SECTION 1 − SAFETY PRECAUTIONS - READ BEFORE USING
spotom _nd_8/03
1-1. Symbol Usage
Means Warning! Watch Out! There are possible hazards with this procedure! The possible hazards are shown in the adjoining symbols.
YMarks a special safety message.
.Means “Note”; not safety related.
This group of symbols means Warning! Watch Out! possible ELECTRIC SHOCK, MOVING PARTS, and HOT PARTS hazards. Consult symbols and related instructions below for necessary actions to avoid the hazards.
1-2. Resistance Spot Welding Hazards
YThe 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 instructions to avoid the hazard. The safety information given below is only a summary of the more complete safety information found in the Safety Standards listed in Section
YOnly qualified persons should install, operate, maintain, and repair this unit.
YDuring operation, keep everybody, especially children, away.
SPOT WELDING can cause fire.
Sparks can fly off from the weld. The flying sparks, hot workpiece, and hot equipment can cause fires, burns, and explosions.
DProtect yourself and others from flying sparks and hot metal.
DDo not spot weld where flying sparks can strike flammable material.
DRemove all flammables within 35 ft (10.7 m) of the weld. If this is not possible, tightly cover them with approved covers.
DBe alert that welding sparks can easily go through small cracks and openings to adjacent areas.
DWatch for fire, and keep a fire extinguisher nearby.
DDo not spot weld on closed containers such as tanks or drums.
DDo not weld where the atmosphere may contain flammable dust, gas, or liquid vapors (such as gasoline).
DRemove any combustibles, such as a butane lighter or matches, from your person before doing any welding.
DAfter completion of work, inspect area to ensure it is free of sparks, glowing embers, and flames.
DDo not exceed the equipment rated capacity.
DUse only correct fuses or circuit breakers. Do not oversize or bypass them.
DProperly install and ground this equipment according to this manual and national, state, and local codes.
DCheck 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 − always
DWhen making input connections, attach the grounding conductor first −
DKeep cords dry, free of oil and grease, and protected from hot metal and sparks.
DFrequently inspect input power cord and ground conductor for dam- age or bare wiring − replace immediately if damaged − bare wiring can kill. Check ground conductor for continuity.
DTurn off all equipment when not in use.
DFor
DUse only
DWear a safety harness if working above floor level.
DKeep all panels, covers, and guards securely in place.
FLYING SPARKS can cause injury.
Very often sparks fly off from the joint area.
DWear approved face shield or safety goggles with side shields.
DWear protective garments such as
DProtect others in nearby areas by using approved
ELECTRIC SHOCK can kill.
Touching live electrical parts can cause fatal shocks or severe burns. The input power circuit and machine internal circuits are also live when power is on. Incorrectly installed or improperly grounded equipment is a hazard.
DDo not touch live electrical parts.
DWear dry,
DDisconnect input power before installing or servicing this equip- ment. Lockout/tagout input power according to OSHA 29 CFR 1910.147 (see Safety Standards).
HOT METAL can cause burns.
Wear gloves or allow cooling period before servicing tongs or tips.
D Always wear
DDo not touch workpiece, tips, or tongs with bare hands.
DAllow tongs and tips to cool before touching.
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