Lincoln Electric K2950 User's Manual
Contents
1. TAILPIECE INCOMING CONNECTOR CABLE HANDLE NUT CONNECTOR AE THE CABLE HANDLE NUT CABLE BOOT CONNECTOR NUT CABLE HANDLE FIGURE D 4 Wire Feeder End Repair Requires 2 S19492 1 Terminals a Remove the cable liner per Removal Installation and Trimming Instructions in this section b Remove the feeder end connector molded gas plug or barbed fitting cable handle nut plastic tailpiece and connector cover see Figure D 4 NOTE In order to remove the cable handle nut the tail of the connector cover must be depressed and the cable handle nut rotated 1 4 inch turn counter clockwise as viewed from the feeder end c Remove incoming connector from cable by unscrewing connector nut from incoming connec tor If the cable inner tube is difficult to remove from the connector assembly carefully slit it lengthwise with a knife up to the brass connector d Move the cable boot and cable handle toward the middle of the cable past the damaged section e Cut off the damaged section of cable and strip off the outer jacket as shown in Figure D 1 Be careful not to cut the insulation on the control wires while stripping jacket Strip the red and white control leads 1 4 inch 6 4 mm from the end and crimp a new 519492 1 terminal to each lead NOTE The cable contains three control leads Any two control leads can be used provided the two colors used are the same at both ends The extra lead is a spare that can be2. AIX ng inso ALI 3 gt 2 Wear eye ear and body protection Prot jase los ojos los o dos y el cuerpo e Prot gez vos yeux vos oreilles et votre corps e Tragen Sie Augen Ohren und K r perschutz Use prote o para a vista ouvido e corpo ERU S 1 I GRMREUTCT 2 RRR ex 19 50 sare dl y Hike le ily ous Gi si READ AND UNDERSTAND THE MANUFACTURER S INSTRUCTION FOR THIS EQUIPMENT AND THE CONSUMABLES TO USED AND FOLLOW YOUR EMPLOYER S SAFETY PRACTICES SE RECOMIENDA LEER Y ENTENDER LAS INSTRUCCIONES DEL FABRICANTE PARA EL USO DE ESTE EQUIPO Y LOS CONSUMIBLES QUE VA A UTILIZAR SIGA LAS MEDIDAS DE SEGURIDAD DE SU SUPERVISOR LISEZ ET COMPRENEZ LES INSTRUCTIONS DU FABRICANT EN CE QUI REGARDE CET EQUIPMENT ET LES PRODUITS A ETRE EMPLOYES ET SUIVEZ LES PROCEDURES DE SECURITE DE VOTRE EMPLOYEUR LESEN SIE UND BEFOLGEN SIE DIE BETRIEBSANLEITUNG DER ANLAGE UND DEN ELEKTRODENEINSATZ DES HER STELLERS DIE UNFALLVERHUTUNGSVORSCHRIFTEN DES ARBEITGEBERS SIND EBENFALLS ZU BEACHTEN Keep your head out of fumes Use ventilation or exhaust to remove fumes from breathing zone Los humos fuera de la zona de res piraci n e Mantenga la cabeza fuera de los humos Utilice ventilaci n o aspiraci n para gases Gardez la t te l cart des fum es Utilisez un ventilateur ou un aspira teur pour ter les
3. Gun cable assemblies which were assembled with a K466 5 Connector Kit will connect easily to an L Tec feeder equipped with an L Tec feeder connector assembly L Tec feeders require this connector assembly similar to a Tweco adapter to connect with a gun and cable a Check that the adapter and feeder outgoing guide as well as the drive roll are appropriate for the electrode size being used b Fully push the brass connector end of the gun cable into the brass adapter on the outgoing side of the feeder wire drive Secure the cable using the hand screw set screw or pin c Insert the control cable plug from the feeder trigger circuit into the mating socket on the gun cable con nector handle For machines with a twist lock trig ger lead receptacle if the L Tec gun control cable does not easily connect with the socket the gun control cable that came with the K466 5 kit can be used To do this cut off the gun control leads as close to the forked terminals as possible and skin back the leads 7 16 inch 11 mm Remove the twist lock plug from the L Tec control cable and connect it to the K466 5 cable Make sure the outer jacket of the connector is caught within the plug s strain relief MAGNUM amp MAGNUM PRO CURVE 200 GUNS LINCOLN B 1 OPERATION B 1 Read and understand this entire section before operating your machine SAFETY PRECAUTIONS WARNING ELECTRIC SHOCK can kill Do not touch electrically liv
4. Clean cable liner after using approximately 300 pounds 136 kg of electrode Remove the cable from the wire feeder and lay it out straight on the floor Remove the contact tip from the gun Using an air hose and only partial pressure gently blow out the cable liner from the gas diffuser end A CAUTION Excessive pressure at the start may cause the dirt to form a plug Flex the cable over its entire length and again blow out the cable Repeat this procedure until no further dirt comes out Cable Cleaning The MAGNUM amp MAGNUM PRO CURVE 200 gun features the use of repairable cable connectors If the cable ever gets severely damaged it may be cut shorter and repaired by the user Repair cables as fol lows Gun Tube End Repair Requires 2 519492 2 Terminals a Remove the cable liner per Removal Installation and Trimming Instructions on page D 1 b Remove the gun tube per Gun Tubes and Nozzles in this section c Remove three 6 screws from the gun handle sep arate the two halves and remove the cable from the handle along with the trigger assembly d Remove gun tube connector from cable by unscrewing connector nut from gun tube connector If the cable inner tube is difficult to remove from the connector assembly carefully slit it lengthwise with a knife up to the brass connector e Uncouple the strain relief by pushing its outer housing toward the middle of the cable Move the strain relief and the cable
5. Remove brass cable connector see Figure A 1 from the K466 4 kit and screw it onto the feeder end of the gun cable Tighten the connection with the wrench provided b Remove the molded gas plug fitting on the side of the feeder end handle and replace it with the barbed brass fitting provided in the kit The included wrench will fit both the gas plug and barbed fitting c Attach the phone plug connector of the gun control cable provided to the trigger connector on the front of the Hobart feeder d Place one tubing clamp onto each end of the flexi ble tubing provided approximately 2 inch 51 mm in from each end Slide one end of the tubing onto the barbed connector on the feeder end cable han dle Step b and move the clamp down near the end of the tube to assure a good gas seal K446 5 Installation For L Tec Feeders equipped with an L Tec feeder connector assembly a Remove brass cable connector see Figure A 1 from the K466 5 kit and screw it onto the feeder end of the gun cable Tighten the connection with the wrench provided b Check that the molded gas plug fitting is sealing the gas fitting hole in the side of the feeder end handle MAGNUM amp MAGNUM PRO CURVE 200 GUNS LINCOLN A 2 INSTALLATION A 2 c For L Tec machines that require lead connections to made at a terminal strip located within the machine L Tec 225 a gun control cable with forked terminals is provided Connect the terminated lead
