Lincoln Electric LN-7 User's Manual
Contents
1. DC 655 see publication E5 46 DC 1000 see publication E5 50 TOTAL C U S T O M E R A S S I S T A N C E P O L I C Y The business of The Lincoln Electric Company is manufacturing and selling high quality welding equipment consumables and cutting equipment Our challenge is to meet the needs of our customers and to exceed their expectations On occa sion purchasers may ask Lincoln Electric for advice or information about their use of our products We respond to our customers based on the best information in our possession at that time Lincoln Electric is not in a position to warrant or guar antee such advice and assumes no liability with respect to such information or advice We expressly disclaim any warranty of any kind including any warranty of fitness for any customer s particular purpose with respect to such information or advice As a matter of practical consideration we also cannot assume any responsibility for updating or correcting any such information or advice once it has been given nor does the provision of information or advice create expand or alter any warranty with respect to the sale of our products Lincoln Electric is a responsive manufacturer but the selection and use of specific products sold by Lincoln Electric is solely within the control of and remains the sole responsibility of the customer Many variables beyond the control of Lincoln Electric affect the results obtained in applying these types of fabrication meth2. switch For LN 7 GMA only Order K418 Burnback Kit Provides adjustable delay of power source output shut off to prevent electrode sticking in crater when using high wire feed speeds Includes a cold inch switch Order K419 Magnetic Flux Screen Separator For submerged arc welding Removes foreign magnetic particles from reused flux Order K58 Flux Screen For submerged arc welding Removes large particles from reused flux Includes air driven vibrator Order K310 Continuous Flux Feeding Tank Assembly For submerged arc welding Includes air filter pressure regula tor gauge tank 18 ft 5 4m flux hose funnel and lift bail assembly to mount wire feeder Order K320 Undercarriage Includes mounting frame front casters rear wheels and handle for hand towing For use with Wire Reel Stand Order K163 Remote Output Control Kit Consists of a control box with four conductor cable and 6 pin MS type connector Order K857 for 25 ft cable K857 1 for 100 ft cable GENERAL OPTIONS CONT Remote Control Adapter Y connection adapter for connect ing Lincoln 6 pin plug K857 remote output control kit and 14 pin input cable assemblies to power sources with a 14 pin receptacle Order K864 LN 7 WIRE FEEDER 2 Roll K521 LN 7 GMA 2 Roll with gas solenoid valve K440 2 LN 7 GMA 4 Roll with gas solenoid valve K567 2 LN 7 GMA 2 Roll Ready Pak Wire Feeder Package K1801 1 REQUIRED OPTIONS Magnum Gas Shielded
3. wires LN 7 GMA model only Completely enclosed case protects the heavy duty wire drive mechanism from damage but allows easy access to drive rolls Control circuit features cold electrode when the gun trigger is released for an added measure of safety Low voltage 24 volts gun trigger circuit Dynamic braking system stops wire feed motor quickly to minimize crater sticking problems Three year warranty on parts and labor Recommended Power Source Options SEMIAUTOMATIC WIRE FEEDERS 115 VAC Gun and Cable Assembly Drive Roll Kit Control Cable Weld Power Cable K521 LN 7 Wire Feeder 2 Roll K440 2 LN 7 GMA 2 Roll with gas solenoid valve K567 2 LN 7 GMA 4 Roll with gas solenoid valve K1801 1 LN 7 GMA 2 Roll Ready Pak Wire Feeder Universal Wire Reel Stand Insulated Lift Bail Caster Kit Swivel Platform Spindle Adapter Readi Reel Adapter Coil Adapter Plastic Wire Cover Digital Voltmeter Water Solenoid Kit Gas Solenoid Assembly Gas Guard Regulator GMA Timer Kit Burnback Kit Magnetic Flux Screen Separator Flux Screen Continuous Flux Feeding Tank Assembly Undercarriage Remote Output Control Kit Remote Control Adapter CV 250 CV 300 CV400 I CV 400 CV500 I CV 655 V350 PRO DC 400 DC 600 DC 655 DC 1000 Wire Feed Wire Size Dimensions Net Product Product Input Rated Output Speed Range Range H x W x D Weight Name Number Power Current Duty Cycle i
