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� Insulate work clamp when not connected to workpiece to prevent
contact with any metal object.
� Do not connect more than one electrode or work cable to any sin-
gle weld output terminal. Disconnect cable for process not in use.
SIGNIFICANT DC VOLTAGE exists in inverter power sources
AFTER removal of input power.
� Turn off unit, disconnect input power, and discharge input capaci-
tors according to instructions in Manual before touching any parts.
HOT PARTS can burn.
� Do not touch hot parts bare handed.
� Allow cooling period before working on equipment.
� To handle hot parts, use proper tools and/or wear
heavy, insulated welding gloves and clothing to
prevent burns.
FUMES AND GASES can be
hazardous.
Welding and cutting produces fumes and gases.
Breathing these fumes and gases can be hazard-
ous to your health.
� Keep your head out of the fumes. Do not breathe the fumes.
� Ventilate the work area and/or use local forced ventilation at the
arc to remove welding fumes and gases. The recommended way
to determine adequate ventilation is to sample for the composition
and quantity of fumes and gases to which personnel are exposed.
� If ventilation is poor, wear an approved air-supplied respirator.
� Read and understand the Safety Data Sheets (SDSs) and the
manufacturer's instructions for adhesives, coatings, cleaners, con-
sumables, coolants, degreasers, fluxes, and metals.
� Work in a confined space only if it is well ventilated, or while wear-
ing an air-supplied respirator. Always have a trained watchperson
nearby. Welding and cutting fumes and gases can displace air and
lower the oxygen level causing injury or death. Be sure the breath-
ing air is safe.
� Do not weld or cut in locations near degreasing, cleaning, or
spraying operations. The heat and rays of the arc can react with
vapors to form highly toxic and irritating gases.
� Do not weld or cut on coated metals, such as galvanized, lead, or
cadmium plated steel, unless the coating is removed from the weld
area, the area is well ventilated, and while wearing an air-supplied
respirator. The coatings and any metals containing these elements
can give off toxic fumes if welded.
ARC RAYS can burn eyes and skin.
Arc rays from welding and cutting processes pro-
duce intense visible and invisible (ultraviolet and
infrared) rays that can burn eyes and skin. Sparks
fly off from the weld.
� Wear an approved welding helmet fitted with a proper shade of fil-
ter lenses to protect your face and eyes from arc rays and sparks
when welding, cutting, or watching (see ANSI Z49.1 and Z87.1
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 body protection made from durable, flame-resistant material
(leather, heavy cotton, wool). Body protection includes oil-free
clothing such as leather gloves, heavy shirt, cuffless trousers, high
shoes, and a cap.
WELDING AND CUTTING can cause
fire or explosion.
Welding or cutting on closed containers, such as
tanks, drums, or pipes, can cause them to blow up.
Sparks can fly off from the welding or cutting arc.
The flying sparks, hot workpiece, and hot equipment can cause fires
and burns. Accidental contact of electrode to metal objects can cause
sparks, explosion, overheating, or fire. Check and be sure the area is
safe before doing any welding or cutting.
� Remove all flammables within 35 ft (10.7 m) of the welding or cut-
ting arc. If this is not possible, tightly cover them with approved
covers.
� Do not weld or cut 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 and
cutting can easily go through small cracks and openings to adja-
cent areas.
� Watch for fire, and keep a fire extinguisher nearby.
� Be aware that welding or cutting on a ceiling, floor, bulkhead, or
partition can cause fire on the hidden side.
� Do not cut or weld on tire rims or wheels. Tires can explode if
heated. Repaired rims and wheels can fail. See OSHA 29 CFR
1910.177 listed in Safety Standards.
� Do not weld or cut on containers that have held combustibles, or
on closed containers such as tanks, drums, or pipes unless they
are properly prepared according to AWS F4.1 and AWS A6.0 (see
Safety Standards).
� Do not weld or cut where the atmosphere can contain flammable
dust, gas, or liquid vapors (such as gasoline).
� Connect work cable to the work as close to the welding or cutting
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 con-
tact tip when not in use.
� Wear body protection made from durable, flame-resistant material
(leather, heavy cotton, wool). Body protection includes oil-free
clothing 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 or cutting.
� 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 51B
for hot work and have a fire watcher and extinguisher nearby.
� Read and understand the Safety Data Sheets (SDSs) and the
manufacturer's instructions for adhesives, coatings, cleaners, con-
sumables, coolants, degreasers, fluxes, and metals.
FLYING METAL OR DIRT can injure
eyes.
� Welding, cutting, chipping, wire brushing, and
grinding cause sparks and flying metal. As welds
cool, they can throw off slag.
� Wear approved safety glasses with side shields even under your
welding helmet.
BUILDUP OF GAS can injure or kill.
� Shut off compressed gas supply when not in use.
� Always ventilate confined spaces or use approved
air-supplied respirator.
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