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Operator's Manual
POWER MIG
Register your machine:
www.lincolnelectric.com/register
Authorized Service and Distributor Locator:
www.lincolnelectric.com/locator
Save for future reference
Date Purchased
Code:
(ex: 10859)
Serial:
(ex: U1060512345)
IM10105
| Issue D ate 12-Sep
© Lincoln Global, Inc. All Rights Reserved.
350MP
®
For use with machines having Code Numbers:
11827

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   Summary of Contents for Lincoln Electric 350MP

  • Page 1

    Operator’s Manual POWER MIG 350MP ® For use with machines having Code Numbers: 11827 Register your machine: www.lincolnelectric.com/register Authorized Service and Distributor Locator: www.lincolnelectric.com/locator Save for future reference Date Purchased Code: (ex: 10859) Serial: (ex: U1060512345) IM10105 | Issue D ate 12-Sep...

  • Page 2

    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.

  • Page 3: Electric Shock Can Kill

    SAFETY ARC RAYS can burn. ELECTRIC SHOCK can 4.a. Use a shield with the proper filter and cover kill. plates to protect your eyes from sparks and 3.a. The electrode and work (or ground) circuits the rays of the arc when welding or observing are electrically “hot”...

  • Page 4

    SAFETY WELDING and CUTTING CYLINDER may explode SPARKS can if damaged. cause fire or explosion. 7.a. Use only compressed gas cylinders 6.a. Remove fire hazards from the welding area. containing the correct shielding gas for the If this is not possible, cover them to prevent process used and properly operating the welding sparks from starting a fire.

  • Page 5

    SAFETY 5. Toujours porter des lunettes de sécurité dans la zone de PRÉCAUTIONS DE SÛRETÉ soudage. Utiliser des lunettes avec écrans lateraux dans les zones où lʼon pique le laitier. Pour votre propre protection lire et observer toutes les instructions et les précautions de sûreté...

  • Page 6

    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.

  • Page 7: Table Of Contents

    Push / Pull Gun Wire Feeder Troubleshooting ............E-7 thru E-10 ________________________________________________________________________________ Diagrams..........................Section F Wiring Diagrams and Dimension Print ................F-1, F-2 ________________________________________________________________________________ Parts Manual ........................Appendix POWER MIG ® 350MP Parts Pages ..............P-512 Series Magnum 300 & 400 GMAW Gun, Connector Assembly ........P-202-C Series ________________________________________________________________________________...

  • Page 8: Installation

    INSTALLATION TECHNICAL SPECIFICATIONS – POWER MIG 350MP ® INPUT – SINGLE PHASE ONLY Standard Voltage/Frequency Input Current @ 230Amp Rated Output Input Current @ 300 Amp Rated Output 208/230/460/575/50/60 Hz 50/48/25/20 Amps 76/64/37/29 Amps RATED OUTPUT Input Voltage/Frequency Hz Duty Cycle...

  • Page 9: Safety Precautions

    2. The POWER MIG 350MP is supplied connected ® for 230 Volt Input. If the welder is to be operated on WELDING SPARKS another voltage, it must be reconnected according cause fire or explosion.

  • Page 10: Auxiliary Power Receptacles

    FIGURE A.1 — Triple Voltage Machine Input Connections AUXILIARY POWER RECEPTACLES 3. The POWER MIG ® 350MP is shipped with a 10ft.(3.05m) input cable and plug connected to the welder. Using the instructions in Figure A.2, have a (15 Amp, 120 Volt Receptacle) The receptacle is UL qualified electrician connect the receptacle or cable and CSA approved.

  • Page 11: Gun And Cable Installation

    Install shielding gas supply as follows: Remove burrs. 1. Set gas cylinder on rear platform of POWER MIG ® 350MP. Hook chain in place to secure cylinder to 7. Install insulator and secure the gas diffuser into the rear of welder. tube.

  • Page 12: Installing Tig Torch

    Oil or grease in the The POWER MIG ® 350MP is programmed to allow it presence of high pressure oxygen is explosive. to be used as a DC TIG welder. The following infor- mation addresses the installation of an air-cooled TIG 3.

