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Operator's Manual
MAGNUM
GMA GUN and CABLE ASSEMBLY
Magnum
Magnum PRO Curve
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www.lincolnelectric.com/locator
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Date Purchased
Code: (ex: 10859)
Serial: (ex: U1060512345)
IM381-H
| Issue D ate Dec-15
© Lincoln Global, Inc. All Rights Reserved.
®
& MAGNUM
®
PRO CURVE 300 & 400
For use with models:
K470-[ ]
K1802-1
K471-[ ]
K2286-1
K541-[ ]
K2951-[ ]
K2952-[ ]
K3055-[ ]
Magnum 300, 400 & PRO Curve 400 meet the
following specification(s):
IEC 60974-7:2013
GB 15579.7:2013
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Table of Contents
Related Manuals for Lincoln Electric MAGNUM 300
Summary of Contents for Lincoln Electric MAGNUM 300
- Page 1 K1802-1 K471-[ ] K2286-1 K541-[ ] K2951-[ ] K2952-[ ] K3055-[ ] Magnum PRO Curve Magnum 300, 400 & PRO Curve 400 meet the following specification(s): IEC 60974-7:2013 GB 15579.7:2013 Register your machine: www.lincolnelectric.com/register Authorized Service and Distributor Locator: www.lincolnelectric.com/locator...
- Page 2 THANK YOU FOR SELECTING A QUALITY PRODUCT BY KEEP YOUR HEAD OUT OF THE FUMES. DON’T get too close to the arc. LINCOLN ELEC TRIC. Use corrective lenses if necessary to stay a reasonable distance away from the arc. READ and obey the Safety Data PLEASE EXAMINE CARTON AND EQUIPMENT FOR Sheet (SDS) and the warning label DAMAGE IMMEDIATELY...
- Page 3 MAGNETIC FIELDS MAY W117.2-1974. A Free copy of “Arc Welding Safety” booklet BE DANGEROUS E205 is available from the Lincoln Electric Company, 22801 St. Clair Avenue, Cleveland, Ohio 44117-1199. 2.a. Electric current flowing through any conductor BE SURE THAT ALL INSTALLATION, OPERATION, causes localized Electric and Magnetic Fields (EMF).
- Page 4 S FETY ELECTRIC SHOCK ARC RAYS CAN BURN. CAN KILL. 3.a. The electrode and work (or ground) circuits are 4.a. Use a shield with the proper filter and cover plates to protect your electrically “hot” when the welder is on. Do eyes from sparks and the rays of the arc when welding or not touch these “hot”...
- Page 5 S FETY WELDING AND CUTTING CYLINDER MAY EXPLODE IF SPARKS CAN CAUSE DAMAGED. FIRE OR EXPLOSION. 7.a. Use only compressed gas cylinders containing the correct shielding gas for the process used 6.a. Remove fire hazards from the welding area. If and properly operating regulators designed for this is not possible, cover them to prevent the welding sparks the gas and pressure used.
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Page 6: Table Of Contents
TABLE OF CONTENTS Page General Description ..................... Section A Installation ........................Section B Connector Kit Installation to Gun Cable ................B-1 K466-1 &-8 Installation ....................B-1 K466-2 Installation ...................... B-1 K466-3 Installation ...................... B-1 K466-4 Installation ...................... B-1 K466-5 Installation ...................... B-2 K466-6, 7, 9 &... - Page 7 GENERAL DESCRIPTION GENERAL DESCRIPTION The K466-8 connector kit allows connection of MAGNUM & MAGNUM PRO CURVE 300 and 400 ® ® guns to an LN8 or LN9 when 1/16 and larger The MAGNUM & MAGNUM PRO CURVE 300 amp ® ®...
- Page 8 GENERAL DESCRIPTION MAGNUM® 300 300 AMPS AT 60% DUTY CYCLE WITH CO 200 AMPS AT 60% DUTY CYCLE WITH MIXED GAS Description Contact Tips Product Cable Wire Size Standard Diffuser Cable Gun Tube Number Length (m) in. (mm) Duty Assembly Nozzle Insulator Liner...
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Page 9: General Description
GENERAL DESCRIPTION MAGNUM® 400 400 AMPS AT 60% DUTY CYCLE WITH CO 400 AMPS AT 50% DUTY CYCLE WITH MIXED GAS Description Contact Tips Product Cable Wire Size Standard Diffuser Cable Gun Tube Number Length (m) in. (mm) Duty Assembly Nozzle Insulator Liner... - Page 10 GENERAL DESCRIPTION MAGNUM® PR0 CURVE 400 400 AMPS AT 60% DUTY CYCLE WITH CO 400 AMPS AT 50% DUTY CYCLE WITH MIXED GAS Description Contact Tips Product Cable Wire Size Heavy Diffuser Cable Gun Tube Feeder** Number Length(m) in. (mm) Duty Assembly Nozzle...
- Page 11 GENERAL DESCRIPTION MAGNUM® PRO CURVE 400 SHORT NECK 400 AMPS AT 50% DUTY CYCLE WITH CO 400 AMPS AT 40% DUTY CYCLE WITH MIXED GAS Description Contact Tips Product Cable Wire Size Standard Diffuser Cable Gun Tube Number Length (m) in.
