Instruction d'utilisation Lincoln Electric LN-742H

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LN- 742 and LN- 742H
Semiautomatic Constant Speed Wire Feeders

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LN- 742 and LN- 742H • Unique variable wire run-in speed and acceleration provide controlled arc starting. Matches starting per- formance to power source starting dynamics, wire type, welding proce- dures, and operator technique. • 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. • Tool-less quick release wire drive tension system and gun cab

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A CLOSER LOOK Gas Purge Control Cold Inch Control Large digital display for easy Keys used to increase or viewing of adjustable welding decrease wire feed speed parameters and inch speed Wire feed speed and inch speed controls Trigger Mode Control Preflow, Postflow, Burnback and Spot Time Controls TECHNICAL SPECIFICATIONS Wire Speed Wire Size Range Product Ordering Range in. (mm) Weight Dimensions Name Information IPM (m/min) Input (net) HxWxD Solid Cored LN-742 K617-1 50-770 .025-1/16” .045-

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THE TOTAL DRIVE ROLL AND SOLUTION GUIDE TUBE KITS 2 roll 4 roll Choose from a complete line of Lincoln products to generate the total Steel Wire Sizes: solution for your welding application: .023-.025 (0.6mm) solid KP653-025S KP655-025S .030 (0.8mm) solid KP653-030S KP655-030S • CV-250, CV-300, CV-400, CV-655 .035 (0.9mm) solid KP653-035S KP655-035S CV400-I, CV500-I, DC-400, .035 (0.9mm) cored KP653-035C KP655-035C DC-600*, and DC-655. .045-.052 (1.2-1.3mm) solid KP653-052S KP655-052S .045

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Twist-Mate INPUT CABLE ASSEMBLY SELECTION GUIDE 14 Pin CV-250 CV-300 V350-PRO CV400-I CV500-I Semiautomatic V300-I Wire Feeder Magnum gun and cable assembly 14 Pin/Twist-Mate™ Input Cable Assemblies K591 400 amp, 60% duty cycle. K593 400 amp, 60% duty cycle. Includes gas and water hoses. 10 ft. (3.0 m) only. CV-400 14 Pin CV-655 DC-400 DC-600 (Above code 10500) DC-655 Ranger 9 Ranger 275 Ranger 300 DLX Stud Commander 300* Semiautomatic Magnum gun and Wire Feeder Commander 500* cable assemb

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OPTIONS AVAILABLE ® COIL ADAPTER READI-REEL ADAPTERS SPINDLE ADAPTERS 60 lb. (27.2 kg) Adapter 30 lb. (14 kg) Adapter For Readi-Reels and Spools Adapts 60 lb. (27.2 kg) coils of Lincoln Adapts 22-30 lb. (10-13.6 kg) Lincoln 2” O.D. spindle for mounting Readi- electrode to 2” (51mm) spindle. Readi-Reels of electrode to 2” Reels and 2” (51mm) I.D. spools up to Order K1504-1. (51mm) spindle. Order K363P. 60 lb. (27.2 kg) capacity to a K303 Quantity of 15, Order K363P-15. stand. Order K162-1. K150

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OPTIONS AVAILABLE Water Solenoid Kit Swivel Platform Undercarriage Includes solenoid and fittings for use Mounts to the lift bail on the power Includes mounting frame, front with water-cooled guns and Magnum source and bottom of the K1524-1. casters, rear wheels and handle. water coolers. Order K590-1. Wire feeder may be lifted off if need- For use with K303 only. Order K163. ed. Compatible with Light Duty Caster Kit. Includes “lazy susan” Insulated Lift Bail Water Connection Kit parts tray. Ord

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RECOMMENDED OPTIONS REMOTE VOLTAGE CONTROL SELECTION PROCESS K775 DC-600 Wire Feeder Input Cable Asbly. (Terminal Strip) K857 6 Pin Ranger 9 Ranger 275 Ranger 300 DLX 14 Pin Commander 300 Commander 500 Wire Feeder Input Cable Asbly. (14 pin) * Equipped with 14 pin MS-type CV-250 K857 connections as standard, and each CV-300 model has easy access to terminal strip 14 Pin *CV-400 connection if required. *CV-655 K864 Adapter *DC-400 Subject to change without notice. *DC-655 V350-PRO Wire Feeder In