6. amp MAGNUM PRO CURVE 200 GUNS LINCOLN Spanish AVISO DE PRECAUCION French ATTENTION German WARNUNG Portuguese ATENCAO HE BIR Chinese Korean Do not touch electrically live parts or electrode with skin or wet clothing e Insulate yourself from work and ground e No toque las partes o los electrodos bajo carga con la piel o ropa moja d a e Aislese del trabajo y de la tierra Ne laissez ni la peau ni des v te ments mouill s entrer en contact avec des pi ces sous tension Isolez vous du travail et de la terre e Ber hren Sie keine stromf hrenden Teile oder Elektroden mit Ihrem K rper oder feuchter Kleidung Isolieren Sie sich von den Elektroden und dem Erdboden e Nao toque partes el tricas e elec trodos com a pele ou roupa molha da Isole se da pega e terra ARPORABA Nige 7 amp 5nftdcmn amp toct OMLHPT ApostreBAx oLRRAKMD DEBERE AR e Bos RT M eHEANL sHeg xe sz ur su e ij AAS SGD Gall pl Gaal Y aay ay e gsi ALI Shall DS laws le Ye tog e Keep flammable materials away e Mantenga el material combustible fuera del rea de trabajo e Gardez l cart de tout mat riel inflammable Entfernen Sie brennbarres Material e Mantenha inflam veis bem guarda dos eiavduos6009 comet i d amp xf i L THREW ECA e i 8 8 fh net e jj 228
7. poor ground connections Inspect repair or replace as neces sary Loose electrode connections Be sure the following connections are tight electrode cable to wire feeder and power source work cable to power source and work gun cable to wire feeder contact tip to nozzle Poor arc striking with sticking or blast off Improper procedures or techniques weld porosity narrow and ropy looking See Gas Metal Arc Welding Guide bead or electrode stubbing into plate GS 100 while welding Improper gas shielding Clean gas cone Make certain that gas diffuser is not restricted Make certain that gas cylinder is not empty or turned off Make certain gas solenoid valve is operating and gas flow rate is proper Remove gun liner and check rubber seal for any sign of deterioration or damage Be sure set screw in brass connector is in place and tightened against the liner bushing Tip seizes in diffuser Tip overheating due to prolonged or excessive high current and or duly cycle welding Do not exceed current and duly cycle rating of gun A light application of high temperature antiseize lubricant such as Lincoln E2607 Graphic Grease may be applied to tip threads CAUTION If for any reason you do not understand the test procedures or are unable to perform the tests repairs safely contact your Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed MAGNUM
8. aux recommendations du fabricant Le dispositif de montage ou la piece souder doit tre branch une bonne mise la terre Autant que possible l installation et l entretien du poste seront effectu s par un lectricien qualifi Avant de faires des travaux l interieur de poste la debranch er l interrupteur la boite de fusibles Garder tous les couvercles et dispositifs de s ret leur place V V for selecting a QUALITY product by Lincoln Electric We want you J hank OU to take pride in operating this Lincoln Electric Company product 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 Lincoln Electric for advice or information about their use of our products We respond to our customers based on the best information in our posses sion at that time Lincoln Electric is not in a position to warrant or guarantee such advice and assumes no liability with respect to such infor mation 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 ca
9. boot toward the middle of the cable past the damaged section f Cut off the damaged section of cable and strip off the outer jacket as shown in Figure D 1 Be careful not to cut the insulation on the control wires while stripping jacket Strip the red and white control leads 1 4 inch 6 4mm from the end and crimp a new 519492 2 terminal to each lead 6 4 mm SKIN L BOTH CONTROL LEADS CONTROL LEAD CABLE A INNER TUBE COPPER STRANDING CONTROL LEAD FIGURE D 1 MAGNUM amp MAGNUM PRO CURVE 200 GUNS LINCOLN D 2 CABLE INNER TUBE CONNECTOR TUBE FIGURE D 2 NOTE The cable contains three control leads Any two control leads can be used provided the two color used are the same at both ends The extra lead is a spare that can be used if one of the other leads breaks g Check that the cable boot and both halves of the strain relief are on the cable Slip the connector nut over the copper strands with the thread end out Orient gun tube connector so machined flat is on the same side of the cable as the red and white control leads Assemble gun tube connector to cable by forcing the steel tube of the connector into the inside diameter of the cable inner tube until the copper strands are butted against the gun tube connector shoulder Keeping the copper strands against the shoulder pull the connector nut over the copper strands engage the gun tube connector threads and ti
10. fum es des zones de travail e Vermeiden Sie das Einatmen von Schweibrauch e Sorgen Sie fiir gute Be und Entliiftung des Arbeitsplatzes e Mantenha seu rosto da fumaca Use ventilac o e exhaust o para remover fumo da zona respirat ria etai ALhmP5mtMdocuc Feat e S3UPBHSITHORSELTCF U e Fi SS REPE Fl f I S BE JL 2002 e dzz 297128 Balada 87 E MAS AS 7140171 SSE ASA las ul jan EAU gaal lio jue aal e 4i olx ui pe Dal usi e Turn power off before servicing e Desconectar el cable de ali mentaci n de poder de la m quina antes de iniciar cualquier servicio e D branchez le courant avant l entre tien e Strom vor Wartungsarbeiten abschalten Netzstrom v llig ff nen Maschine anhalten e opere com as tampas removidas e Desligue a corrente antes de fazer servico e N o toque as partes el tricas nuas e xX2TTL2A ACRBRUD PSR 719 521 7 TgocF v e No Hi Le AHS Aj Qd AUS Jun dell e Do not operate with panel open or guards off No operar con panel abierto o guardas quitadas N op rez pas avec les panneaux ouverts ou avec les dispositifs de protection enlev s e Anlage nie ohne Schutzgeh use oder Innenschutzverkleidung in Betrieb setzen e Mantenha se afastado das partes moventes N o opere com os paineis abertos ou guar
