Lincoln LN-742, LN-742H

F-5

NOTES

LN-742 & LN-742H

F-5

Contents

Main LN-742 & LN-742H Wire Feeders OPERATORS MANUAL IM476-A FOR ENGINE powered equipment. i ELECTRIC AND MAGNETIC FIELDS may be dangerous ii ARC RAYS can burn. ELECTRIC SHOCK can kill. FUMES AND GASES can be dangerous. FOR ELECTRICALLY powered equipment. CYLINDER may explode if damaged. iii WELDING SPARKS can cause fire or explosion. iv PRCAUTIONS DE SRET PRCAUTIONS DE SRET POUR LES MACHINES SOUDER TRANSFORMATEUR ET REDRESSEUR vv Thank You Please Examine Carton and Equipment For Damage Immediately On-Line Product Registration vi vi TABLE OF CONTENTS A-1 PHYSICAL DIMENSIONS ENVIRONMENTAL RATING (ALLMODELS) TECHNICAL SPECIFICATIONS LN-742 INPUT VOLTAGE WIRE FEED SPEED WIRE DIAMETERS TEMPERATURE RATING (ALL MODELS) A-2 MOUNTING LOCATION INPUT CABLE CONNECTIONS NUT STUD ELECTRODE CONTROL CABLE COPPER STRAP A-3 A-4 LN-742 & LN-742H A-4 FIGURE A.3 LN-742 WIRE FEEDER TO LINCOLN POWER SOURCE CONNECTION DIAGRAM. + - A-5 WORK CABLE GUN AND CABLE ASSEMBLIES GUN CABLE CONNECTIONS A-6 WATER CONNECTIONS (FOR WATER COOLED GUNS) A-7 GMAW SHIELDING GAS HOOKUP B-1 OPERATING INSTRUCTIONS SAFETY PRECAUTIONS GENERAL DESCRIPTION RECOMMENDED PROCESSES AND EQUIPMENT B-2 CONTROLS AND SETTINGS B-3 ACCELERATION SETTING ENGLISH OR METRIC SPEED DISPLAY UNITS CIRCUIT PROTECTION DRIVE ROLL INSTALLATION CHANGING DRIVE ROLLS FOR TWO- ROLL WIRE FEEDERS: B-4 GUIDE TUBE DETAIL B-5 CHANGING DRIVE ROLLS FOR FOUR- ROLL WIRE FEEDERS: B-6 GUIDE TUBE DETAIL B-7 IDLE ROLL PRESSURE SETTING B-8 WIRE LOADING B-9 B-10 B-10 WIRE REEL LOADING 50 AND 60 LB COILS (K303 OR K376 WIRE REEL STAND) B-11 B-11 WIRE REEL LOADING 50 AND 60 LB COILS (K1524-1 UNIVERSAL WIRE REEL STAND) ____________________________________ B-12 MAKING A WELD WIRE REEL CHANGING C-1 GENERAL C-2 K163 UNDERCARRIAGE K178-1 MOUNTING PLATFORM K589-1 REMOTE CONTROL KIT K590-1 WATER SOLENOID KIT K590-2 WATER CONNECTION KIT POWER INPUT CABLES K1819-[ ] CONTROL CABLES K1817-[ ] CONTROL CABLE EXTENSIONS WELDING GUNS INNERSHIELD GUNS SPINDLES, STANDS, AND ADAPTERS K162H SPINDLE K363P 22 TO 30 LB READI-REEL ADAPTER K376 AND K303 50 TO 60 LB WIRE REEL MOUNTING STANDS UNIVERSAL WIRE REEL STAND (K1524-1) ATTACHING THE WIRE REEL STAND C-6 DRIVE ROLL KITS D-1 MAINTENANCE D-1 ROUTINE MAINTENANCE DRIVE ROLLS AND GUIDE TUBES WIRE REEL MOUNTING HOW TO USE TROUBLESHOOTING GUIDE E-2 E-3 E-4 E-5 E-6 E-7 Page Page Page Page Page AVISO DE PRECAUCION ATTENTION WARNUNG ATENO AVISO DE PRECAUCION ATTENTION WARNUNG ATENO