
OM-266040 Page 1
SECTION 1 – SAFETY PRECAUTIONS – READ BEFORE USING
Protect yourself and others from injury—read, follow, and save these important safety precautions and operating instructions.
1-1. Symbol Usage
DANGER! – Indicates a hazardous situation which, if not
avoided, will result in death or serious injury. The possible
hazards are shown in the adjoining symbols or explained
in the text.
Indicates a hazardous situation which, if not avoided,
could result in death or serious injury. The possible haz-
ards are shown in the adjoining symbols or explained in
the text.
NOTICE – Indicates statements not related to personal injury.
F
Indicates special instructions.
This group of symbols means Warning! Watch Out! ELECTRIC
SHOCK, MOVING PARTS, and HOT PARTS hazards. Consult
symbols and related instructions below for necessary actions to
avoid these hazards.
1-2. Arc Welding Hazards
The symbols shown below are used throughout this manual
to call attention to and identify possible hazards. When you
see the symbol, watch out, and follow the related instruc-
tions to avoid the hazard. The safety information given be-
low is only a summary of the more complete safety
information found in the Principal Safety Standards. Read
and follow all Safety Standards.
Only qualified persons should install, operate, maintain,
and repair this equipment. A qualified person is defined as
one who, by possession of a recognized degree, certificate,
or professional standing, or who by extensive knowledge,
training and experience, has successfully demonstrated the
ability to solve or resolve problems relating to the subject
matter, the work, or the project and has received safety
training to recognize and avoid the hazards involved.
During operation, keep everybody, especially children,
away.
ELECTRIC SHOCK can kill.
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 cir-
cuits are also live when power is on. In semiautomatic or automatic
wire welding, 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.
lDo not touch live electrical parts.
lWear dry, hole-free insulating gloves and body protection.
lInsulate yourself from work and ground using dry insulating mats
or covers big enough to prevent any physical contact with the work
or ground.
lDo not use AC weld output in damp, wet, or confined spaces, or if
there is a danger of falling.
lUse AC output ONLY if required for the welding process.
lIf AC output is required, use remote output control if present on
unit.
lAdditional safety precautions are required when any of the follow-
ing electrically hazardous conditions are present: in damp loca-
tions or while wearing wet clothing; on metal structures such as
floors, gratings, or scaffolds; when in cramped positions such as
sitting, kneeling, or lying; or when there is a high risk of unavoid-
able or accidental contact with the workpiece or ground. For these
conditions, use the following equipment in order presented: 1) a
semiautomatic DC constant voltage (wire) welder, 2) a DC manual
(stick) welder, or 3) an AC welder with reduced open-circuit volt-
age. In most situations, use of a DC, constant voltage wire welder
is recommended. And, do not work alone!
lDo not connect to any electrical distribution system normally sup-
plied by utility power unless a proper transfer switch and ground-
ing procedure are employed.
lDisconnect input power or stop engine before installing or servic-
ing this equipment. Lockout/tagout input power according to
OSHA 29 CFR 1910.147 (see Safety Standards).
lProperly install, ground, and operate this equipment according to
its Owner’s Manual and national, state, and local codes.
lAlways 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.
lWhen making input connections, attach proper grounding conduc-
tor first—double-check connections.
lKeep cords dry, free of oil and grease, and protected from hot met-
al and sparks.
lFrequently inspect input power cord and ground conductor for
damage or bare wiring —replace immediately if damaged— bare
wiring can kill.
lTurn off all equipment when not in use.
lDo not use worn, damaged, undersized, or repaired cables.
lDo not drape cables over your body.
lIf earth grounding of the workpiece is required, ground it directly
with a separate cable.
lDo not touch electrode if you are in contact with the work, ground,
or another electrode from a different machine.
lUse only well-maintained equipment. Repair or replace damaged
parts at once. Maintain unit according to manual.
lDo not touch electrode holders connected to two welding ma-
chines at the same time since double open-circuit voltage will be
present.
lWear a safety harness if working above floor level.
lKeep all panels and covers securely in place.
lClamp work cable with good metal-to-metal contact to workpiece
or worktable as near the weld as practical.
lInsulate work clamp when not connected to workpiece to prevent
contact with any metal object.
lDo not connect more than one electrode or work cable to any sin-
gle weld output terminal. Disconnect cable for process not in use.
lUse GFCI protection when operating auxiliary equipment. Test
GFCI receptacles at high speed.
HOT PARTS can burn.
lDo not touch hot parts bare handed.
lAllow cooling period before working on equipment.
lTo handle hot parts, use proper tools and/or wear
heavy, insulated welding gloves and clothing to
prevent burns.