STAYER WELDING POTENZA TIG 170 HF GE Manual De Instrucciones página 33

• Do not weld on coating materials such as galvanized steel,
lead, or cadmium-coated steel, unless the coating has been
removed from the welding area, the area is well ventilated and
while using a respirator with a source of air. Coatings of any
material containing these elements may cause smoke being
emitted when welding.
BOLTS EMITTED BY THE ARC may burn your eyes and skin.
Bolts emitted by the arc of a welding process produce intense
heat and strong ultraviolet rays that may burn eyes and skin.
• Use an authorized welding mask having a lens-filter shade to
protect your face and eyes while welding or looking, cf. safety
standards ANSI Z249.1, Z175, EN379.
• Use authorized safety goggles having lateral protection.
• Use protective screens or barriers to protect others from
flashes, reflections and sparks; alert others not to look at the arc.
• Use protective clothing made of durable, flame-resistant
material (leather, thick cotton or wool) and protection to your feet.
WELDING may cause fire or explosion.
Welding at a closed container such as tanks, drums or tubes
may cause explosion. Sparks may fly from a welding arc. Flying
sparks, the hot workpiece and the hot equipment may cause fire
and burns. Accidental contact of the electrode with metal articles
may cause speaks, explosion, overheating, or fire.
Check and make sure that the area is safe before starting any
welding.
• Remove any inflammable material from within a distance of 11
m of the welding arc. When this is not possible, cover it tightly
with authorized covers.
• Do not weld where sparks may impact on inflammable material.
Protect yourself and others from flying sparks and hot metal.
• Be alert to that weld sparks and hot materials from the welding
operation may pass through small cracks or openings in adjacent
areas.
• Always watch that there is no fire and keep near an extinguisher.
• Be alert to that, when welding a ceiling, floor, wall or any kind
of separation, heat may cause fire at a hidden part which cannot
be seen.
• Do not weld within closed receptacles such as tanks or drums
or piping unless they have been prepared appropriately in
accordance with AWS F4.1.
• Do not weld where the atmosphere might contain inflammable
dust, gas or vapors from liquids (such as gasoline).
• Connect the work cable to the work area as near as possible to
the place where you will be welding, in order to prevent welding
current from long traveling possibly through unknown parts
causing electrical shock, sparks and fire hazard.
• Do not use welding to deice frozen pipes.
• Remove electrode from the electrode carrier or cut the welding
wire close to the contact pipe when you are not using it.
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• Use protective clothing without oil, such as leather gloves,
heavy shirt, closed trousers without patches, high shoes or boots
and a cap.
• Keep away from you any fuel as butane lighters or matches,
before starting to weld.
• After completing work, inspect area to make sure that it is free
of sparks, embers and flames.
• Only use correct fuses or circuit breakers. Do not put ones of
larger size or pass them by one side.
• Follow the regulations in OSHA 1910.252(a) (2) (iv) and NFPA
51B for hot work and have near a person to take care of fire and
an extinguisher.
FLYING METAL OR SLAG may injure eyes
• Welding, grinding, wire brushing or polishing may produce
sparks or flying metal. When welds are cooling down they may
release slag.
• Use authorized safety goggles with lateral guards down to
underneath your mask.
GAS ACCUMULATION may make you sick OR KILL YOU.
• Close shielding gas when not using it.
• Always give ventilation to closed spaces, or use an authorized
respirator that replaces air.
MAGNETIC FIELDS may affect implanted medical devices.
• Persons using pace makers or other implanted medical devices
must stay away.
• Persons using implanted medical devices must consult their
doctor and the manufacturer of the apparatus before approaching
arc welding, point welding, slotting, plasma cutting, or induction
heating operations.
NOISE may injure your inner ear.
• The noise of some processes or equipment may harm your
inner ear. Use authorized ear protection when the level of noise
is very high or above 75 dBa.
THE CYLINDERS may burst when they have failures.
Cylinders containing shielding gas contain that gas under high
pressure. The cylinders may burst when they have failures. As
the cylinders are usually part of the welding process, always
handle them with care.
• Protect pressurized gas-containing cylinders from excessive
heat, mechanical impacts, physical damage, slag, flames,
sparks and arcs.
• Install and secure the cylinders in a vertical position securing
them to a stationary support or a cylinder holder to prevent them
from falling down or collapsing.
• Keep cylinders far away from electric or welding circuits.
• Never wrap the welding torch about a gas cylinder.
• Never allow an electrode to contact any cylinder.
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