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Section I
Safety Precautions
A.
Arc Welding
Arc Welding can be hazardous.
Protect
yourself and others from possible serious
injury or death. Keep children away.
Pacemaker wearers keep away until
consulting your doctor.
In welding, as in most jobs, exposure to certain hazards
occurs. Welding is safe when precautions are taken.
The safety information given below is only a summary
of the more complete safety information that will be
found in the Safety Standards listed at the end of this
section. Read and follow all Safety Standards.
Have all installation, operation, maintenance and repair
work performed only by qualified people.
B.
Electric Shock
Touching live electrical parts can cause fatal shocks or
severe burns. The electrode and work circuit is
electrically live whenever the output is on. The input
power circuit and machine internal circuits are also live
when power is on. When using mechanized wire feed,
the wire, wire reel, drive roll housing and all metal parts
touching the welding wire are electrically live.
Incorrectly installed or improperly grounded equipment
is a hazard.
1.
Do not touch live electrical parts.
2.
Wear dry, hole-free insulating gloves and
appropriate body protection.
3.
Disconnect input power before installing or
servicing this equipment. Lockout/tagout input
power according to OSHA 29 CFR 1910.147
(see Safety Standards).
4.
Properly install and ground this equipment
according to the operation manual and
national, state and local codes.
5.
Always verify the supply ground-check and be
sure that input power cord ground wire is
properly connected to ground terminal in
disconnect box or that cord plug is connected
to a properly grounded receptacle outlet.
6.
When making input connections attach proper
grounding conductor first - double-check
connections
.
7.
Frequently inspect input power cord for
damage or bare wiring. Replace cord
immediately if damaged - bare wiring can kill.
8.
Turn off all equipment when not in use.
9.
If earth grounding of the part is required,
ground it directly with a separate cable - do
not use work clamp or work cable.
10.
Do not touch electrode if you are in contact
with the work, ground, or another electrode
from a different machine.
11.
Use only well-maintained equipment. Repair
or replace damaged parts at once. Maintain
unit according to manual.
12.
Wear a safety harness if working above floor
level.
13.
Keep all panels and covers securely in place.
14.
Clamp work cable with good metal-to-metal
contact to part or worktable as near the weld as
practical.
C.
Arc Rays
Arc rays can burn eyes and skin; noise can damage
hearing; flying slag or sparks can injure eyes.
Arc rays from the welding process produce intense
visible and invisible (ultraviolet and infrared) rays that
can burn eyes and skin. Noise from some processes can
damage hearing. Chipping, grinding and weld cooling
throw off pieces of metal or slag.
1.
Use approved ear plugs or ear muffs if noise
level is high.
2.
Use a welding helmet fitted with a proper
shade of filter to protect your face and eyes
when welding or watching.
3.
Wear approved safety glasses with side
shields.
4.
Use protective screens or barriers to protect
others from flash and glare; warn others not to
watch the arc.
5.
Wear protective clothing made from durable,
flame-resistant material (wool and leather)
and
foot protection where necessary.
D.
Fumes and Gases
