Lincoln Electric LN-25X Operator's Manual
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Lincoln Electric LN-25X Operator's Manual

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Operator's Manual
LN-25X
Register your machine:
www.lincolnelectric.com/register
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www.lincolnelectric.com/locator
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Date Purchased
Code: (ex: 10859)
Serial: (ex: U1060512345)
IM10532-A
| Issue D ate May-19
© Lincoln Global, Inc. All Rights Reserved.
™
For use with machines having Code Numbers:
12869, 12870, 12871, 12872

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Summary of Contents for Lincoln Electric LN-25X

  • Page 1 Operator’s Manual LN-25X ™ For use with machines having Code Numbers: 12869, 12870, 12871, 12872 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) IM10532-A | Issue D ate May-19...
  • 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: Section A: Warnings

    W117.2-1974. A Free copy of “Arc Welding Safety” booklet E205 is available from the Lincoln Electric Company, 2.d. All welders should use the following procedures in order to minimize exposure to EMF fields from the welding circuit: 22801 St.
  • Page 4 SAFETY 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 SAFETY 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.
  • Page 6 TABLE OF CONTENTS LN-25X™...

  • Page 7: General Description

    CrossLinc™ and True Voltage Technology™ (TVT™). The 60%. Duty cycle is based upon the amount of welding LN-25X is able to use 12” spools. The Extra Torque model performed in a 10 minute period. features additional torque gearing for reliable feeding of large •...

  • Page 8: Technical Specifications

    Gun Bushing Shipped Description Meters Gun Bushing Installed Included Loose K4267-1 LN-25X™ DIGITAL ---- K1500-2 K1500-1 LN-25X™ W/O FLOW METER K4267-2 (TWECO®) LN-25X™ W/ FLOW METER K4267-3 (TWECO®) LN-25X™ CE K4267-4 (TWIST MATE/DINSE) LN-25X™ EXTRA TORQUE K4267-5 (TWECO®) INPUT - SINGLE PHASE...

  • Page 9: Installation

    Do not operate the wire feeder on an angled surface of more than 15 degrees. Do not submerge the LN-25X™. The LN-25X™ is rated IP23 and is suitable for outdoor use. The handle of the LN-25X™ is intended for moving the wire feeder about the work place only.
  • Page 10 LN-25X™ INSTALLATION across tHe arc set-Up WitH crosslinc™ (recoMMenDeD) Item K# Description K4267-2, K4267-3, LN-25X™ K4267-4, K4267-5 Place the power source Remote/Local switch in the Remote KP1695-xx Drive Roll Kit position. KP1696-xx KP1697-xx See Magnum PRO Welding Gun Literature Flextec 350X ™, 500X, 650X or ®...
  • Page 11 LN-25X™ INSTALLATION CV Power Sources with Stud Connectors and no Remote/Local Switch Item K# Description K4267-2, K4267-3, LN-25X™ K4267-4, K4267-5 KP1695-xx Drive Roll Kit KP1696-xx KP1697-xx See Magnum PRO Welding Gun Literature CV power source Electrode Cables Work Cable and Ground Clamp...
  • Page 12 LN-25X™ INSTALLATION recoMMenDeD electroDe anD WorK caBle siZes For arc WelDinG (See Table A.1) Tabulated below are copper cable sizes recommended for different currents and duty cycles. Lengths stipulated are the distance from the welder to work and back to the welder again.

  • Page 13: Trigger Connector

    LN-25X™ INSTALLATION triGGer connector There is one circular connector for the gun trigger on the front of the LN-25X™ Picture Function Wiring 15 VOLT SUPPLY NOT USED 5 PIN TRIGGER CONNECTOR FOR TRIGGER PUSH-ONLY GUNS. 83% WFS SWITCH 15 VOLT SUPPLY WARNING ELECTRIC SHOCK CAN KILL.
  • Page 14 LN-25X™ INSTALLATION cHanGinG tHe GUn aDapter BUsHinG WARNING ELECTRIC SHOCK CAN KILL. • Turn the input power OFF at the welding power source before installation or changing drive rolls and/or guides. • Do not touch electrically live parts. • When inching with the gun trigger, electrode and drive mechanism are "hot"...
  • Page 15 LN-25X™ INSTALLATION proceDUre to install Drive rolls anD pressUre arM aDjUstMent Wire GUiDes WARNING WARNING ELECTRIC SHOCK CAN KILL. ELECTRIC SHOCK CAN KILL. • Turn the input power OFF at the welding • Turn the input power OFF at the welding power source power source before installation or before installation or changing drive rolls and/or guides.

  • Page 16: Shielding Gas Connection

    Shut off shielding gas supply when not in use. • See American National Standard The LN-25X™ comes with a K1500-2 gun adapter installed. To Z-49.1, "Safety in Welding and install a gun, Cutting” Published by the American Welding Society. 1. Turn power OFF.

  • Page 17: Operation

    Observe additional Safety Guidelines detailed in the beginning of this manual. SAFETY PRECAUTIONS The serviceability of a product or structure utilizing the LN-25X™ wirefeeder is and must be the sole responsibility of the WARNING builder/user. Many variables beyond the control of The Lincoln Electric Company affect the results obtained in using the LN- ELECTRIC SHOCK can kill.

