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INCHES PER MINUTE
LN-7 GMA CONTROL
WIRE SPEED
400 450
350
500
300
550
250
200 600
650
150
100 700
SERIAL NO. CODE NO.
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.
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i i SAFETY WARNING CALIFORNIA PROPOSITION 65 WARNINGS Diesel engine exhaust and some of its constituents The engine exhaust from this product contains are known to the State of California to cause can- chemicals known to the State of California to cause cer, birth defects, and other reproductive harm. cancer, birth defects, or other reproductive harm. The Above For Diesel Engines The Above For Gasoline Engines ARC WELDING CAN BE HAZARDOUS. PROTECT YOURSELF AND OTHERS FROM POSSIBLE SERIOUS INJURY
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ii ii SAFETY ELECTRIC SHOCK can ARC RAYS can burn. 4.a. Use a shield with the proper filter and cover kill. plates to protect your eyes from sparks and 3.a. The electrode and work (or ground) circuits the rays of the arc when welding or observing are electrically “hot” when the welder is on. open arc welding. Headshield and filter lens Do not touch these “hot” parts with your bare should conform to ANSI Z87. I standards. skin or wet clothing. Wear dry, hole-free gloves to insulate hands. 4.b. Us
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iii iii SAFETY WELDING and CUTTING CYLINDER may explode SPARKS can if damaged. cause fire or explosion. 7.a. Use only compressed gas cylinders 6.a. Remove fire hazards from the welding area. containing the correct shielding gas for the If this is not possible, cover them to prevent process used and properly operating the welding sparks from starting a fire. regulators designed for the gas and Remember that welding sparks and hot pressure used. All hoses, fittings, etc. should be suitable for mat
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iv iv SAFETY 5. Toujours porter des lunettes de sécurité dans la zone de PRÉCAUTIONS DE SÛRETÉ soudage. Utiliser des lunettes avec écrans lateraux dans les zones où l’on pique le laitier. Pour votre propre protection lire et observer toutes les instructions et les précautions de sûreté specifiques qui parraissent dans ce 6. Eloigner les matériaux inflammables ou les recouvrir afin de manuel aussi bien que les précautions de sûreté générales suiv- prévenir tout risque d’incendie dû aux étincelles
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v v for selecting a QUALITY product by Lincoln Electric. We want you to take pride in operating this Lincoln Electric Company product Thank You ••• as much pride as we have in bringing this product to you! CUSTOMER ASSISTANCE POLICY The business of The Lincoln Electric Company is manufacturing and selling high quality welding equipment, consumables, and cutting equip- ment. Our challenge is to meet the needs of our customers and to exceed their expectations. On occasion, purchasers may ask Linco
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vi TABLE OF CONTENTS Page Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . i-iv Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Section A Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1 Mounting Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2 Machine Groundi
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A-1 A-1 INSTALLATION TECHNICAL SPECIFICATIONS – LN-7 and LN-7 GMA INPUT VOLTAGE Supplied by power source: 115 VAC, 50/60 Hz, 2.5 Amps WIRE FEED SPEED LN-7 GMA 75 to 700 in. per minute (1.90 to 17.8 m/min) LN-7 50 to 500 in. per minute (1.27 to 12.7 m/min) WIRE DIAMETERS 0.023 in. through 1/16 in. solid electrode (0.6 through 1.6 mm) LN-7 GMA 0.045 in. through 5/64 in. cored electrode (1.2 through 2.0 mm) 0.023 in. through 3/32 in. solid electrode (0.6 through 2.4 mm) LN-7 0.045 in. through 7/64
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A-2 A-2 INSTALLATION MOUNTING LOCATION WARNING The LN-7 and LN-7 GMA wire feeder can be mounted directly on top of the power source providing that it is Turn input power off before connecting the LN-7 secure and level. It can also be mounted to an GMA wire feeder. undercarriage when portability is required. ------------------------------------------------------------------------ For connecting an LN-7 GMA to a specific Lincoln power source follow steps 1 through 6, and refer to the MACHINE GR