4. 5m cable for 1 16 1 6mm electrode size Order K112 Magnum Submerged Arc Gun Rated 600 amps 15 ft 4 5m cable for 5 64 2 0mm electrode size Order K113 1 Magnum Submerged Arc Gun Rated 600 amps 15 ft 4 5m cable for 3 32 2 4mm electrode size Order K113 2 Flux Cone Fits K112 and K113 submerged arc guns for welding without the Continuous Flux Feed Tank Assembly Order K119 REQUIRED OPTIONS Magnum 400 shown K126 Innershield Gun shown LN 7 and LN 7 GMA www lincolnelectric com 6 RECOMMENDED OPTIONS GENERAL OPTIONS Universal Wire Reel Stand For use with Lincoln 10 60 lb 4 5 27 2 kg wire packages that use a 2 51mm spindle Hole in stand fits over lift bail Order K1524 1 Insulated Lift Bail Allows the entire wire feeder to be hung from a crane or hook Use with K1524 1 Order K1555 1 Caster Kit Light Duty Mounts to the K1524 1 wire reel stand Allows for easy movement of wire feeder Order K1556 1 Swivel Platform Mounts to the lift bail on the power source and bottom of the K1524 1 Wire feeder may be lift ed off if needed Compatible with Light Duty Caster Kit Includes lazy susan parts tray Order K1557 1 Spindle Adapter for Readi Reels and Spools 2 O D spindle for mounting Readi Reels and 2 51mm I D spools up to 60 lb 27 2 kg capacity to custom installations Order K162 1 14 lb Innershield Coil Adapter Permits 14 lb 6 kg Inn
5. A 60 duty cycle 35 ft K1842 60 Lug to Lug 3 0 600A 60 duty cycle 60 ft K1842 110 Lug to Lug 4 0 600A 60 duty cycle 110 ft LN 7 and LN 7 GMA www lincolnelectric com 5 RECOMMENDED OPTIONS DRIVE ROLL AND GUIDE TUBE KITS 4 5 6 WELD POWER CABLES CONTROL CABLES Steel Wire Sizes 2 Roll 4 Roll Solid Wire 023 025 0 6 0 9 mm KP653 025S KP655 025S 030 8 mm KP653 030S KP655 030S 035 040 0 9 1 0 mm KP653 035S KP655 035S 045 052 1 2 1 4 mm KP653 052S KP655 052S Cored Wire 035 0 9 mm KP653 035C KP655 035C 045 052 1 2 1 4 mm KP653 052C KP655 052C 7 64 120 2 8 3 0 mm KP653 120C KP655 120C Solid or Cored Wire 1 16 1 6mm KP653 1 16 KP655 1 16 068 3 32 1 7 2 4 mm KP653 3 32 1 KP655 3 32 Hardfacing 7 64 2 8 mm KP653 7 64H Aluminum Wire 035 0 9mm KP654 035A KP656 035A 3 64 1 2mm KP654 3 64A KP656 3 64A 1 16 1 6mm KP654 1 16A KP656 1 16A Clutched Aluminum Wire 035 0 9mm KP1682 035A 3 64 1 2mm KP1682 3 64A 1 16 1 6mm KP1682 1 16A 1 0 mm KP1682 1 0A 1 For LN 7 only Magnum Gas Shielded Gun and Cable Assemblies Available 200 550 amps air cooled gas shielded welding guns See publication E12 10 Magnum Self Shielded Gun and Cable Assemblies Available 250 600 amps See publication E12 110 Magnum Submerged Arc Gun Rated 500 amps 15 ft 4
6. Description Output Input MIG Flux Cored Submerged Arc 1 LN 7 and LN 7 GMA Semiautomatic Constant Speed Wire Feeders The LN 7 and LN 7 GMA are semiautomatic constant speed wire feeders that can be used with a variety of Lincoln engine drives DC or CV power sources in a shop or field environment Both models and a Ready Pak package feature Lincoln s unique drive roll design which provides positive feeding quick reloading and durability for long life Controlled wire feed speed during starting provides clean positive starts and minimizes stubbing skipping and spatter For dependable operation and precise wire feeding in a rugged package choose the LN 7 or LN 7 GMA Publication E8 10 11 03 www lincolnelectric com Processes Advantage Lincoln Required Options Order TECHNICAL SPECIFICATIONS Recommended General Options The LN 7 feeds up to 3 32 2 4mm solid and 7 64 2 8mm flux cored wires from 50 500 inches per minute 1 3 12 7m min wire feed speed The LN 7 GMA feeds up to 1 16 1 6mm solid and 5 64 2 0mm flux cored wires from 75 700 inches per minute 1 9 17 8 m min wire feed speed Unique drive roll design provides positive feeding and quick reloading by simply starting wire into guide tube The drive rolls and guide tubes are designed for long life and precise wire feeding Four roll wire drive system available for additional wire feed ing force and easier feeding of soft