  • Page 18: Case Front Controls

    LN-25X™ OPERATION Wire Feed Speed Digital Display The LN-25X™ has a digital display that shows the wire feed speed. This display is also capable of displaying amperage and case Front controls the setup menu. Wire Feed Speed Knob Use the Wire Feed Speed Knob to set the rate of wire feed speed.
  • Page 19 True Voltage Technology (TVT) When the TVT LED is illuminated, the CrossLinc™ enabled power source is compensating for the voltage dropped across the electrode in between the power source and LN-25X™. CrossLinc™ LED The CrossLinc™ LED displays whether the feeder is connected to the power source.
  • Page 20 LN-25X™ OPERATION DiGital Meter operation During Welding The value in the left display will be either amps or actual wire feed CrossLinc™ speed, depending upon the selection chosen in the set-up menu. When connected to a power source that supports CrossLinc™, the The corresponding LED below the display will light.

  • Page 21: Setup Menu Operation

    MenU operation The left display will show the menu item, and the right display will The LN-25X™ setup menu is accessed through the hidden setup show the set value. menu push button that is located below a small hole just right of the right 4 digit display.
  • Page 22 LN-25X™ OPERATION Left Right Factory Setup Menu Item Description Display Display Default Changes the display of wire feed speed between inches per Wire feed speed units US / Euro minute (US) and meters per minute (Euro) The preflow timer range is OFF to 10 seconds. Preflow time is the time delay from when the trigger is pulled to when the OFF / 0.10 -...
  • Page 23 LN-25X™ OPERATION Left Right Factory Setup Menu Item Description Display Display Default This is used to calibrate the wfs meter to a known calibrated wfs meter. To calibrate the wire feed speed, before entering the set-up menu: • Set the display to the desired wire feed speed...

  • Page 24: Constant Current Operation

    4. Determine the vertical line representing the CC Wire Feed Speed setting where the above two lines cross. (See Figure B.4 arrow line for 450.) Set the LN-25X™ wire feed speed knob to this value. CC WFS dial setting = desired WFS x 35...
  • Page 25 For these reasons, Lincoln Electric does NOT recommend constant current semiautomatic welding for applications which need to Most semiautomatic welding processes perform better using meet specified weld metal chemical or mechanical property constant voltage power sources.

  • Page 26: Internal Controls

    LN-25X™ OPERATION internal controls Item Description 2 Step/Trigger Interlock Switch (not present on K2613-3 and K2613-4) Pressure Adjustment Knob Spool Retainer Spindle Brake Gun Bushing Thumb Screw Socket Head Cap Screw for Gun Bushing Drive Hubs Inlet Wire Guide 10 Cold Feed Pushbutton...
  • Page 27 LN-25X™ OPERATION Internal Controls Description 2 Step - Trigger Interlock Switch The 2 Step - Trigger Interlock switch changes the function of the gun trigger. 2 Step trigger operation turns welding TRIGGER on and off in direct response to the INTERLOCK trigger.

  • Page 28: Rear Controls

    LN-25X™ OPERATION rear controls Gas Purge Pushbutton The gas solenoid valve will energize but neither the power source output nor the drive motor will be turned on. The Gas Purge switch is useful for setting the proper flow rate of shielding gas.
  • Page 29 LN-25X™ ACCESSORIES OPTIONS/ACCESSORIES The following options/accessories are available for your LN-25X™ from your local Lincoln Electric Distributor. DRIVE ROLL KITS, 2 ROLL DRIVE Steel Wire Drive Roll Kits KP1696-030S .023-.030 (0.6-0.8MM) KP1696-035S .035 (0.9MM) KP1696-045S .045 (1.2MM) INCLUDES: KP1696-052S .052 (1.4MM) 2 V GROOVE DRIVE ROLLS AND INNER WIRE GUIDE.

  • Page 30: Optional Kits & Accessories

    LN-25X™ ACCESSORIES Optional Kits & Accessories K910-1 & K910-2 Work Clamp Jaws open full 2-1/2 inches (63 K2596-2 mm). Welding cable lug bolts Polycarbonate Portable Feeder Case directly to the work clamp. 60% Replace a damaged case without duty cycle. Select K910-1 for replacing the entire unit.
  • Page 31 LN-25X™ ACCESSORIES K489-7 Gun Receiver Bushing for Lincoln Fast-Mate guns.) Includes: Gun receiver bushing with trigger connector. K435 Spindle Adapter, for mounting 14 lb. (6.4 kg) Innershield Coils on 2 in (51 mm) spindles. Includes: Spindle Adapter made from 2 coil retainers.

  • Page 32: Routine Maintenance

    6. Orient the LN-25X™in a vertical position. 7. Turn power ON. 8. Adjust the flow meter on the LN-25X™to 40 scfh while pressing the GAS PURGE button. 9. Measure the gas flow with the calibrated flow meter while roUtine Maintenance pressing the GAS PURGE button.

  • Page 33: Troubleshooting

    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.
  • Page 34 LN-25X™ TROUBLESHOOTING Observe all Safety Guidelines detailed throughout this manual POSSIBLE CAUSE RECOMMENDED COURSE OF ACTION PROBLEM Err 81 Motor overload, long The wire drive motor has 1. Check that the electrode slides easily through the gun and cable. term overheated.
  • Page 35 LN-25X™ PROBLEM POSSIBLE CAUSE RECOMMENDED COURSE OF ACTION Inconsistent wire feeding or 6. Improper gun liner, tip, drive 6. Verify the proper parts are installed. wire not feeding but drive rolls and/or inner wire guide. 7. Adjust the tension arm per the Instruction Manual. Most electrodes rolls turning.
  • Page 36 LN-25X™ DIAGRAMS...
  • Page 37 LN-25X™ DIAGRAMS 23.17 14.81...
  • Page 38 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 39 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 40 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.

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