11. possible 2 d 2 Never coil the electrode lead around your body 2 d 3 Do not place your body between the electrode and work cables If the electrode cable is on your right side the work cable should also be on your right side Connect the work cable to the workpiece as close as possible to the area being welded Do not work next to welding power source SAFETY ELECTRIC SHOCK can kill 3 a The electrode and work or ground circuits are electrically hot when the welder is on Do not touch these hot parts with your bare skin or wet clothing Wear dry hole free gloves to insulate hands 3 b Insulate yourself from work and ground using dry insulation Make certain the insulation is large enough to cover your full area of physical contact with work and ground In addition to the normal safety precautions if welding must be performed under electrically hazardous conditions in damp locations or while wearing wet clothing on metal structures such as floors gratings or scaffolds when in cramped positions such as sitting kneeling or lying if there is a high risk of unavoidable or accidental contact with the workpiece or ground use the following equipment Semiautomatic DC Constant Voltage Wire Welder DC Manual Stick Welder AC Welder with Reduced Voltage Control In semiautomatic or automatic wire welding the electrode electrode reel welding head nozzle or semiautomatic weld
12. 1 2 Liner Installation 9 2 Contact Tip and Gas Nozzle A 3 Connector to FE Cel ccccccececeececececcecccececeeccecececaueeaesauauauaeaeaeaeseseececseeeeeeeeeeess A 3 Connection to Lincoln Feeders ssssssssseenenne A 3 Connection to Adapter Feeders 2 A 3 Connection to Miller feeders esee A 3 Connection to Hobart feeders ss A 3 Connection to L Tec feeders ss A 4 ie drug e Section B Safety Pr cautions B 1 General Description coenae need nasii andata ded n ciue daa B 1 Electrodes and Equipment B 2 Making EB io B 2 Avoid Wire Feeding Problems B 2 Maintenance eo iei iacere erreurs uu cts cp oa sente ue Senna sn unen menor nude see noa an Section D Liner REMOVA oria Sea Fata Ix S Ee EM UN eds D 1 Removal Installation and Trimming Installations for K497 D 1 Guri and Tube 225 va daa a DO EY VR ELE R SEA OC D 1 G n GableS re cada dice tau a ada db Eb ree baie d D 1 Cable Cleaning ea saz eda hex D 1 Gun Tube End coetibus exea ria D 1 D 2 Wire Feeder End 2 au tiennent D 3 Troubleshooting inner Section E
13. ATOR 60 Lincoln 10 Series K466 10 AVOIDING WIRE FEEDING PROBLEMS Wire feeding problems can be avoided by observing the following gun handling procedures a Do not kink or pull cable around sharp corners b Keep the electrode cable as straight as possible when welding or loading electrode through cable c Do not allow dolly wheels or trucks to run over cables d Keep cable clean by following maintenance instruc tions e Use only clean rust free electrode The Lincoln electrodes have proper surface lubrication f Replace contact tip when the arc starts to become unstable or the contact tip end is fused or deformed MAGNUM amp MAGNUM PRO CURVE 200 GUNS LINCOLN D 1 MAINTENANCE D 1 LINER REMOVAL AND REPLACEMENT NOTICE The variation in cable lengths prevents the inter changeability of liners Once a liner has been cut for a partic ular gun it should not be installed in another gun unless it can meet the liner cut off length requirement Liners are shipped with the jacket of the liner extended the proper amount Removal Installation and Trimming Instruction for K497 amp K2950 with K466 Connector Kit installed a For gun and cables using a K466 1 K466 2 or K466 5 connector kit locate and loosen two set screws which are used to hold the old liner in place with a 5 64 inch 2 0 mm Allen wrench provided with the connector kit One set screw is located in the connector at
14. DREN AWAY PACEMAKER WEARERS SHOULD CONSULT WITH THEIR DOCTOR BEFORE OPERATING Read and understand the following safety highlights For additional safety information it is strongly recommended that you purchase a copy of Safety in Welding amp Cutting ANSI Standard Z49 1 from the American Welding Society P O Box 351040 Miami Florida 33135 or CSA Standard W117 2 1974 A Free copy of Arc Welding Safety booklet E205 is available from the Lincoln Electric Company 22801 St Clair Avenue Cleveland Ohio 44117 1199 BE SURE THAT ALL INSTALLATION OPERATION MAINTENANCE AND REPAIR PROCEDURES ARE PERFORMED ONLY BY QUALIFIED INDIVIDUALS FOR ENGINE powered equipment 1 a Turn the engine off before troubleshooting and maintenance work unless the maintenance work requires it to be running o 1 b Operate engines in open well ventilated areas or vent the engine exhaust fumes outdoors 1 c Do not add the fuel near an open flame welding arc or when the engine is running Stop the engine and allow it to cool before 2 refueling to prevent spilled fuel from vaporiz ing on contact with hot engine parts and igniting Do not spill fuel when filling tank If fuel is spilled wipe it up and do not start engine until fumes have been eliminated 1 d Keep all equipment safety guards covers and devices in position and in good repair Keep hands hair clothing and tools away from V belts gears fans and all other moving pa
15. E WITH MIXED GAS TABLE B 2 Gun Contact Tips Gas Cable Wire Size Heavy Diffuser Length m in mm Duty Assembly Product Number 035 0 9 KP2744 035 K2950 2 10 45 045 1 2 KP2744 045 KP2746 1 045 1 2 KP2744 045 2746 1 Feeder Kits installed on the gun at the factory ELECTRODES AND EQUIPMENT The MAGNUM amp MAGNUM PRO CURVE 200 gun and cable has been designed for use with Lincoln L 50 and Super Arc L 56 solid steel wire electrodes for the GMAW process and Lincoln Outershield cored electrodes for the gas shielded FCAW process Refer to the appropriate Lincoln Process and Procedure Guidelines for the electrode used for information on recommended electrical and visible stickouts MAKING A WELD a Check that the welding power source is on and that the shielding gas supply is set for the proper flow rate b Position electrode over joint End of the electrode should be slightly off the work c Lower welding helmet close gun trigger and begin welding Hold the gun so the contact tip to work distance gives the correct electrical stickout as required for the procedure being used d To stop welding release the gun trigger and then pull the gun away from the work after the arc goes out Follow wire feeder instruction manual if using a trigger interlock circuit KP2742 1 62R KP2773 2 44 3545 15 2924 60 KP2742 1 62R KP2773 2 KP2924 60 lt Gun Tube INSUL
16. SEE Precautions secs Lx ir E E 1 How to Use Troubleshooting Guide E 1 Troubleshooting 2 bp nrw P202 F Series 1 INSTALLATION 1 Read this entire installation section before you start installation SAFETY PRECAUTIONS WARNING ELECTRIC SHOCK can kill Have an electrician install and ser vice this equipment Turn the input power off at the fuse box before working on equipment not touch electrically hot parts Be sure to discharge capacitors with the procedure outlined in the Maintenance Section of this manual before working in that area of the equipment CONNECTOR KIT INSTALLATION TO GUN CABLE The MAGNUM amp MAGNUM PRO CURVE 200 cable is shipped as a generic assembly and must be assembled with either a K466 1 2 3 4 or 5 Connector Kit K466 1 Installation For Lincoln Feeders a Remove brass cable connector and insulation tube see Figure A 1 from the K466 1 kit Slide the insu lation tube onto the connector from the threaded end and screw it onto the feeder end of the gun cable Tighten the connection with wrench provid ed b Remove the molded gas plug fitting on the side of the feeder end handle and replace it with the barbed brass fitting provided in the kit The included wrench will fit both the gas plug and barbed fitting o Attach the round connector of the gu
