LN-7 and LN-7 GMA Wire Feeders
(2 and 4 Roll Models)
OPERATOR’S MANUAL
Safety Depends on You
Lincoln arc welding and cutting
equipment is designed and built
with safety in mind. However, your
overall safety can be increased by
proper installation ... and thought-
ful operation on your part. DO
NOT INSTALL, OPERATE OR
REPAIR THIS EQUIPMENT
WITHOUT READING THIS
MANUAL AND THE SAFETY
PRECAUTIONS CONTAINED
THROUGHOUT. And, most
importantly, think before you act
and be careful.
IM351-C
June, 2010
VOLTS
NEGATIVE
ELECTRODE
POLARITY
POSITIVE
THE LINCOLN ELECTRIC CO. CLEVELAND, OH U.S.A.
Do not touch live electrical parts or electrode with
skin or wet clothing
Insulate yourself from work and ground.
Always wear dry insulating gloves.
Do not use AC welder if your clothing, gloves or work
area is damp or if working on, under or inside
workplace.
Use the following equipment:
Semiautomatic DC constant voltage (wire) welder.
DC Manual (stick) welder
Ac welder with reduced voltage control.
Do not operate with panels removed
Disconnect input power before servicing.
ONLY QUALIFIED PERSONAL SHOULD INSTALL, USE OF SERVICE THIS
EQUIPMENT. READ AND FOLLOW THE MANUFACTURE’S INSTRUCTIONS,
EMPLOYER’S SAFETY PRACTICES AND MATERIAL SAFETY DATA SHEETS
(MSDS) FOR CONSUMABLES.
VM M16196
ELECTRIC SHOCK can kill
WARNING
READ THIS WARNING, PROTECT YOURSELF & OTHERS.
See American National Standard Z 49.1 "Safety in Welding and Cutting", published by the American Welding Society,
550 Le Jeune Rd., Miami, Florida 33126; OSHA Safety and Heath Standards, 29 CFR 1910 Available from U.S. Government
Printing Office, Washington, D.C. 20402. DO NOT REMOVE THIS WARNING
AVERTISEMENT: LA SOUDURE A L’ARC COMPORTE DES RISQUES DE
BLESSRES PUR L’OPERATEUR OULES PERSONNES DANIS LA ZONE DE
TRAVAIL. CONSULTER LA NOTICE TECHNIQUE AVANT UTILISATION.
FUMES AND GASES can be
dangerous to your health
Keep your head out of fumes.
Use enough ventilation or exhaust at the arc, or both,
to keep fumes and gases from your breathing wone and
general area.
WELDING SPARKS can cause
fire or explosion.
Do not weld near flammable material.
Do not weld on containers which have held flammable
material
ARC RAYS can injure eyes and
burn skin.
Weareye ear and body protection
LN-7 GMA CONTROL
WIRE SPEED
INCHES PER MINUTE
100
200
150
250
700
650
600
550
500
450
400
350
300
SERIAL NO.CODE NO.
LN-7
NEMA EW3
115V, 50/60 HZ AMPS
This machine and the accessories are covered by one or more of the
following patents: United states 3,806,695; 3.975,616; 4,246,463;
4,247,751; Australia 467,447; 499,502; 517,120; 525,541; Brazil 79,787; PI
7,803,421; PI 7,905,509; Canada 965,487; 1,041,181; 1,093,159; 1,119,674;
European Patent 8527 (France, West Germany, United Kingdom,
Netherlands, Italy, Sweden); France 73.01477; 75 34477; 78 14757l Italy
1,102,502; Mexico 147,019; S. Korea 19064; Sweden 7805112-5; United
Kingdom 1,529,726; 1,579,700; W. Germany 25 50 278; 28 23 293.
Other patents pending.
LN-7 GMA shown with optional
K417 digital meter kit and K418
GMA timer kit.
For machines with code numbers: 9100 and above
• Sales and Service through Subsidiaries and Distributors Worldwide •
Cleveland, Ohio 44117-1199 U.S.A. TEL: 216.481.8100 FAX: 216.486.1751 WEB SITE: www.lincolnelectric.com
• World's Leader in Welding and Cutting Products •
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