Lincoln Electric IM872 LF-74 WIRE FEEDER - Manual (Page 30)

B-1 OPERATION B-1
LF-74
COLD FEED
POSITIVE OUTPUT
NEGATIVE OUTPUT
PROTECTIVE
GROUND
WARNING OR
CAUTION
DANGEROUS
VOLTAGE
SHOCK
HAZARD
WELDING
FUMES
EXPLOSION
GAS INPUT
WORK
CONNECTION
SAFETY PRECAUTIONS
Read this entire section of operating instructions
before operating the machine.
ELECTRIC SHOCK can kill.
• Unless using cold feed feature,
when feeding with the gun trigger,
the electrode and drive mechanism
are always electrically energized
and could remain energized several
seconds after welding ceases.
• Do not touch electrically live parts or electrodes
with your skin or wet clothing.
• Insulate yourself from the work and ground.
• Always wear dry insulating gloves.
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ONLY QUALIFIED PERSONS SHOULD INSTALL,
USE OR SERVICE THIS EQUIPMENT. READ AND
FOLLOW THE MANUFACTURER’S INSTRUC-
TIONS, EMPLOYER’S SAFETY PRACTICES AND
MATERIAL SAFETY DATA SHEETS (MSDS) FOR
CONSUMABLES.
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READ THIS WARNING, PROTECT
YOURSELF & OTHERS.
FUMES AND GASES can be
dangerous.
• Keep your head out of fumes.
• Use ventilation or exhaust at the arc, or both,to
keep fumes and gases from your
breathing zone and general area.
WELDING SPARKS can cause
fire or explosion.
• Do not weld near flammable materi-
al.
• Do not weld on containers which
have held flammable material.
ARC RAYS can burn.
• Wear eye, ear, and body protection.
GRAPHIC SYMBOLS THAT APPEAR ON
THIS MACHINE OR IN THIS MANUAL
COMMON WELDING ABBREVIATIONS
WFS
• Wire Feed Speed
CV
• Constant Voltage
GMAW (MIG)
• Gas Metal Arc Welding
FCAW (Innershield or Outershield)
• Flux Core Arc Welding