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Page 12: Installation
INSTALLATION Read this entire installation section before you K466-2 INSTALLATION (For Tweco Adapted Feeders) start installation. SAFETY PRECAUTIONS a. Remove brass cable connector (see Figure 1) from the K466-2 kit and screw it onto the feeder end of WARNING the gun cable. Tighten the connection with the wrench provided. -
Page 13: Liner Installation
INSTALLATION c. For L-Tec machines that require trigger lead con- c. Insert a new untrimmed liner into the connector end of the cable. Be sure the liner bushing is stenciled nections to be made at a terminal strip located with- appropriately for the wire size being used. -
Page 14: Contact Tip And Gas Nozzle Installation
INSTALLATION CAUTION against the cable liner using the Allen wrench pro- vided. (Set Screw not required on K2951, K2952 and K3055 Models). Overtightening will split or collapse the liner and cause poor wire feeding. This screw should only be gently tightened. ------------------------------------------------------------------------ 6. -
Page 15: Connection To Lincoln Feeders
INSTALLATION b. Fully push the brass connector end of the gun and CONNECTION TO LINCOLN FEEDERS cable into the connector receptacle on the outgoing side of the feeder wire drive. Tighten the hand Gun cable assemblies which were assembled with a screw to clamp down on the connector. -
Page 16: Connection To 10 Series Feeders
INSTALLATION SWITCH RATINGS c. Insert the control cable plug from the feeder trigger circuit into the mating socket on the gun cable con- The rating of the trigger switch is 50 Volts, 1 Ampere. 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... -
Page 17: Operation
OPERATION ELECTRODES AND EqUIPMENT a. Check that the welding power source is on and that the shielding gas supply is set for the proper flow The MAGNUM® & MAGNUM® PRO CURVE 300 and rate. 400 guns and cables have been designed for use with Lincoln L-50 and L-56, solid steel wire electrodes b. -
Page 18: Maintenance
MAINTENANCE REMOVAL, INSTALLATION AND TRIMMING NOTE: Small set screw in the diffuser must be loos- INSTRUCTIONS FOR MAGNUM® LINERS ened, otherwise liner could be damaged when attempting to remove gun tube. Pull gun tube out from gun handle. To reinstall, insert the gun tube, NOTE: The variation in cable lengths prevents the push in as far as possible and retighten screws. - Page 19 MAINTENANCE CABLE CONTROL LEAD INNER TUBE COPPER STRANDING CONTROL LEAD 1.65 (41.9 mm) Figure 2 SKIN f. Cut off the damaged section of cable and strip off Assemble gun tube connector to cable by forcing the outer jacket as shown in Figure 2. Be careful not the steel tube of the connector into the inside diam- eter of the cable inner tube until the copper strands to cut the insulation on the control wires while strip-...
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Page 20: Wire Feeder End Repair
MAINTENANCE NOTE: In order to remove the cable handle nut, the h. Pull the cut-off lead terminals off the trigger assem- tail of the connector cover must be depressed and bly and connect the replacement control lead termi- the cable handle nut rotated 1/4 turn counterclock- nals. - Page 21 MAINTENANCE 4.68 (119 mm) PRESS HERE TO CONNECTOR COVER GAS PLUG REMOVE THE CABLE OR FITTING HANDLE NUT FEEDER END CONNECTOR CABLE BOOT CABLE CABLE HANDLE STRAIN RELIEF HOUSING TAIL PIECE STRAIN RELIEF .43 (11 mm) MAX. INCOMING CONNECTOR Figure 5 f.
- Page 22 MAINTENANCE THREAD SIzES FOR MAGNUM® 300 & 400 CONSUMABLES THREAD SIzES FOR MAGNUM® PRO CURVE 300 & 400 CONSUMABLES 1/2 - 20 1/4 - 20 MAGNUM® & MAGNUM® PRO CURVE GUNS...
- Page 23 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.
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Page 24: Troubleshooting
TROUBLESHOOTING Observe all Safety Guidelines detailed throughout this manual PROBLEMS POSSIBLE (SYMPTOMS) CAUSE RECOMMENDED PROBLEMS COURSE OF ACTION Drive rolls turn, but wire will not 1. Gun cable kinked and/or twisted. 1. Keep as straight as possible. feed or wire feeding is rough. Inspect cable and replace if necessary. - Page 25 TROUBLESHOOTING Observe all Safety Guidelines detailed throughout this manual PROBLEMS POSSIBLE (SYMPTOMS) CAUSE RECOMMENDED PROBLEMS COURSE OF ACTION Poor arc striking with sticking or 1. Improper procedures or 1. See “Gas Metal Arc Welding “blast-offs”, weld porosity, narrow techniques. Guide” (GS100). and ropy looking bead, or electrode stubbing into plate while welding.
- Page 26 WARNING Do not touch electrically live parts or Keep flammable materials away. Wear eye, ear and body protection. electrode with skin or wet clothing. Insulate yourself from work and AVISO DE ground. Spanish PRECAUCION No toque las partes o los electrodos Mantenga el material combustible Protéjase los ojos, los oídos y el bajo carga con la piel o ropa moja-...
- Page 27 WARNING Keep your head out of fumes. Turn power off before servicing. Do not operate with panel open or Use ventilation or exhaust to guards off. remove fumes from breathing zone. AVISO DE Spanish PRECAUCION Los humos fuera de la zona de res- Desconectar el cable de ali- No operar con panel abierto o piración.
- Page 28 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 guarantee such advice, and assumes no liability, with respect to such information or advice.