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A-3 A-3 INSTALLATION 1. For K291 and K404 cables, connect the end of the 4. Referring to Figure A.1, route the end of the control cable with the lugged leads to the power electrode cable through the large hole in the back source. If lead #21 is extended to work, do not panel of the LN-7 case. Connect the electrode connect leads to terminal #21 on terminal strip. cable to the brass conductor block on the front of For K584, K594 or K480 cables connect the 14 the gearbox using the 1/2-13 x .75 b
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A-4 A-4 INSTALLATION 5. Connect the input control cable polarized clamp. Remove the screws holding the clamp to Amphenol plug into the mating 6-pin receptacle the base of the wire reel mounting assembly, put on the rear of the control section. the input cable assembly under the clamp and reinstall the screws. 6. Referring to Figure A.2, install the input cable under the wire reel mounting stand strain relief FIGURE A.2 – STRAIN RELIEF CLAMP. CONTROL CABLE STRAIN RELIEF CLAMP ELECTRODE CABLE L
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A-5 A-5 INSTALLATION FIGURE A.3 – LN-7 & LN-7 GMA TO DC-400, DC-250 AND CV/CVI POWER SOURCES WITH TERMINAL STRIP - CONNECTION DIAGRAM. TURN INPUT POWER OFF WARNING BEFORE CONNECTING THE LN-7 GMA WIRE FEEDER. ELECTRIC SHOCK CAN KILL 77 + – CLEVELAND, OHIO U.S.A LN-7 & LN-7 GMA
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A-6 A-6 INSTALLATION FIGURE A.4 – LN-7 & LN-7 GMA TO PULSED POWER 500 - CONNECTION DIAGRAM. TURN INPUT POWER OFF WARNING BEFORE CONNECTING THE LN-7 GMA WIRE FEEDER. ELECTRIC SHOCK CAN KILL – + CLEVELAND, OHIO U.S.A LN-7 & LN-7 GMA
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A-7 A-7 INSTALLATION FIGURE A.5 – LN-7 & LN-7 GMA TO CV/CVI POWER SOURCES WITH 14 PIN AMPHENOL CONNECTOR - CONNECTION DIAGRAM. TURN INPUT POWER OFF WARNING BEFORE CONNECTING THE LN-7 GMA WIRE FEEDER. ELECTRIC SHOCK CAN KILL + – CLEVELAND, OHIO U.S.A LN-7 & LN-7 GMA
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A-8 A-8 INSTALLATION FIGURE A.6 – LN-7 & LN-7 GMA TO CV/CVI POWER SOURCES WITH TWIST-MATE CONNECTOR AND 14 PIN AMPHENOL/REMOTE CONTROL - CONNECTION DIAGRAM. TURN OFF INPUT POWER WARNING TO THE WELDING POWER SOURCE USING THE DISCONNECT SWITCH AT THE FUSE BOX BEFORE CONNECTING THE WIRE FEEDER. ELECTRIC ONLY QUALIFIED PERSONS SHOCK SHOULD INSTALL, USE, OR CAN KILL SERVICE THIS MACHINE. + – CLEVELAND, OHIO U.S.A LN-7 & LN-7 GMA
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A-9 A-9 INSTALLATION FIGURE A.7 – LN-7 & LN-7 GMA TO CV/CVI POWER SOURCE (K867/K775) - CONNECTION DIAGRAM. TURN INPUT POWER OFF WARNING BEFORE CONNECTING THE LN-7 GMA WIRE FEEDER. ELECTRIC SHOCK CAN KILL + – CLEVELAND, OHIO U.S.A LN-7 & LN-7 GMA
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A-10 A-10 INSTALLATION FIGURE A.8 – LN-7 & LN-7 GMA TO R3S-250 OR R3S-325 - CONNECTION DIAGRAM. TURN INPUT POWER OFF WARNING BEFORE CONNECTING THE LN-7 GMA WIRE FEEDER. ELECTRIC SHOCK CAN KILL – + CLEVELAND, OHIO U.S.A LN-7 & LN-7 GMA
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A-11 A-11 INSTALLATION FIGURE A.9 – LN-7 & LN-7 GMA TO SAM MOTOR GENERATOR OR ENGINE WELDER - CONNECTION DIAGRAM. TURN INPUT POWER OFF WARNING BEFORE CONNECTING THE LN-7 GMA WIRE FEEDER. ELECTRIC SHOCK CAN KILL CLEVELAND, OHIO U.S.A LN-7 & LN-7 GMA
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A-12 A-12 INSTALLATION FIGURE A.10 – LN-7 & LN-7 GMA TO DC-600 - CONNECTION DIAGRAM. TURN INPUT POWER OFF WARNING BEFORE CONNECTING THE LN-7 GMA WIRE FEEDER. ELECTRIC SHOCK CAN KILL + – CLEVELAND, OHIO U.S.A LN-7 & LN-7 GMA
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A-13 A-13 INSTALLATION FIGURE A.11 – LN-7 & LN-7 GMA TO R3S-400, 600, OR 800 - CONNECTION DIAGRAM. TURN INPUT POWER OFF WARNING BEFORE CONNECTING THE LN-7 GMA WIRE FEEDER. ELECTRIC SHOCK CAN KILL CLEVELAND, OHIO U.S.A LN-7 & LN-7 GMA