17. 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 thoughtful operation on your part DO NOT INSTALL OPERATE OR REPAIR THIS EQUIPMENT WITHOUT READ ING THIS MANUAL AND THE SAFETY PRECAUTIONS CON TAINED THROUGHOUT And most importantly think before you act and be careful OPERATOR S MANUAL RETURN TO MAIN MENU MAGNUM amp MAGNUM PRO CURVE 200 IM434 C GMA GUN and CABLE ASSEMBLY Models K497 K2950 MAGNUM eee ee SSS gt LI NCO LN Copyright Lincoln Global Inc World s Leader in Welding Cutting Products Sales and Service through Subsidiaries and Distributors Worldwide Cleveland Ohio 44117 1199 U S A TEL 216 481 8100 FAX 216 486 1751 WEB SITE www lincolnelectric com l SAFETY A WARNING CALIFORNIA PROPOSITION 65 WARNINGS A 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 OR DEATH KEEP CHIL
18. articuli rement important pour le soudage de t les galvanis es plomb es ou cadmi es ou tout autre m tal qui produit des fume s toxiques Ne pas souder en pr sence de vapeurs de chlore provenant d op rations de d graissage nettoyage ou pistolage La chaleur ou les rayons de l arc peuvent r agir avec les vapeurs du solvant pour produire du phosg ne gas fortement toxique ou autres produits irritants Pour obtenir de plus amples renseignements sur la s ret voir le code Code for safety in welding and cutting CSA Standard W 117 2 1974 Un coup d arc peut tre plus s v re qu un coup de soliel LES MACHINES SOUDER dong TRANSFORMATEUR ET a Utiliser un bon masque avec un verre filtrant appropri REDRESSEUR ainsi qu un verre blanc afin de se prot ger les yeux du ray onnement de l arc et des projections quand on soude ou quand on regarde l arc 1 Porter des v tements convenables afin de prot ger la peau de soudeur et des aides contre le rayonnement de l arc Prot ger l autre personnel travaillant proximit au soudage l aide d crans appropri s et non inflammables Des gouttes de laitier en fusion sont mises de l arc de soudage Se prot ger avec des v tements de protection libres de l huile tels que les gants en cuir chemise paisse pan talons sans revers et chaussures montantes LINCOLN Relier la terre le chassis du poste conformement au code de l lectricit et
19. aterial into the connector cap and tighten the Set screw Three pieces of liner material are includ ed in these connector kits to help guide the electrode through the connector cap The piece with the smallest inner diameter is designed for 045 inch 1 2 mm maximum diameter electrode The next largest diameter is for 1 16 inch 1 6 mm maximum diameter electrode The largest diameter piece of liner material is for 5 64 inch 2 0 mm maximum diameter electrode e Be sure the cable is straight and then trim the liner to the length shown in Figure A 1 for K497 or Figure A 2 for K2950 Remove any burrs from the end of the liner Screw the gas diffuser onto the end of the gun tube and tighten with the wrench provided g Tighten the set screw in the side of the gas diffuser against the cable liner using the Allen wrench provided Note Set screw is not found on Gun Handle end of K2950 CAUTION The screw should only be gently tightened Overtightening will split or collapse the liner and cause poor wire feeding 114 31 8 mm LINER TRIM LENGTH GAS DIFFUSER NOZZLE INSULATOR GAS NOZZLE MAGNUM amp MAGNUM PRO CURVE 200 GUNS LINCOLN A 3 INSTALLATION A 3 FIGURE A 2 COLLAR ASSEMBLY FEEDER END CABLE HANDLE SET SCREW 2 ide j d LI GAS VENTED HOLE LINER ASSEMBLY LINER BUSHING TO BE SEATED TIGHT AGAINST BRASS CABLE CONNECTOR CONTACT TIP AND GAS NOZZLE INSTAL LATION a Choose
20. das removidas e KWP ERHALE E TRRMIF EL EUTF EL e iR SE IITIM ECSUR SR ME TANT E e gdo SE tele ASA arde cols 13 jiga a Jail y 9 AVISO DE PRECAUCION French ATTENTION German WARNUNG Portuguese ATENCAO EE SIR Chinese LEIA E COMPREENDA AS INSTRU ES DO FABRICANTE PARA ESTE EQUIPAMENTO E AS PARTES DE USO E SIGA AS PRATICAS DE SEGURANCA DO EMPREGADOR f 5sSdvSHOoX 5 0f cmERtEKORAe TERMUCTSU TL TRHORSME Eo CT Slo BR EE MO WAN iS E E MRA RMR EA MA TRAVARSHREME 0 ASO SSH HA CHIPS ERA BEI Dax casual QU gll o al gll y candy al LINCOLN World s Leader in Welding and Cutting Products Sales and Service through Subsidiaries and Distributors Worldwide Cleveland Ohio 44117 1199 U S A TEL 216 481 8100 FAX 216 486 1751 WEB SITE www lincolnelectric com
21. e injury or death Always use enough ventilation especially in confined areas to insure breathing air is safe Read and understand the manufacturer s instructions for this equipment and the consumables to be used including the material safety data sheet MSDS and follow your employer s safety practices MSDS forms are available from your welding distributor or from the manufacturer Also see item 1 b SAFETY WELDING and CUTTING SPARKS cause fire or explosion 6 a Remove fire hazards from the welding area If this is not possible cover them to prevent the welding sparks from starting a fire Remember that welding sparks and hot materials from welding can easily go through small cracks and openings to adjacent areas Avoid welding near hydraulic lines Have a fire extinguisher readily available Where compressed gases are to be used at the job site special precautions should be used to prevent hazardous situations Refer to Safety in Welding and Cutting ANSI Standard Z49 1 and the operating information for the equipment being used When not welding make certain no part of the electrode circuit is touching the work or ground Accidental contact can cause overheating and create a fire hazard Do not heat cut or weld tanks drums or containers until the proper steps have been taken to insure that such procedures will not cause flammable or toxic vapors from substances inside The
22. e parts such as output terminals or internal wiring J e e Insulate yourself from the work ground Always wear dry insulating gloves FUMES AND GASES can be dangerous Keep your head out of fumes 3 A Use ventilation or exhaust to remove fumes from breathing zone x WELDING CUTTING and GOUGING SPARKS can cause fire or explosion yi Keep flammable material away Do not weld cut or gouge on containers that have held combustibles ARC RAYS can burn De TT Wear eye ear and body protection Only qualified personnel should operate this equip ment Observe all safety information throughout this manual GENERAL DESCRIPTION The MAGNUM amp MAGNUM PRO CURVE 200 amp GMA gun and cable assembly has been designed to meet NEMA specification EW3 for weld ing with steel electrode using the GMAW gas metal arc welding and gas shielded FCAW flux cored arc welding processes See Table B 1 and Table B 2 The K497 MAGNUM amp K2950 MAGNUM PRO CURVE gun is not factory equipped with a feeder end connector With the K466 1 MAGNUM Connector Kit it can be used with any Lincoln LN 7 LN 8 LN 9 SP200 or LN 25 semiautomatic wire feeder An optional K481 MAGNUM Fast Connect Gas Tube Kit is available to provide tool less gas tube connection to Lincoln wire feeders Non GMA model wire feeders require an optional gas solenoid valve The K497 gun can also be used