7. Gun and Cable Assemblies see publication E12 10 Magnum Self Shielded Gun and Cable Assemblies see publication E12 110 Submerged Arc Gun and Cable Assemblies see page 5 Drive Roll and Guide Tube Kits see page 5 Control Cable see page 5 Weld Power Cable see page 5 RECOMMENDED GENERAL OPTIONS Universal Wire Reel Stand K1524 1 Insulated Lift Bail K1555 1 Caster Kit Light Duty K1556 1 Swivel Platform K1557 1 Spindle Adapter for Readi Reels and Spools K162 1 14 lb Innershield Coil Adapter K435 8 O D Spool Adapter K468 22 30 lb Readi Reel Adapter K363P 50 60 lb Readi Reel Adapter K438 50 60 lb Coil Adapter K1504 1 Plastic Wire Cover for up to 60 lb wire packages K1634 2 Digital Voltmeter K417 Water Solenoid Kit K527 Gas Solenoid Assembly K494 Gas Guard Regulator K659 1 GMA Timer Kit K418 Burnback Kit K419 Magnetic Flux Screen Separator K58 Flux Screen K310 Continuous Flux Feeding Tank Assembly K320 Undercarriage K163 Remote Output Control Kit for 25 ft cable K857 for 100 ft cable K857 1 Remote Control Adapter K864 RECOMMENDED POWER SOURCE OPTIONS CV 250 see publication E4 10 CV 300 see publication E4 20 CV400 I see publication E4 20 1 CV 400 see publication E4 30 CV500 I see publication E4 30 1 CV 655 see publication E4 40 V350 PRO see publication E5 91 DC 400 see publication E5 20 DC 600 see publication E5 40
8. eld Power Cables K1842 10 Lug to Lug 3 0 600A 60 Duty Cycle 10 ft K1842 35 Lug to Lug 3 0 600A 60 Duty Cycle 35 ft K1842 60 Lug to Lug 3 0 600A 60 Duty Cycle 60 ft K1842 110 Lug to Lug 3 0 600A 60 Duty Cycle 110 ft Weld Power Cables K1842 10 Lug to Lug 3 0 600A 60 Duty Cycle 10 ft K1842 35 Lug to Lug 3 0 600A 60 Duty Cycle 35 ft K1842 60 Lug to Lug 3 0 600A 60 Duty Cycle 60 ft K1842 110 Lug to Lug 3 0 600A 60 Duty Cycle 110 ft LN 7 and LN 7 GMA www lincolnelectric com 4 A CLOSER LOOK REMOTE OUTPUT CONTROL SELECTION GUIDE Ranger 250 Ranger 250 LPG Ranger 305G Ranger 305D Commander 300 Vantage 500 CV 250 CV 300 CV 400 CV 655 V350 PRO DC 400 DC 655 DC 600 6 Pin 6 Pin 14 Pin 6 Pin 14 Pin 14 Pin K864 Adapter K857 K857 Control Cable 14 Pin Control Cable 14 Pin Connections are for current equipment design Subject to change without notice Cable Type Description Wire Feeder Control Cable K1818 10 Male 9 pin to female 14 pin Wire Feeder Control Cable Extensions K1797 25 25 ft Male 14 pin to female 14 pin K1797 50 50 ft Adapter Cable for Control Cable to Terminal Strip Power Sources 14 pin control cable to Terminal K1798 Strip Order No Description K1840 10 Twist Mate to Lug 1 0 350A 60 duty cycle 10 ft K1842 10 Lug to Lug 3 0 600A 60 duty cycle 10 ft K1842 35 Lug to Lug 3 0 600
9. ershield electrode coils to be mounted on 2 51 mm O D spindles Order K435 8 O D Spool Adapter Permits 8 200mm O D spools to be mounted on 2 51mm O D spindles Order K468 GENERAL OPTIONS CONT 22 30 lb Readi Reel Adapter Adapts 22 30 lb 10 14 kg Lincoln Readi Reels of electrode to 2 51mm spindle Order K363P 50 60 lb Readi Reel Adapter Adapts 60 lb 27 2 kg coils of Lincoln electrode to 2 51mm spindle Order K438 50 60 lb Coil Adapter Adapts 50 60 lb 22 6 27 2 kg coils of Lincoln electrode to 2 51mm spindle Order K1504 1 Plastic Wire Cover Plastic enclosure for up to 60 lb 27 2kg wire packages Order K1634 2 Digital Voltmeter Includes digital display meter polarity switch and hold feature for easy checking of procedure Order K417 Water Solenoid Kit Includes solenoid valve mounting bracket and quick disconnect gun and cable hose water connection Order K527 Gas Solenoid Assembly Includes solenoid valve and mounting bracket For LN 7 K521 model only Order K494 Gas Guard Regulator For CO2 and argon blend gases Reduces surge caused by excess pressure in supply hose Includes adjustable flow regulator with removable adjustor key Order K659 1 LN 7 and LN 7 GMA www lincolnelectric com 7 RECOMMENDED OPTIONS GENERAL OPTIONS CONT GMA Timer Kit Provides delays for preflow and postflow gas adjustable burn back and a purge cold inch
10. ods and service requirements PRODUCT DESCRIPTION ORDER NUMBER QUANTITY PRICE THE LINCOLN ELECTRIC COMPANY 22801 St Clair Ave Cleveland OH 44117 1199 216 481 8100 www lincolnelectric com LN 7 AND LN 7 GMA ORDER FORM Subject to Change This information is accurate to the best of our knowledge at the time of printing Please refer to www lincolnelectric com for any updated information
