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RETURN TO MAIN INDEX
SVM132-A
May, 2002
LN-8 SEMIAUTOMATIC WIRE FEEDER
For use with code numbers: 9963, 9964
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 ac
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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 SPARKS can CYLINDER may explode cause fire or explosion. if damaged. 6.a. Remove fire hazards from the welding area. 7.a.Use only compressed gas cylinders If this is not possible, cover them to prevent containing the correct shielding gas for the the welding sparks from starting a fire. process used and properly operating Remember that welding sparks and hot regulators designed for the gas and materials from welding can easily go through small cracks pressure used. All hos
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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 instruc- tions et les précautions de sûreté specifiques qui parraissent 6. Eloigner les matériaux inflammables ou les recouvrir afin de dans ce manuel aussi bien que les précautions de sûreté prévenir tout risque d’incendie dû aux étincelles. générales su
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v v RETURN TO MAIN INDEX MASTER TABLE OF CONTENTS FOR ALL SECTIONS Page Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . i-iv Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Section A Technical Specifications - LN-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2 Mounting Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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SECTION A-1 SECTION A-1 INSTALLATION TABLE OF CONTENTS -INSTALLATION SECTION- Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Section A Technical Specifications - LN-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2 Mounting Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3 Power Sourc
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A-2 A-2 INSTALLATION TECHNICAL SPECIFICATIONS – LN-8 INPUT – VOLTAGE 115 VAC, 50/60 Hz @ 4.5 amps WIRE FEED SPEED 50 in. to 600 in. per minute (1.25 to 15.24 m/min) WIRE DIAMETERS ELECTRODE DIAMETER SOLID 0.030 in. through 3/32 in. (0.76 through 2.36 mm) CORED 0.062 in. through 0.120 in. (1.57 through 3.05 mm) TEMPERATURE RATING OPERATING -4˚F to 104˚F (-20˚C to 40˚C) STORAGE -31˚F to 185˚F (-35˚C to 85˚C) PHYSICAL DIMENSIONS WEIGHT WIRE TOTAL WEIGHT LENGTH WIDTH HEIGHT DRIVE UNIT ONLY LE
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A-3 A-3 INSTALLATION LN-8N AND LN-8NE MOUNTING LOCATION Use a constant voltage type power source. If the LN-8 The LN-8 can be operated as a free-standing unit, or it has been converted to weld with a constant current can be mounted to an undercarriage when portability power source, use the instructions for the LN-8S. is required. Refer to Accessories Section for avail- able under carriage, mounting platform, or wire reel 1. If using a multi-purpose power source, be sure it stands. is set for
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A-4 A-4 INSTALLATION FIGURE A.1 – POWER SOURCE SELECTION LN-8S AND LN-8SE (AND CONVERTED SWITCH LN-8N AND LN-8NE) 1. Use either a constant voltage or constant current POWER SOURCE type power source as required for the application. SELECTION SWITCH Ensure the power source is properly set for constant voltage or constant current welding, as appropriate, per the instructions in the power VARIABLE source operating manual. VOLTAGE PC BOARD 2. Set the LN-8 wire feeder for a constant voltage or c
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A-5 A-5 INSTALLATION POWER SOURCE CONNECTION DIAGRAMS Table A.2 – LN-8 Power Source Connection Diagrams Figure No. Power Source A.2 Connection of LN-8 to an Idealarc® R3S-400, 600 or 800 (with LVC) (Discontinued) A.3 Connection of LN-8 to an Idealarc R3S-400, 600 or 800 (without LVC) (Discontinued) A.4 Connection of LN-8 to a SAM Motor-Generator or Engine Driven Welder A.5 Connection of LN-8 to R3S-250 and R3S-325 A.6 Connection of LN-8 to DC-600 A.7 Connection of LN-8 to DC-250, 400 and CV/
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A-6 A-6 INSTALLATION FIGURE A.2 – CONNECTION OF LN-8 TO AN IDEALARC R3S-400, 600 OR 800 (WITH LVC) (DISCONTINUED) TURN OFF INPUT POWER WARNING TO THE WELDING POWER SOURCE USING THE DISCONNECT SWITCH BEFORE WORKING ELECTRIC ON THIS EQUIPMENT. SHOCK CAN KILL TO OPTIONAL R3S LINE VOLTAGE COMPENSATOR 75 76 77 N.A. TO LN-8 INPUT CABLE PLUG 21 24 31 32 A B N.D. C 4 GND LN-8 CONTROL CABLE 32 31 2 N.B. 21 NEGATIVE POSITIVE ELECTRODE CABLE TO WIRE FEED UNIT N.C. N.B. TO WORK POWER SOURCE TAPE UP B