23. g the correct shielding gas for the process used and properly operating regulators designed for the gas and pressure used All hoses fittings etc should be suitable for the application and maintained in good condition Always keep cylinders in an upright position securely chained to an undercarriage or fixed support Oylinders should be located Away from areas where they may be struck or subjected to physical damage safe distance from arc welding or cutting operations and any other source of heat sparks or flame Never allow the electrode electrode holder or any other electrically hot parts to touch a cylinder Keep your head and face away from the cylinder valve outlet when opening the cylinder valve Valve protection caps should always be in place and hand tight except when the cylinder is in use or connected for use Read and follow the instructions on compressed gas cylinders associated equipment and CGA publication Precautions for Safe Handling of Compressed Gases in Cylinders available from the Compressed Gas Association 1235 Jefferson Davis Highway Arlington VA 22202 FOR ELECTRICALLY powered equipment 8 a Turn off input power using the disconnect switch at the fuse box before working on the equipment Install equipment in accordance with the U S National Electrical Code all local codes and the manufacturer s recommendations Ground the equip
24. ghten in place Figure D 2 NOTE For best results insert a 175 197 inch 4 5 5 0 mm diameter rod through the connector and into core of cable approximately 5 00 inch 127 mm when pushing the connector tube into the cable core tube STRAIN RELIEF HOUSING CABLE BOOT CONTROL WIRES COPPER STRANDS STRAIN RELIEF A MAINTENANCE D 2 CONNECTOR NUT GUN TUBE CONNECTOR OR INCOMING CONNECTOR To tighten hold the connector in place while turning the nut and remove the rod from the core The proce dure ensures the inner core does not kink while assembling or tightening h Pull the cut off lead terminals off the trigger CABLE ASSEMBLY Lad d m gt assemble and connect the replacement control lead terminals Position the cable boot and strain relief on the cable so it fits in cable handle cavity and lock the strain relief in place by pushing the two halves together Assemble cable in left side of gun handle Assemble trigger into the proper handle cavity and connect the control leads Assemble right side of gun handle and tighten the three screws that hold the handle together Refer to Figure D 3 Install gun tube per Gun Tubes and Nozzles Section Install and trim liner per Liner Installation Section GUN HOUSING TRIGGER ASSEMBLY FIGURE D 3 MAGNUM amp MAGNUM PRO CURVE 200 GUNS LINCOLN D 3 MAINTENANCE D 3 PRESS HERE TO REMOVE GAS PLUG OR FITTING
25. hines souder parce que la tension entre les deux pinces peut tre le total de la tension vide des deux machines Si on utilise la machine souder comme une source de courant pour soudage semi automatique ces precautions pour le porte lectrode s applicuent aussi au pistolet de Soudage 2 Dans le cas de travail au dessus du niveau du sol se prot ger contre les chutes dans le cas ou on recoit un choc Ne jamais enrouler le c ble lectrode autour de n importe quelle partie du corps PR CAUTIONS DE S RET POUR soudage Utiliser des lunettes avec crans lateraux dans les zones ou l on pique le laitier Eloigner les mat riaux inflammables ou les recouvrir afin de pr venir tout risque d incendie d aux tincelles Quand on ne soude pas poser la pince une endroit isol de la masse Un court circuit accidental peut provoquer un chauffement et un risque d incendie S assurer que la masse est connect e le plus pr s possible de la zone de travail qu il est pratique de le faire Si on place la masse sur la charpente de la construction ou d autres endroits loign s de la zone de travail on augmente le risque de voir passer le courant de soudage par les chaines de lev age c bles de grue ou autres circuits Cela peut provoquer des risques d incendie ou d echauffement des chaines et des c bles jusqu ce qu ils se rompent Assurer une ventilation suffisante dans la zone de soudage Ceci est p
26. ing gun are also electrically hot Always be sure the work cable makes a good electrical connection with the metal being welded The connection should be as close as possible to the area being welded Ground the work or metal to be welded to a good electrical earth ground Maintain the electrode holder work clamp welding cable and welding machine in good safe operating condition Replace damaged insulation Never dip the electrode in water for cooling Never simultaneously touch electrically hot parts of electrode holders connected to two welders because voltage between the two can be the total of the open circuit voltage of both welders When working above floor level use a safety belt to protect yourself from a fall should you get a shock Also see Items 6 c and 8 ARC RAYS can burn 4 a Use a shield with the proper filter and cover plates to protect your eyes from sparks and the rays of the arc when welding or observing open arc welding Headshield and filter lens should conform to ANSI Z87 standards 4 b Use suitable clothing made from durable flame resistant 5 f LINCOLN material to protect your skin and that of your helpers from the arc rays Protect other nearby personnel with suitable non flammable screening and or warn them not to watch the arc nor expose themselves to the arc rays or to hot spatter or metal 4 FUMES AND GASES can be dangerous 5 a Welding may p
27. ment in accordance with the U S National Electrical Code and the manufacturer s recommendations LINCOLN Refer to http www lincolnelectric com safety for additional safety information SAFETY i PR CAUTIONS DE S RET 5 Toujours porter des lunettes de s curit dans la zone de Pour votre propre protection lire et observer toutes les instructions et les pr cautions de s ret specifiques qui parraissent dans ce manuel aussi bien que les pr cautions de s ret g n rales suiv antes S ret Pour Soudage A L Arc 1 Protegez vous contre la secousse lectrique a Les circuits l lectrode et la pi ce sont sous tension quand la machine souder est en marche Eviter toujours tout contact entre les parties sous tension et la peau nue ou les v tements mouill s Porter des gants secs et sans trous pour isoler les mains Faire tr s attention de bien s isoler de la masse quand on soude dans des endroits humides ou sur un plancher metallique ou des grilles metalliques principalement dans les positions assis ou couch pour lesquelles une grande partie du corps peut tre en contact avec la masse Maintenir le porte lectrode la pince de masse le c ble de soudage et la machine souder en bon et s r tat defonctionnement d Ne jamais plonger le porte lectrode dans l eau pour le refroidir Ne jamais toucher simultan ment les parties sous tension des porte lectrodes connect s deux mac
