucciones página 8

• Do not keep any combustible material such as lighters or
matches in your pockets.
5.2 Burns
• Wear fire-proof clothing all over your body in order to pro-
tect 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 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
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.
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
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
a confined space. A hard hat should be worn when others
work overhead.
• Flammable hair preparations should not be used by per-
sons intending to weld or cut.
5.3 Fumes
Welding operations give off harmful fumes and metal
dusts which may be hazardous to your health, the-
refore:
• Work in a well-ventilated area.
• Keep your head out of fumes.
• In closed areas, use suitable exhaust fans.
• If ventilation is not enough, use breathing sets approved for
this procedure.
• Clean the material to be welded of any solvents or halogen
degreasers giving rise to toxic gases. Some chlorine solvents
may decompose with the radiation emitted by the arc, and
create phosgene gas.
• Do not weld plated metals or those containing lead, graphi-
te, cadmium, zink, chrome, mercury or beryllium, unless you
have the proper breathing set.
• The electric arc creates ozone. A long exposure to high con-
centrations may cause headaches, nasal, throat and eye irri-
tation 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 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 welding atmosphere or where the radiant energy can
penetrate to atmospheres containing even minute amounts
of trichloroethylene or perchloroethylene.
5.4 Explosions
Do not weld above or near containers under pressu-
re.
• Do not weld in environments containing explosive
dusts, gases or vapours.
8
This welding machine uses inert gases such as CO2,
ARGON, or a mixture of ARGON + CO2 for the protection of
the arc, thus you should take special precautions:
A) CYLINDERS
• Do not directly connect cylinder to the machine gas hose
without a pressure regulator.
• Handle or use pressure cylinders in conformity with the exi-
sting rules.
• Do not use leaking or damaged cylinders.
• Do not use cylinders which are not well secured.
• Do not carry cylinders without the protection of the installed
valve.
• Do not use cylinders whose content has not been clearly
identified.
• Never lubricate cylinder valves with oil or grease.
• Do not put the cylinder in electrical contact with the arc.
• Do not expose cylinders to excessive heat, sparks, molten
slags or flame.
• Do not tamper with the cylinder valves.
• Do not try to loosen tight valves by means of hammers,
keys, or any other object.
• NEVER DEFACE or alter name, number, or other markings
on a cylinder. It is illegal and hazardous.
• Do not lift cylinders off the ground by their valves or caps,
or by chains, slings or magnets.
• Never try to mix any gases in a cylinder.
• Never refill any cylinder.
• Cylinder fittings should never be modified or exchanged.
B) PRESSURE REGULATORS
• Keep pressure regulators in good condition. Damaged
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
they are manufactured.
• Never use a leaking or damaged regulator.
• Never lubricate regulators with oil or grease.
C) HOSES
• Replace hoses which appear damaged.
• Keep hoses unwound in order to avoid bending.
• Keep the excess hose wound and out of the working area
in order to avoid any damage.
5.5 Radiations
Ultra-violet radiation created by the arc may damage
your eyes and burn your skin. Therefore:
• Wear proper clothing and helmet.
• Do not use contact lenses!! The intense heat coming from
the arc may cause them to stick to the cornea.
• Use masks with grade DIN 10 or DIN 11 safety lenses at
the least.
• Protect people in the surrounding welding area.
Remember: the arc may dazzle or damage the eyes. It is con-
sidered dangerous up to a distance of 15 meters (50 feet).
Never look at the arc with the naked eye.
• Prepare the welding area so as to reduce reflection and
transmission of ultra-violet radiation. Paint walls and exposed
surfaces in black to reduce reflection, install sheathings or
curtains to reduce ultra-violet transmissions.
• Replace mask lenses whenever damaged or broken.