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A-7 A-7 INSTALLATION FIGURE A.3 – CONNECTION OF LN-8 TO AN IDEALARC R3S-400, 600 OR 800 (WITHOUT LVC) (DISCONTINUED) TURN OFF INPUT POWER WARNING TO THE WELDING POWER SOURCE USING THE DISCONNECT SWITCH BEFORE WORKING ELECTRIC ON THIS EQUIPMENT. SHOCK CAN KILL N.E. 76 77 75 N.A. TO LN-8 INPUT CABLE PLUG 21 24 31 32 C B N.D. A 4 GND LN-8 CONTROL CABLE 32 31 2 N.B. 21 NEGATIVE POSITIVE ELECTRODE CABLE TO WIRE FEED UNIT N.C. N.B. TO WORK POWER SOURCE TAPE UP BOLTED CONNECTION THE ABOVE DIAGRA
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A-8 A-8 INSTALLATION FIGURE A.4 – CONNECTION OF LN-8 TO A SAM MOTOR-GENERATOR OR ENGINE DRIVEN WELDER TURN OFF INPUT POWER WARNING TO THE WELDING POWER SOURCE USING THE DISCONNECT SWITCH BEFORE WORKING ELECTRIC ON THIS EQUIPMENT. SHOCK CAN KILL REMOVE SAM PORTABLE FIELD CONTROL AND CONNECT LEADS B AND C FROM LN-8 CONTROL CABLE. DO NOT CONNECT LEAD A. LEAD MUST BE TAPED UP. TAPE UP BOLTED CONNECTION N.A. TO LN-8 INPUT 21 CABLE PLUG 67 CONTROL CABLE 1 21 2 2 31 31 ELECTRODE CABLE TO 32 32 WIRE
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A-9 A-9 INSTALLATION FIGURE A.5 – CONNECTION OF LN-8 TO R3S-250 AND R3S-325 TURN OFF INPUT POWER WARNING TO THE WELDING POWER SOURCE USING THE DISCONNECT SWITCH BEFORE WORKING ELECTRIC ON THIS EQUIPMENT. SHOCK CAN KILL TAPE UP BOLTED CONNECTION POWER SOURCE N.B. TO LN-8 INPUT CABLE PLUG CONTROL CABLE 21 21 4 4 31 31 32 32 2 GND 77 C N.C. 76 B 75 A NEGATIVE POSITIVE ELECTRODE CABLE TO LN-8 OR NA-3 AUTOMATIC SHUNT N.A. TO WORK THE ABOVE DIAGRAM SHOWS THE ELECTRODE CONNECTED FOR POSITIVE POLARIT
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A-10 A-10 INSTALLATION FIGURE A.6 – CONNECTION OF LN-8 TO DC-600 TURN OFF INPUT POWER WARNING TO THE WELDING POWER SOURCE USING THE DISCONNECT SWITCH BEFORE WORKING ELECTRIC ON THIS EQUIPMENT. SHOCK CAN KILL POWER SOURCE TO LN-8 INPUT 214727 31 32 7567 80 81 CABLE PLUG C N.E. B A 32 31 CONTROL 2 CABLE 4 21 GND N P S N.B. AND N.C. N.F. N.D. NEGATIVE POSITIVE ELECTRODE CABLE TO WIRE FEED UNIT N.A. TO WORK THE ABOVE DIAGRAM SHOWS THE ELECTRODE CONNECTED POSITIVE. TO CHANGE POLARITY, TURN OFF THE
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A-11 A-11 INSTALLATION FIGURE A.7 – CONNECTION OF LN-8 TO DC-250, 400 AND CV/CVI POWER SOURCES TURN OFF INPUT POWER WARNING TO THE WELDING POWER SOURCE USING THE DISCONNECT SWITCH BEFORE WORKING ELECTRIC ON THIS EQUIPMENT. SHOCK CAN KILL POWER SOURCE TO LN-8 INPUT 21 4 231 32 75 76 77 CABLE PLUG C B N.E. A 32 31 2 CONTROL CABLE 4 CV OUTPUT GND TERMINALS ON DC-250 21 NEGATIVE POSITIVE N.D. N.B. AND N.C. ELECTRODE CABLE TO WIRE FEED UNIT N.A. TO WORK THE ABOVE DIAGRAM SHOWS THE ELECTRODE CONNE
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A-12 A-12 INSTALLATION FIGURE A.8 – K318 DUAL PROCESS CONTACTOR KIT DC-400, CV-400 AND CVI-500 CONNECTION TO LN-8 FOR SAME POLARITY OPERATION TURN OFF INPUT POWER WARNING TO THE WELDING POWER SOURCE USING THE DISCONNECT SWITCH BEFORE WORKING ELECTRIC ON THIS EQUIPMENT. SHOCK CAN KILL N.B.B. N.B.B. 21A 21B DUAL PROCESS CONTACTOR WELDING LEAD STUD ON DC-400 BACK OF CONTACTOR KIT GND GND N.C. 81 4 231 32 75 76 77 21 A B 80 75 75 A A B 76 76 B 77 C 77 77 C 76 75 21 21 4 N.A.A. GND 4 4 2 4 4 31 2
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A-13 A-13 INSTALLATION FIGURE A.9 – K318 DUAL PROCESS CONTACTOR KIT DC-400, CV-400 AND CVI-500 CONNECTION TO LN-8 FOR OPPOSITE POLARITY OPERATION TURN OFF INPUT POWER WARNING TO THE WELDING POWER SOURCE USING THE DISCONNECT SWITCH BEFORE WORKING ELECTRIC ON THIS EQUIPMENT. SHOCK CAN KILL N.B.B. N.B.B. TO WORK N.A. 21A 21B DUAL PROCESS CONTACTOR WELDING LEAD STUD ON DC-400 BACK OF CONTACTOR KIT GND GND N.C. 81 21 4 231 32 75 76 77 A B 80 A 75 75 A B 76 76 B 77 C 77 77 C 76 75 21 21 4 N.A.A. GN
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A-14 A-14 INSTALLATION FIGURE A.10 – FOR POWER SOURCES OTHER THAN LINCOLN ELECTRIC TURN OFF INPUT POWER WARNING TO THE WELDING POWER SOURCE USING THE DISCONNECT SWITCH BEFORE WORKING ELECTRIC ON THIS EQUIPMENT. SHOCK CAN KILL POWER SOURCE POWER SOURCE INTERNALLY POWERED CONTACTOR EXTERNALLY POWERED CONTACTOR OUTPUT CONTACTOR COIL OUTPUT CONTACTOR COIL (115 VAC) ELECTRODE ELECTRODE FOR POWER TO OPERATE CONTACTOR WORK MAX. RATING OF LN-8 WORK MAX. RATING OR LN-8 #2 TO #4 CIRCUIT IS #2 TO #4 CIR