  • Page 13

    GAS SUPPLY CONNECTION WORK PIECE FOOT AMPTROL (OPTIONAL) TO REMOTE CONTROL RECEPTACLE CONNECTOR TO GAS SUPPLY HOSE FIGURE A.5 GAS REGULATOR GAS CYLINDER SPOOL GUN AND TIG TORCH GAS CONNECTION GAS LINE FROM CYLINDER AND REGULATOR POWER MIG 350MP ®...

  • Page 14: Operation

    OPERATION Read entire Operation section before COMMON WELDING ABBREVIA- operating the POWER MIG ® 350MP. TIONS WARNING ELECTRIC SHOCK can kill. • Wire Feed Speed • Do not touch electrically live parts or electrode with skin or wet clothing. Insulate yourself •...

  • Page 15: Product Description

    Other features Optional kits are available for push-pull welding, spool The POWER MIG ® 350MP is a complete semiauto- gun operation, push feeding of 3/64 aluminum with the matic multi-process DC arc welding machine offering standard POWER MIG 350MP gun and wire feeder.

  • Page 16

    The most commonly used modes are dis- played in the chart on the right half of the Multi- 3. OUTPUT CONTROLS - The POWER MIG ® 350MP has 2 Process Panel. encoder knobs to adjust weld parameters. If the LED next to a weld parameter (Preflow/Postflow, •...

  • Page 17: Setting And Configuring The Power Mig 350mp For Welding

    • Check that the electrode polarity is correct for the process and turn the Power Switch to the "ON" position. After the "boot-up" period (approximately 20 seconds), the POWER 350MP will default to the last preset weld mode that ® was active when the machine was powered down. The Multi-Process Panel defaults with the "Weld Mode"...

  • Page 18: Multi-process Panel Functions

    • Postflow can be adjusted from 0 to 10.0 seconds in 0.1 The way to know what information needs to be entered is to second increments. look for flashing LEDʼs. If an LED is flashing that parameter value needs to be entered. POWER MIG ® 350MP...

  • Page 19

    POWER MIG ® 350MP...

  • Page 20: Wire Drive Roll

    • The Crater function offers the ability to set an endpoint for The drive rolls installed with the POWER MIG ® 350MP have WFS and Voltage that will be reached over a specified two grooves, one groove for .035" (0.9mm) solid steel elec- time period.

  • Page 21: Procedure For Changing Drive And Idle Roll Sets

    Adjust pressure as necessary. TO MOUNT 10 to 44 Lb. (4.5-20 kg) SPOOLS WIRE REEL LOADING - READI-REELS, (12"/350MP mm Diameter) or 14Lb.(6 Kg) Innershield SPOOLS OR COILS Coils: To Mount a 30 Lb. (14 kg) Readi-Reel Package (For 13-14 lb.

  • Page 22: Feeding Wire Electrode

    "hot" to work and ground and could remain energized several sec- 4. Remove the welding gun from the wire drive. onds after the gun trigger is released. • Only qualified personnel should perform mainte- nance work. ----------------------------------------------------------- POWER MIG 350MP ®...

  • Page 23: Avoiding Wire Feeding Problems

    B-10 OPERATION B-10 5. Loosen the socket head cap screw that holds the AVOIDING WIRE FEEDING connector bar against the gun bushing. PROBLEMS Important: Do not attempt to completely remove the socket head cap screw. Wire feeding problems can be avoided by observing the following gun handling procedures: 6.

  • Page 24: Special Welding Processes Available

    AVAILABLE ON THE POWER MIG ® ing or eliminating their disadvantages. Unlike short cir- 350MP cuit, pulsed MIG does not create spatter or run the risk of cold lapping. The welding positions in pulsed MIG are not limited as they are with globular or spray and its PULSE WELDING (GMAW-P) wire use is definitely more efficient.

  • Page 25

    BENEFITS OF PULSE ON PULSE FROM arc. Such pulses are shown in Figure B.6. After a LINCOLN ELECTRIC number "N" of such pulses, depending on the wire feed speed used, an identical number "N" of low ener- gy pulses are performed.

  • Page 26: Power Mode

    5. START can be set by using the SELECT toggle. Use the WFS/AMPS Control to set the respective start current. • For steel, use 75/25 Ar/CO shield gas. • For Stainless, select a Helium blend Tri-Mix. • For Aluminum, use 100% Ar. POWER MIG 350MP ®...

