Lincoln Electric MAGNUM 350 User Manual
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Lincoln Electric MAGNUM 350 User Manual

Lincoln Electric MAGNUM 350 User Manual

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RETURN TO MAIN MENU
IM990
™
MAGNUM PRO 350 and 550 FUME GUNS
October, 2008
TYPE: K2649-1, K2650-1
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 opera-
tion on your part. DO
NOT
INSTALL, OPERATE OR REPAIR
THIS EQUIPMENT WITHOUT
READING THIS MANUAL AND
THE SAFETY PRECAUTIONS
CONTAINED
THROUGHOUT.
And, most importantly, think before
you act and be careful.
OPERATORʼS MANUAL
Copyright © Lincoln Global Inc.
• 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

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  • Page 1 RETURN TO MAIN MENU IM990 ™ MAGNUM PRO 350 and 550 FUME GUNS October, 2008 TYPE: K2649-1, K2650-1 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 ...

  • Page 2: California Proposition 65 Warnings

    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.

  • Page 3: Electric Shock Can Kill

    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.
  • Page 4 WELDING and CUTTING SPARKS can 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 materials from welding can easily go through small cracks and openings to adjacent areas.
  • Page 5 PRÉCAUTIONS DE SÛRETÉ Pour votre propre protection lire et observer toutes les instructions et les précautions de sûreté specifiques qui parraissent dans ce manuel aussi bien que les précautions de sûreté générales suiv- antes: Sûreté Pour Soudage A LʼArc 1. Protegez-vous contre la secousse électrique: a.
  • Page 6 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.

  • Page 7: Table Of Contents

    Installation ...Section A Technical Specifications ...A-1 Unpacking the Spool Gun ...A-2 Fume Gun Familiarization ...A-2 Assembly of Fume Gun Internal Parts...A-2, A-3 Safety Precautions ...A-3 Compatibility of Welding Machines and Wire Feeders ...A-3 Preparing the Fume Gun for Welding ...A-3 Select and Install a Wire Feeder Connection K Kit ...A-4 Select and Install Gun Consumable Parts ...A-5 Connect the Gun to the Wire Feeder...A-6...

  • Page 8: Installation

    TECHNICAL SPECIFICATIONS - MAGNUM PRO FUME GUNS GMAW (MIG), FCAW (also FCAW-SS), and FCAW-GS on ferrous base metals. Lincoln Super Arc, Super Glide, Innershield, and Outershield brand products. MAXIMUM WIRE SIZES (DIAMETERS) BY WELDING PROCESSES K2649-1: 1/16 inch cored wire, FCAW and FCAW-GS K2650-1: 3/32 inch cored wire, FCAW and FCAW-GS RATED WELDING CURRENT AND DUTY CYCLE (10-MINUTE BASIS) K2650-1: 550 amps at 100%, FCAW and FCAW-GS...

  • Page 9: Fume Gun Familiarization

    UNPACKING THE FUME GUN Fume guns are factory-assembled and tested. Both gun models are shipped with a FCAW fume collection nozzle installed. Contact tips for 0.045 and 3/32” Diameter Wire are also installed on the 350 and 550 models, respectively. After opening the packaging, check that it contains 1 fully assembled fume gun, 1 GMAW fume collection nozzle, and 1 instruction man- ual (IM990).

  • Page 10: Safety Precautions

    6. Split Y connector halves allow the gunʼs feeder end to be easily serviced. 7. Modular trigger terminal housing. May be easily changed to dual-procedure (DP) harness. 8. Incoming connector assembly accepts existing wire feeder connection K kits for Magnum 300, 400, and 550 guns.

  • Page 11: Select And Install A Wire Feeder Connection K Kit

    LN-7, LN-8, & LN-9 series; LN-25 (0.052 max.); LN-742 LN-7, LN-8, & LN-9 series; LN-25 (1/16 min.); LN-742 LF-72, LN-74 Lincoln Electric Series 10 feeders; LN-15; PF-10M; PF-15M Power MIG & Wirematic series feeders LN-7, LN-8, & LN-9 series (0.052 max.) LN-8, &...

  • Page 12: Select And Install Gun Consumable Parts

    SELECT AND INSTALL GUN CONSUMABLE PARTS 1. LINER ASSEMBLY KP Nos. for Gun Model Wire Diameter 350 amp 0.035 KP44-3545-15 0.045 KP44-3545-15 0.052 KP44-116-15 1/16 KP44-116-15 5/64 none 3/32 none Note that the Magnum Pro 350 and 550 amp fume guns use the same liner assemblies as the Magnum 300 and 550 MIG gun products, respectively.