28. n Register your machine with Lincoln Electric either via fax or over the Internet For faxing Complete the form on the back of the warranty statement included in the literature packet accompanying this machine and fax the form per the instructions printed on it For On Line Registration Go to our WEB SITE at www lincolnelectric com Choose Quick Links and then Product Registration Please complete the form and submit your registration Read this Operators Manual completely before attempting to use this equipment Save this manual and keep it handy for quick reference Pay particular attention to the safety instructions we have provided for your protection The level of seriousness to be applied to each is explained below WARNING This statement appears where the information must be followed exactly to avoid serious personal injury or loss of life A CAUTION This statement appears where the information must be followed to avoid minor personal injury or damage to this equipment vi TABLE OF CONTENTS Page VE FM ETOILE Section A Safety Pr cautions ecrenensteessoesserreneneessens A 1 Connector Kit Installation to Gun Cable A 1 KA GG a 122 LL ee bi A 1 PER A 1 algo n A 1 Mull HC T 1 66 5 NN A
29. n control cable provided to the trigger connector on the front of the Lincoln feeder NOTE Both the plug and socket are keyed and must be properly oriented d Place one tubing clamp onto each end of the flexi ble tubing provided approximately 2 inch 51 mm in from each end Slide one end of the tubing onto the barbed connector on the feeder end cable han dle step b and move the clamp down near the end of the tube to assure a good gas seal NOTE An optional K481 MAGNUM Fast Connect Gas Tube Kit is available to provide tool less gas tube connection to Lincoln wire feeders Install per the instructions sent with the kit K446 2 Installation For Adapted Feeders a Remove brass connector see Figure A 1 from the K466 2 kit and screw it onto the feeder end of the gun cable Tighten the connection with the wrench provided b Check that the molded gas plug fitting is sealing the gas fitting hole in the side of the feeder end handle K446 3 Installation For Miller Feeders a Remove brass cable connector see Figure A 1 from the K466 3 kit and screw it onto the feeder end of the gun cable Tighten the connection with the wrench provided b Check that the molded gas plug fitting is sealing the gas fitting hole in the side of the feeder end handle c Attach the round connector or the gun control cable provided to the trigger connector on the front of the Miller feeder K446 4 Installation For Hobart Feeders a
30. nnot 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 methods and service requirements 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 Please Examine Carton and Equipment For Damage Immediately When this equipment is shipped title passes to the purchaser upon receipt by the carrier Consequently Claims for material damaged in shipment must be made by the purchaser against the transportation company at the time the shipment is received Please record your equipment identification information below for future reference This information can be found on your equipment nameplate or product carton label Model Name and Sales Spec Number K xxx Date of Purchase Whenever you request replacement parts for or information on this equipment always supply the information you have recorded above On Line Product Registratio
31. ock on the outgoing side of the feeder wire drive Secure the cable using the hand screw or set screw in the conductor block c Insert the control cable plug from the feeder trigger circuit into the mating socket on the feeder end cable handle See K466 1connector kit installation to gun cable in this section d Slide the free end of the flexible hose onto the barbed gas fitting on the front of the Lincoln feeder See K466 1 connector kit installation to gun cable in this section Move the corresponding tubing clamp down near the end of the tube to assure a good gas seal MAGNUM amp MAGNUM PRO CURVE 200 GUNS LINCOLN A 4 Connection to Adapted Feeders Gun cable assemblies which were assembled with a K466 2 Connector Kit will connect easily to any properly adapted feeder a Check that the adapter and feeder outgoing guide as well as the drive roll are appropriate for the electrode size being used b Fully push the brass connector end of the gun cable into the brass adapter on the outgoing side of the feeder wire drive Secure the cable using the hand screw or set screw in the adapter c Insert the control cable plug from the feeder trigger circuit into the mating socket on the gun cable con nector handle Connection to Miller Feeders Gun and cable assemblies which were assembled with a K466 3 Connector Kit will connect easily to a variety of popular Miller wire feeders a Check that the gun liner connec
32. ou do not understand the test procedures or are unable to perform the tests repairs safely contact your Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed MAGNUM amp MAGNUM PRO CURVE 200 GUNS LINCOLN E 2 TROUBLESHOOTING E 2 Observe all Safety Guidelines detailed throughout this manual PROBLEMS POSSIBLE RECOMMENDED SYMPTOMS CAUSE COURSE OF ACTION Drive rolls turn but wire will not feed of Gun cable kinked and or twisted wire feeding is rough Keep as straight as possible Inspect cable and replace if necessary Wire jammed in gun and cable Remove wire from gun and cable feed in new wire Note any obstruc tion Replace liner if necessary Incorrect drive rolls and guide tubes Be sure the wire diameter being used is stamped on drive rolls and guide tubes Replace if necessary Gun cable liner dirty Clean liner or replace Worn drive rolls i Replace or reverse split drive roll type ig a Electrode rusty and or dirty E Miles evel ave ce Replace or electrode if it is rusty checked and the problem persists Worn or improper size cable liner Contact your local Lincoln Replace cable liner Authorized Field Service Facility Partially flashed melted or improper size contact tip Replace the contact tip Variable or hunting arc Contact tip worn or incorrect size Replace contact tip Worn or undersize ground cables or