  • Page 27: Accessories

    ® Aluminum 3/64” (1.2 mm) KP1695-3/64A 350MP provides gun trigger switch transfer between the .035 Aluminum recommended for Push-Pull systems only. Magnum gun or the spool gun for the same polarity weld- ing with different wire and gas processes. 3/64" (1.2 mm) ALUMINUM...

  • Page 28

    WFS can only be changed at the spool gun. • The left Display (WFS / AMPS) on the POWER PUSH-PULL TORCHES 350MP will have 4 dashes (----) to indi- ® cate that the left control knob on the power Torch Part No.

  • Page 29: Maintenance

    Different length fixed nozzles are also In extremely dusty locations, dirt may clog the air pas- available to fit 350MP and 400 amp gun tubes to sages causing the welder to run hot. Blow dirt out of allow either spray or short-circuiting transfer weld- the welder with low-pressure air at regular intervals to ing.

  • Page 30: Liner Removal And Replacement

    (SEE FIGURE D.1) LINER REMOVAL, INSTALLATION AND TRIMMING INSTRUCTIONS FOR MAGNUM 350MP NOTE: The variation in cable lengths prevents the interchangeability of liners between guns. Once a liner has been cut for a particular gun, it should not be installed in another gun unless it can meet the liner cutoff length requirement.

  • Page 31

    TROUBLESHOOTING 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.

  • Page 32: Troubleshooting

    CAUSE COURSE OF ACTION (SYMPTOMS) 1. Contact your local authorized Major physical or electrical damage Lincoln Electric Field Service is evident when the sheet metal covers are removed. facility for technical assistance. 1. Make certain that the fuses or Input fuses keep blowing, or input breakers are properly sized.

  • Page 33: Troubleshooting

    CAUTION If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your LOCAL AUTHORIZED LINCOLN ELECTRIC FIELD SERVICE FACILITY for assistance before you proceed. POWER MIG ®...

  • Page 34

    5. Check spindle for ease of rotation. CAUTION If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your LOCAL AUTHORIZED LINCOLN ELECTRIC FIELD SERVICE FACILITY for assistance before you proceed. POWER MIG ®...

  • Page 35

    CAUTION If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your LOCAL AUTHORIZED LINCOLN ELECTRIC FIELD SERVICE FACILITY for assistance before you proceed. POWER MIG 350MP ®...

  • Page 36: Fault Codes

    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. POWER MIG 350MP ®...

  • Page 37

    4. Slow down wire feed speed while pushing wire up through the liner. Recommended setting = 350MP ipm. 5. Clean or replace contact tip. 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.

  • Page 38

    Authorized Field Service Facility. Number Adjustment) Arc length varies while welding (arc 1. POWER MIG ® 350MP drive rolls length is not constant). set too tight. The tension arm should be set at 1 to 1-1/2. 2. Check to see that the spindle brake is not set too tight.

  • Page 39

    There should be an aluminum spacer behind the spindle brake. Refer to the push-pull connection kit for this spacer. POWER MIG 350MP drive rolls set ® too tight. The tension arm should be set at 1 to 1-1/2. 3. Push-Pull torch drive rolls set too If all recommended possible areas tight.

  • Page 40

    7. The machine should automatically switch back to normal operation after it is done saving the SF number. POWER MIG ® 350MP “CLEAR ALL” PROCEDURE 1. Hold “select” switch up while powering up machine. 2. Release “select” switch when displays show “Pres sPin”.

  • Page 41

    WIRING DIAGRAMS POWER MIG 350MP ®...

  • Page 42

    DIMENSION PRINT POWER MIG 350MP ®...

  • Page 43

    NOTES POWER MIG 350MP ®...

  • Page 44

    NOTES POWER MIG ® 350MP...

  • Page 45

    Do not touch electrically live parts or Keep flammable materials away. Wear eye, ear and body protection. WARNING electrode with skin or wet clothing. Insulate yourself from work and ground. Spanish No toque las partes o los electrodos Mantenga el material combustible Protéjase los ojos, los oídos y el AVISO DE bajo carga con la piel o ropa moja-...

  • Page 46

    Keep your head out of fumes. Turn power off before servicing. Do not operate with panel open or WARNING Use ventilation or exhaust to guards off. remove fumes from breathing zone. Spanish Los humos fuera de la zona de res- Desconectar el cable de ali- No operar con panel abierto o AVISO DE...

  • Page 47

    • 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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