
· Do not weld, cut, or perform other such work on used
barrels, drums, tanks, or other containers that had
contained a flammable or toxic substance. The
techniques for removing flammable substances and
vapors, to make a used container safe for welding or
cutting, are quite complex and require special
education and training.
· Do not weld or cut in an area where the air may
contain flammable dust (such as grain dust), gas, or
liquid vapors (such as gasoline).
· Do not handle hot metal, such as the work piece or
electrode stubs, with bare hands.
· Have fire extinguishing equipment handy for
immediate use! A portable chemical fire extinguisher,
type ABC, is recommended.
· Wear ear plugs when welding overhead to prevent
spatter or slag from falling into ear.
· Make sure welding area has a good, solid, safe floor,
preferably concrete or masonry, not tiled, carpeted, or
made of any other flammable material.
· Protect flammable walls, ceilings, and floors with heat
resistant covers or shields.
· Check welding area to make sure it is free of sparks,
glowing metal or slag, and flames before leaving the
welding area.
FUME HAZARDS
FUMES, GASES, AND VAPORS CAN CAUSE
DISCOMFORT, ILLNESS, AND DEATH!
To reduce risk of discomfort, illness, or death, read,
understand, and follow the following safety instructions.
In addition, make certain that anyone else that uses
this welding equipment or is a bystander in the welding
area, understands and follows these safety instructions
as well.
· Do not weld in an area until it is checked for adequate
ventilation as described in ANSI standard #Z49.1. If
ventilation is not adequate to exchange all fumes and
gasses generated during the welding process with
fresh air, do not weld unless you (the welder) and all
bystanders are wearing air-supplied respirators.
· Do not heat metals coated with, or that contain,
materials that produce toxic fumes (such as galvanized
steel), unless the coating is removed. Make certain the
area is well ventilated, and the operator and all
bystanders are wearing air-supplied respirators.
· Do not weld, cut, or heat lead, zinc, cadmium,
mercury, beryllium, or similar metals without seeking
professional advice and inspection of the ventilation of
the welding area. These metals produce EXTREMELY
TOXIC fumes which can cause discomfort, illness, and
death.
· Do not weld or cut in areas that are near chlorinated
solvents. Vapors from chlorinated hydrocarbons, such
as trichloroethylene and perchloroethylene, can be
decomposed by the heat of an electric arc or its
ultraviolet radiation. These actions can cause
PHOSGENE, a HIGHLY TOXIC gas to form, along with
other lung and eye-irritating gasses. Do not weld or cut
where these solvent vapors can be drawn into the work
area or where the ultraviolet radiation can penetrate to
areas containing even very small amounts of these
vapors.
· Do not weld in a confined area unless it is being
ventilated or the operator (and anyone else in the area)
is wearing an air-supplied respirator.
· Do not weld in a confined area unless it is being
ventilated or the operator (and anyone else in the area)
is wearing an air-supplied respirator.
· Stop welding if momentary eye, nose, or throat
irritation develops as this indicates inadequate
ventilation. Stop work and take necessary steps to
improve ventilation in the welding area. Do not resume
welding if physical discomfort persists.
PROTECTION AGAINST MAGNETIC FIELD
The magnetic field can be a cause of trouble to
operators who have HEART MONITORS, PACE-
MAKERS, AUDITIVE APPARATUS, AND/OR
COCHLEAIRE IMPLANTS (HEARING AIDS). Do not
carry any credit card or magnetic card when using any
welding machine.