33. roduce fumes and gases hazardous to health Avoid breathing these fumes and gases When welding keep your head out of the fume Use enough ventilation and or exhaust at the arc to keep fumes and gases away from the breathing zone When welding with electrodes which require special ventilation such as stainless or hard facing see instructions on container or MSDS or on lead or cadmium plated steel and other metals or coatings which produce highly toxic fumes keep exposure as low as possible and within applicable OSHA PEL and ACGIH TLV limits using local exhaust or mechanical ventilation In confined spaces or in some circum stances outdoors a respirator may be required Additional precautions are also required when welding on galvanized steel The operation of welding fume control equipment is affected by various factors including proper use and positioning of the equipment maintenance of the equipment and the spe cific welding procedure and application involved Worker exposure level should be checked upon installation and periodically thereafter to be certain it is within applicable OSHA PEL and ACGIH TLV limits Do not weld in locations near chlorinated hydrocarbon vapors coming from degreasing cleaning or spraying operations The heat and rays of the arc can react with solvent vapors to form phosgene a highly toxic gas and other irritating prod ucts Shielding gases used for arc welding can displace air and caus
34. rts when starting operating or repairing equipment In some cases it may be necessary to remove safety guards to perform required maintenance Remove guards only when necessary and replace them when the maintenance requiring their removal is complete Always use the greatest care when working near moving parts 1 f Do not put your hands near the engine fan Do not attempt to override the governor or idler by pushing on the throttle control rods while the engine is running M To prevent accidentally starting gasoline engines while turning the engine or welding generator during maintenance work disconnect the spark plug wires distributor cap or magneto wire as appropriate LINCOLN 1 h To avoid scalding do not remove the radiator pressure cap when the engine is hot ELECTRIC AND MAGNETIC FIELDS may be dangerous Electric current flowing through any conductor causes localized Electric and Magnetic Fields EMF Welding current creates EMF fields around welding cables and welding machines EMF fields may interfere with some pacemakers and welders having a pacemaker should consult their physician before welding Exposure to EMF fields in welding may have other health effects which are now not known All welders should use the following procedures in order to minimize exposure to EMF fields from the welding circuit 2 d 1 Route the electrode and work cables together Secure them with tape when
35. s to the terminal strip For a machine that requires a twist lock gun control cable connections continue to use the L Tec gun control cable provided with the L Tec wire feeder connector assembly Connect the twist lock plug to the proper receptacle on the machine LINER INSTALLATION a Lay the gun and cable straight on a flat surface b Make sure that the set screw in the connector end is backed out so as not to damage liner or liner bushing c Insert a new untrimmed liner into the connector end of the cable Be sure the liner bushing is stencilled appropriately for the wire size being used NOTE For liners series KP44N and KP45N Before fully seating the liner bushing it will be necessary to trim the liner s inner tube flush with the liner bushing using a sharp blade After triming remove any burrs from inner tube and insure that the opening is fully open d Before installing the gas diffuser fully seat the liner bushing in the connector and FEEDER END CABLE HANDLE INSULATION TUBE K466 1 ONLY BRASS CABLE CONNECTOR MOLDED GAS PLUG SET SCREW LINER ASSEMBLY LINER BUSHING TO BE SEATED TIGHT AGAINST BRASS CABLE CONNECTOR FIGURE A 1 CLAMPING SCREW For K466 1 K466 2 K466 5 and K2950 tighten the set screw in the cable connector OR For K466 3 and K466 4 screw in the connector cap provided in the kit until it seats on the face of the bushing Then insert the appropriate piece of liner m
36. terminals or internal wiring MAGNUM amp MAGNUM PRO CURVE 200 GUNS LINCOLN E TROUBLESHOOTING E 1 HOW TO USE TROUBLESHOOTING GUIDE WARNING Service and Repair should only be performed by Lincoln Electric Factory Trained Personnel Unauthorized repairs performed on this equipment may result in danger to the technician and machine operator and will invalidate your factory warranty For your safety and to avoid Electrical Shock please observe all safety notes and precautions detailed throughout this manual This Troubleshooting Guide is provided to help you locate and repair possible machine malfunctions Simply follow the three step procedure listed below Step 1 LOCATE PROBLEM SYMPTOM Look under the column labeled PROBLEM SYMP TOMS This column describes possible symptoms that the machine may exhibit Find the listing that best describes the symptom that the machine is exhibiting Step 2 POSSIBLE CAUSE The second column labeled POSSIBLE CAUSE lists the obvious external possibilities that may contribute to the machine symptom Step 3 RECOMMENDED COURSE OF ACTION This column provides a course of action for the Possible Cause generally it states to contact your local Lincoln Authorized Field Service Facility If you do not understand or are unable to perform the Recommended Course of Action safely contact your local Lincoln Authorized Field Service Facility CAUTION If for any reason y
37. the correct size contact tip for the elec trode being used wire size is stenciled on the side of the contact tip and screw it snugly into the gas diffuser b Be sure the nozzle insulator is fully screwed onto the gas diffuser and does not block the gas holes in the diffuser c Slip the appropriate gas nozzle onto the nozzle insulator Either a 62 inch 15 9 mm or 50 12 7 mm I D slip on gas nozzle may be used and should be selected based on the welding application Choose the gas nozzle as appropriate for the GMAW process to be used Typically the contact tip end should be flush to 12 inch 3 1 mm extended for the short circuiting transfer process and 12 inch 3 1 mm recessed for spray transfer For the Outershield FCAW process 1 4 inch 6 3 mm recess is recommended SAFETY PRECAUTIONS WARNING o s ELECTRIC SHOCK CAN KILL not touch electrically live parts such as output terminals or inter nal wiring GUN TUBE ASSEMBLY 9 16 14 3mm LINER TRIM 4 LENGTH x 2 CONTACT S lt 2 CONNECTION TO FEEDER Connection to Lincoln Feeders Gun cable assemblies which were assembled with a K466 1 Connector Kit will connect easily to any Lincoln LN 7 LN 8 LN 9 SP200 or LN 25 feeder a Check that the drive roll s and feeder guide tubes are appropriate for the electrode size being used b Fully push the brass connector end of the gun cable into the conductor bl