11. om 3 A CLOSER LOOK Connections are for current equipment design Subject to change without notice CV 250 CV 300 V350 PRO CV400 I CV500 I Twist Mate 14 Pin Control Cable Weld Power Cable Control Cable Control Cable Adapter Cable Weld Power Cable Weld Power Cable CV 400 CV 655 DC 400 DC 600 DC 655 Ranger 250 Ranger 250 LPG Ranger 305G Ranger 305D Classic II 1 Classic 300G 1 Classic 300D 1 Commander 300 Vantage 500 Air Vantage 500 Control Cables K1818 10 Wire Feeder Control Cable 10 ft Extensions K1797 25 14 pin Extension Control Cable 25 ft K1797 50 14 pin Extension Control Cable 50 ft Semiautomatic Wire Feeder Semiautomatic Wire Feeder Magnum gun and cable assembly Magnum gun and cable assembly Magnum gun and cable assembly Semiautomatic Wire Feeder Control Cables K1818 10 Wire Feeder Control Cable 10 ft K1798 Adapter Cable 14 pin to Terminal Strip Extensions K1797 25 14 pin Extension Control Cable 25 ft K1797 50 14 pin Extension Control Cable 50 ft DC 1000 Control Cables K1818 10 Wire Feeder Control Cable 10 ft Extensions K1797 25 14 pin Extension Control Cable 25 ft K1797 50 14 pin Extension Control Cable 50 ft 1 Requires Wire Feed Module 14 Pin Stud Stud Terminal Strip INPUT CABLE SELECTION GUIDE Weld Power Cables K1840 10 Twist Mate to Lug 1 0 350A 60 Duty Cycle 10 ft W
12. pm m min in mm in mm lbs kg Solid Cored LN 7 K521 115 VAC 600 Amps 60 50 500 023 3 32 045 7 64 10 9 x 9 8 x 9 6 24 2 Roll 50 60 Hz 1 3 12 7 0 6 2 4 1 2 2 8 277 x 249 x 244 10 9 2 5 Amps LN 7 GMA K440 2 75 700 023 1 16 045 5 64 10 9 x 9 8 x 9 6 26 2 Roll 1 9 17 8 0 6 1 6 1 2 2 0 277 x 249 x 244 10 9 LN 7 GMA K567 2 75 700 023 1 16 045 5 64 11 1 x 11 6 x 9 7 32 4 Roll 1 9 17 8 0 6 1 6 1 2 2 0 282 x 295 x 246 13 8 1 LN 7 model only Shown with options LN 7 and LN 7 GMA www lincolnelectric com 2 A CLOSER LOOK PERFORMANCE Easy wire feeding with standard 2 roll or optional 4 roll wire drive system Unique drive roll design provides positive feeding and quick reload ing by simply starting wire into guide tube The drive rolls and guide tubes are designed for long life and precise wire feeding Dynamic braking system stops wire feed motor quickly to minimize crater sticking problems Solid state control compensates for wire drag and input line variations to maintain accurate wire feed speed QUALITY AND RELIABILITY Control circuit features cold electrode when the gun trigger is released for an added measure of safety Completely enclosed case protects the heavy duty wire drive mechanism from damage yet allow easy access to rolls Rugged and durable design recognized throughout the industry fo
13. r its long life and years of trouble free wire feeding Manufactured under a quality system certified to ISO 9001 requirements Three year warranty on parts and labor FEATURES Tool less quick release wire drive tension system and gun cable connections for easy wire or gun changes Can be boom mounted or add optional Universal Wire Reel Stand casters and or swivel platform and mount on power source for extra versatility Optional time controls for pre flow and post flow gas burnback as well as cold inch and gas purge control Optional digital display is easy to read in bright sunlight or dark working conditions Compatible with many Lincoln power sources including the CV 250 CV 300 CV400 I CV500 I CV 655 V350 PRO DC 400 DC 600 DC 655 DC 1000 Ranger 250 Ranger 250 LPG Ranger 305G Ranger 305D Classic II Classic 300G Classic 300D Commander 300 Vantage 500 Air Vantage 500 Optional time controls for pre flow and post flow gas burnback as well as cold inch and gas purge control LN 7 GMA 2 roll Ready Pak Wire Feeder Package K1801 1 SYSTEM SELECTION Ready Pak Packages Take the hassle out of ordering Order a Ready Pak pre assembled welding package LN 7 GMA 2 Roll Ready Pak Wire Feeder Package Order K1801 1 Universal Wire Reel Stand 10 ft Control Cable 035 052 Drive Roll Guide Tube Kit LN 7 and LN 7 GMA www lincolnelectric c
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