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• Wear protective clothing made from durable, flame-resistant
material (leather, heavy cotton, or wool) and foot protection.
WELDING 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 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 bypass them.
• Follow requirements in OSHA 1910.252 (a) (2) (iv) and NFPA
51Bfor hot work and have a fire watcher and extinguisher
nearby.
FLYING METALor 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.
BUILDUPOF GAS can injure or kill.
• Shut off shielding gas supply when not in use.
• Always ventilate confined spaces or useapproved air
supplied respirator.
MAGNETIC 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.
NOISE can damage hearing.
Noise from some processes or equipment candamage
hearing.
• Wear approved ear protection if noise level is high.
CYLINDERS can explode if damaged.
Shielding gas cylinders contain gas under highpressure. If
damaged, a cylinder can explode.
Sincegas cylinders are normally part of the weldingprocess,
be sure to treat them carefully.
• Protect compressed gas cylinders from excessive heat,
mechanical shocks, physical damage, slag, open flames,
sparks, and arcs.
• Install cylinders in an upright position by securing to a
stationarysupport or cylinder rack to prevent falling or tipping.
• Keep cylinders away from any welding or other electrical
circuits.
• Never drape a welding torch over a gas cylinder.
• Never allow a welding electrode to touch any cylinder.
• Never weld on a pressurized cylinder - explosion will result.
• Use only correct shielding gas cylinders, regulators, hoses,
and fittings designed for the specific application; maintain
them and associated parts in good condition.
• Turn face away from valve outlet when opening cylinder
valve.
• Keep protective cap in place over valve except when
cylinder is inuse or connected for use.
• Use the right equipment, correct procedures, and sufficient
number of persons to lift and move cylinders.
• Read and follow instructions on compressed gas
cylinders,associated equipment, and Compressed Gas
Association (CGA)publication P-1 listed in Safety Standards.
FIRE OR EXPLOSION hazard.
• Do not install or place unit on, over, or nearcombustible
surfaces.
• Do not install unit near flammables.
• Do not overload building wiring - be sure power supply
system is properly sized, rated, and protected to handle this
unit
FALLING UNIT can cause injury.
• Use lifting eye to lift unit only, NOT runninggear, gas
cylinders, or any other accessories.
• Use equipment of adequate capacity to lift andsupport unit.
• If using lift forks to move unit, be sure forks arelong enough
to extend beyond opposite side ofunit.
OVERUSE can cause OVERHEATING
• Allow cooling period; follow rated duty cycle.
• Reduce current or reduce duty cycle beforestarting to weld
again.
• Do not block or filter airflow to unit.
FLYING SPARKS can cause injury.
• Wear a face shield to protect eyes and face.
• Shape tungsten electrode only on grinder withproper
guards in a safe location wearing properface, hand, and
body protection.
