stayer POTENZA 160 Manual De Instrucciones página 21

• Clamp work cable with good metal-to-metal contact to
workpieceor worktable as near the weld as practical.
• Insulate work clamp when not connected to workpiece to
preventcontact with any metal object.
• Do not connect more than one electrode or work cable to
anysingle weld output terminal.
4HOT PARTS can cause severe burns.
• Do not touch hot parts bare handed.
• Allow cooling period before working on gun ortorch.
• To handle hot parts, use proper tools and/orwear heavy,
insulated welding gloves andclothing to prevent burns.
4FUMES AND GASES can be hazardous.
Welding produces fumes and gases. Breathingthese fumes and
gases can be hazardous to yourhealth.
• Keep your head out of the fumes. Do not breathe the fumes.
• If inside, ventilate the area and/or use local forced ventilation at
thearc to remove welding fumes and gases.
• If ventilation is poor, wear an approved air-supplied respirator.
• Read and understand the Material Safety Data Sheets
(MSDSs)and the manufacturer's instructions for metals,
consumables,coatings, cleaners, and degreasers.
• Work in a confined space only if it is well ventilated, or
whilewearing an airsupplied respirator. Always have a trained
watch person nearby. Welding fumes and gases can displace air
andlower the oxygen level causing injury or death. Be sure the
breath-ing air is safe.
• Do not weld in locations near degreasing, cleaning, or spraying
operations. The heat and rays of the arc can react with vapors to
formhighly toxic and irritating gases.
• Do not weld on coated metals, such as galvanized, lead,
orcadmium plated steel, unless the coating is removed from the
weldarea, the area is well ventilated, and while wearing an air-
suppliedrespirator. The coatings and any metals containing
these elementscan give off toxic fumes if welded.
4ARC RAYS can burn eyes and skin.
Arc rays from the welding process produce intensevisible and
invisible (ultraviolet and infrared) raysthat can burn eyes and skin.
• Wear an approved welding helmet fitted with a proper shade of
filter lenses to protect your face and eyes when welding or
watching see ANSI Z49.1, Z87.1, EN175, EN379 listed in Safety
Standards
• Wear approved safety glasses with side shields under your
helmet.
• Use protective screens or barriers to protect others from
flash,glare and sparks; warn others not to watch the arc.
• Wear protective clothing made from durable, flame-resistant
material (leather, heavy cotton, or wool) and foot protection.
4WELDING can cause fire or explosion.
Welding on closed containers, such as tanks,drums, or pipes, can
cause them to blow up. Sparkscan fly off from the welding arc. The
flying sparks, hotworkpiece, and hot equipment can cause fires
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andburns. Accidental contact of electrode to metal objects can
causesparks, explosion, overheating, or fire. Check and be sure
the area issafe before doing any welding.
• Remove all flammables within 35 ft (10.7 m) of the welding arc. If
this is not possible, tightly cover them with approved covers.
• Do not weld where flying sparks can strike flammable material.
Protect yourself and others from flying sparks and hot metal.
• Be alert that welding sparks and hot materials from welding
can easily go through small cracks and openings to adjacent
areas.
• Watch for fire, and keep a fire extinguisher nearby.
• Be aware that welding on a ceiling, floor, bulkhead, or partition
can cause fire on the hidden side.
• Do not weld on closed containers such as tanks, drums, or
pipes,unless they are properly prepared according to AWS F4.1.
• Do not weld where the atmosphere may contain flammable
dust,gas, or liquid vapors (such as gasoline).
• Connect work cable to the work as close to the welding area as
practical to prevent welding current from traveling long, possibly
unknown paths and causing electric shock, sparks, and fire
hazards.
• Do not use welder to thaw frozen pipes.
• Remove stick electrode from holder or cut off welding wire at
contact tip when not in use.
• Wear oil free protective garments such as leather gloves,
heavy shirt, cuffless trousers, high shoes, and a cap.
• Remove any combustibles, such as a butane lighter or
matches,from your person before doing any welding.
• After completion of work, inspect area to ensure it is free of
sparks,glowing embers, and flames.
• Use only correct fuses or circuit breakers. Do not oversize or by-
pass them.
• Follow requirements in OSHA 1910.252 (a) (2) (iv) and NFPA
51Bfor hot work and have a fire watcher and extinguisher nearby.
4FLYING METAL or DIRT can injure eyes.
• Welding, chipping, wire brushing, and grindingcause sparks and
flying metal. As welds cool,they can throw off slag.
• Wear approved safety glasses with sideshields even under your
welding helmet.
4BUILDUP OF GAS can injure or kill.
• Shut off shielding gas supply when not in use.
• Always ventilate confined spaces or useapproved air supplied
respirator.
4MAGNETIC FIELDS can affect ImplantedMedical Devices.
• Wearers of Pacemakers and other ImplantedMedical Devices
should keep away.
• Implanted Medical Device wearers should consult their
doctorand the device manufacturer before going near arc
welding, spotwelding, gouging, plasma arc cutting, or induction
heating operations.
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