38. the wire feeder end The gas nozzle and nozzle insulator must be removed to gain access to the second set screw which is located in the gas diffuser Note Set screw is not found on K2950 b For gun and cables using a K466 3 or K466 4 connector kit remove the connector cap with the wrench provided in the kit Loosen the set screw located the gas diffuser with the Allen wrench provided in the connector kit The gas nozzle and nozzle insulator must be removed to gain access to the diffuser o Remove the gas diffuser from the gun tube o Lay the gun cable on a flat surface with the cable straight and pull the liner out of the cable from the cable connec tor end e Install the new liner per Liner Installation Section GUN TUBES AND NOZZLES a Replace worn contact tips as required b Remove spatter from inside of gas nozzle and from tip after each 10 minutes of arc time or as required c To remove gun tube from gun loosen socket head clamping screw in handle with 3 16 inch 4 8 mm Allen wrench Remove gas nozzle and nozzle insulator and also loosen small set screw in the diffuser using 5 64 inch 2 0 mm Allen wrench Set Screw not found on K2950 NOTE Small set screw in the diffuser must be loosened otherwise liner could be damaged when attempting to remove gun tube Pull gun tube out from gun handle To reinstall insert the gun tube push in as far as possible and retighten screws GUN CABLES Cable Cleaning
39. tor cap liner drive rolls and guide tubes are appropriate for the elec trode size being used Three different diameter pieces of liner material are included in each kit b Fully push the brass connector end of the gun and cable into the connector receptacle on the outgoing side of the feeder wire drive Tighten the hand screw to clamp down on the connector c Insert the control cable plug from the feeder trigger circuit into the mating socket on the gun cable con nector handle Connection to Hobart Feeders Gun and cable assembles which were assembled with a K466 4 Connector Kit will connect easily to a variety of Hobart wire feeders a Check that the gun liner connector cap liner drive rolls and guide tubes are appropriate for the elec trode size being used These different diameter pieces of liner material are included in each kit b Fully push the brass connector end of the gun and cable into connector receptacle on the outgoing side of the feeder wire drive Tighten the hand screw to clamp down on the connector c Insert the control cable plug from the feeder trigger circuit into the mating socket on the gun cable connector handle d Slide the free end of the flexible hose mounted to the gun in K466 4 Installation Section onto the gas fitting on the Hobart wire feeder Move the corresponding tubing clamp down near the end of the tube to assure a good gas seal INSTALLATION Connection to L Tec Adapted Feeders
40. used if one of the other leads breaks f Check that the cable boot and cable handle are on the cable Slip the connector nut over the copper strands with the threaded end out Assemble incoming connector to cable by forcing the steel tube of the connector into the inside diameter of the cable inner tube tube until the copper strands are butted against the incoming connector shoul der Keeping the copper strands against the shoulder pull the connector nut over the copper strands engage the incoming connector threads and tight en in place Refer to Figure D 2 NOTE For best results insert a 175 197 inch 4 5 5 0 mm diameter rod through the connector and into core of cable approximately 5 00 127 mm when pushing the connector tube into the cable core tube To tighten hold the connector in place while turning the nut and remove the rod from the core This proce dure ensures the inner core does not kink while assembling or tightening g Position cable boot and cable handle on cable and assemble replacement control wire terminals in place on the cable handle Insert connector cover in place Install tailpiece and fasten to cable handle with cable handle nut Refer Figure D 4 h Replace the molded gas plug or barbed fitting and feeder end connector i Install and trim liner per Liner Installation in this section WARNING e ELECTRIC SHOCK CAN KILL Do not touch electrically live parts Such as output
41. with any wire feeder equipped with a Tweco 1 2 3 350 or 4 wire feed adapter kit by using the K466 2 Adapted Feeder Connector Kit A K466 3 Miller Feeder Connector Kit allows connection of the MAGNUM amp MAGNUM PRO CURVE to popular Miller wire feeders A K466 4 Hobart Feeder Connector Kit allows con nection of the MAGNUM amp MAGNUM PRO CURVE to popular Hobart wire feeders A K466 5 L Tec Feeder Connector Kit allows connec tion of the MAGNUM amp MAGNUM PRO CURVE to popular L Tec wire feeders For best results when welding mild and alloy steels it is recommended that Lincoln solid wire electrodes be used for the GMAW process and OS71 Lincoln Outershield cored electrodes for the gas shielded FCAW process MAGNUM 200 200 AMPS AT 60 DUTY CYCLE WITH CO GAS 150 AMPS AT 60 DUTY CYCLE WITH MIXED GAS TABLE B 1 Gun Contact Standard Duty KP14 25 30 Product Length Wire Size Number m 025 0 6 Cable Tips Gas Diffuser Gas Assembly KP52 23 Gun Tube Insulator 60 KP42 25 15 KP2028 1 Nozzle KP22 50 KP14 35 45 KP52 KP22 50 KP42 4045 15 KP2028 1 KP14 35 45 KP52 KP22 50 KP42 4045 15 KP2028 1 KP14 35 45 KP52 KP22 50 KP42 4045 15 KP2028 1 MAGNUM amp MAGNUM PRO CURVE 200 GUNS LINCOLN B 2 OPERATION B 2 MAGNUM PRO CURVE 200 200 AMPS AT 60 DUTY CYCLE WITH CO GAS 150 AMPS AT 60 DUTY CYCL
42. y can cause an explosion even though they have been cleaned For information purchase Recommended Safe Practices for the Preparation for Welding and Cutting of Containers and Piping That Have Held Hazardous Substances AWS F4 1 from the American Welding Society see address above Vent hollow castings or containers before heating cutting or welding They may explode Sparks and spatter are thrown from the welding arc Wear oil free protective garments such as leather gloves heavy shirt cuffless trousers high shoes and a cap over your hair Wear ear plugs when welding out of position or in confined places Always wear safety glasses with side shields when in a welding area Connect the work cable to the work as close to the welding area as practical Work cables connected to the building framework or other locations away from the welding area increase the possibility of the welding current passing through lifting chains crane cables or other alternate cir cuits This can create fire hazards or overheat lifting chains or cables until they fail Also see item 1 c Read and follow NFPA 51B Standard for Fire Prevention During Welding Cutting and Other Hot Work available from NFPA 1 Batterymarch Park PO box 9101 Quincy Ma 022690 9101 Do not use a welding power source for pipe thawing CYLINDER may explode if damaged 7 a Use only compressed gas cylinders containin
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