  • Page 13: Connect The Gun To The Wire Feeder

    5. REMOVING THE FUME TUBE ASSEMBLY (See figure A.7) Figure A.7 • Loosen locking collar (counter clockwise, right-hand threads) on fume tube. Gas diffuser may remain in place. • Slide the fume tube out of the gun handle. • Slide the fume tube off of the gun tube. •...

  • Page 14: Operation

    SAFETY PRECAUTIONS Read and understand this entire section before operat- ing the machine. WARNING ELECTRIC SHOCK can kill. • Do not touch electrically live parts or electrode with skin or wet cloth- ing. • Insulate yourself from work and ground. •...

  • Page 15: Selecting Or Changing The Trigger Position

    SELECTING OR CHANGING THE TRIGGER POSITION (See Figure B.1) 1. Trigger-down position shown. 2. Loosen Locking Collar (counter clockwise, right- hand threads on fune tube. 3, Hold fume tube stationary. Rotate handle Counter- clockwise (counter clockwise). MAGNUM™ PRO 350 and 550 FUME GUNS OPERATION FIGURE B.1 4.

  • Page 16: Prepare The Fume Gun For Welding

    PREPARE THE FUME GUN FOR WELDING (Also See Installation Section) • Read all safety information in this Instruction Manual. • Verify that input power to the machine and the wire feeder is disconnected. LOAD SPECIFIED WIRE INTO THE 1. Refer to welding wire literature for proper machine and feeder settings and proper usage.

  • Page 17: Accessories

    ACCESSORIES ACCESSORIES OR OPTIONS • Optional dual-procedure switch and modular trigger connection to wire feeder. • Spoiler: An optional ergonomic hand grip. MAGNUM™ PRO 350 and 550 FUME GUNS...

  • Page 18: Maintenance

    RECOMMENDED TOOLS • Adjustable-jaw pliers • Welding pliers (optional) • 7/16 inch open-end wrench (gas diffuser, gas plug or fitting, gun tube wrench flats) • 1-1/8 inch open-end wrench (incoming connector) • 9/64 inch allen wrench (handle screws) • 5/64 inch allen wrench (liner set screw) •...

  • Page 19: Trigger And Accessory Switch Lead Routings

    TRIGGER ACCESSORY SWITCH LEAD ROUTINGS (Gun Handle, See Figure D.1) • Route the trigger (red and white) and accessory (blue and black) leads following the steps shown below. Proper routing: • Provides adequate slack so that the handle can rotate to its trigger-up or trigger-down positions without damaging or disconnecting the leads.

  • Page 20: Gun Tube Replacement

    GUN TUBE REPLACEMENT • Replace if worn from use; for example, if gas diffuser threads are deforming. 1. Remove consumables per this section, Gas Diffuser Replacement. 2. Remove swivel assembly at rear of handle (ccw, right-hand threads), remove fume tubeʼs locking collar from handle, and remove left side of handle.
  • Page 21 6. Remove the two trigger terminals from the modular trigger terminal housing. 7. Remove the incoming connector assembly (see Item 8 Figure A.4, Installation Section) from the gun cable. 8. Remove the damaged gun cable by sliding it rear- ward from the vacuum hose. 9.

  • Page 22: Troubleshooting

    HOW TO USE TROUBLESHOOTING GUIDE 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.

  • Page 23: Troubleshooting

    Observe all Safety Guidelines detailed throughout this manual PROBLEMS (SYMPTOMS) No wire feed occurs when trigger is pulled Sluggish wire feed when trigger is pulled 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.
  • Page 24 Observe all Safety Guidelines detailed throughout this manual PROBLEMS (SYMPTOMS) Intermittent wire feed when trigger is pulled. Poor fume extraction. Frequent occurrence of contact tip burn- back. 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.
  • Page 25 Observe all Safety Guidelines detailed througout this manual PROBLEMS (SYMPTOMS) Frequent occurrence of contact tip burnback. Poor weld bead appearance (porosi- ty or dull gray oxidized surface). 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.
  • Page 26 Observe all Safety Guidelines detailed throughout this manual PROBLEMS (SYMPTOMS) Low or no shielding gas flow. Wire feeder runs or begins feeding wire without pulling the gun trigger. 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.
  • Page 27 NOTES MAGNUM™ PRO 350 and 550 FUME GUNS...
  • Page 28 NOTES MAGNUM™ PRO 350 and 550 FUME GUNS...
  • Page 29 WARNING Spanish AVISO DE PRECAUCION French ATTENTION German WARNUNG Portuguese ATENÇÃO Japanese Chinese Korean Arabic...
  • Page 30 Spanish PRECAUCION French German Portuguese Japanese Chinese Korean Arabic WARNING AVISO DE ATTENTION WARNUNG ATENÇÃO...
  • Page 31 • 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...

This manual is also suitable for:

Magnum 550Magnum pro 350Magnum pro 550K2649-1K2650-1

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