Page 2 - SAFETY; WARNING; CALIFORNIA PROPOSITION 65 WARNINGS; The Above For Diesel Engines
FOR ENGINEpowered equipment. 1.a. Turn the engine off before troubleshooting and maintenance work unless the maintenance work requires it to be running. ____________________________________________________ 1.b. Operate engines in open, well-ventilated areas or vent the engine exhaust fumes outdoors....
Page 3 - ii
ii SAFETY ii ARC RAYS can burn. 4.a. Use a shield with the proper filter and cover plates to protect your eyes from sparks andthe rays of the arc when welding or observingopen arc welding. Headshield and filter lensshould conform to ANSI Z87. I standards. 4.b. Use suitable clothing made from durable...
Page 4 - iii; Refer to
iii SAFETY iii FOR ELECTRICALLYpowered equipment. 8.a. Turn off input power using the disconnect switch at the fuse box before working onthe equipment. 8.b. Install equipment in accordance with the U.S. National Electrical Code, all local codes and the manufacturer’srecommendations. 8.c. Ground the ...
Page 5 - iv; PRÉCAUTIONS DE SÛRETÉ
iv SAFETY iv PRÉCAUTIONS DE SÛRETÉ Pour votre propre protection lire et observer toutes les instructionset les précautions de sûreté specifiques qui parraissent dans cemanuel aussi bien que les précautions de sûreté générales suiv-antes: Sûreté Pour Soudage A L’Arc 1. Protegez-vous contre la secouss...
Page 6 - Conformance; b) radio and television transmitters and receivers
v SAFETY v Electromagnetic Compatibility (EMC) Conformance Products displaying the CE mark are in conformity with European Community Council Directive of 15 Dec2004 on the approximation of the laws of the Member States relating to electromagnetic compatibility,2004/108/EC. It was manufactured in con...
Page 7 - uct standard for arc welding equipment.”
vi SAFETY vi Electromagnetic Compatibility (EMC) The size of the surrounding area to be considered will depend on the structure of the building and otheractivities that are taking place. The surrounding area may extend beyond the boundaries of the premises. Methods of Reducing Emissions Mains Supply...
Page 8 - Thank You; Please Examine Carton and Equipment For Damage Immediately
vii vii Thank You for selecting a QUALITY product by Lincoln Electric. We want you to take pride in operating this Lincoln Electric Company product••• as much pride as we have in bringing this product to you! Read this Operators Manual completely before attempting to use this equipment. Save this ma...
Page 9 - TAbLE OF CONTENTS
viii viii TAbLE OF CONTENTS Page –––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– Installation .......................................................................................................................Section A Technical Specifications ......................
Page 10 - INSTALLATION; TEMPERATURE RANGE; Inches 22.2 Inches 36 lbs; PHYSICAL DIMENSIONS; Extra torque; GMAW
A-1 INSTALLATION A-1 LN-25™ PRO TEMPERATURE RANGE OPERATION: -40°F to 104°F (-40°C to 40°C) STORAGE: -40°F to 185°F (-40°C to 85°C) INPUT VOLTAGE and CURRENT TECHNICAL SPECIFICATIONS – LN-25™ PRO (K2613-1, K2613-2) HEIGHT WIDTH DEPTH WEIGHT 14.8 Inches 8.7 Inches 22.2 Inches 36 lbs (376 mm) ( 221 mm...
Page 11 - WELD CAbLE SIzE; CABLE SIZES FOR COMBINED LENGTHS OF ELECTRODE AND WORK CABLES; SAFETY PRECAUTIONS
WELD CAbLE SIzE Table A.1 located below are copper cable sizes rec-ommended for different currents and duty cycles.Lengths stipulated are the distance from the welder towork and back to the welder again. Cable sizes areincreased for greater lengths primarily for the purposeof minimizing cable drop. ...
Page 12 - GND; ANALOG CONTROL CAbLE K1797-xx; he control cable connecting the wire feeder to the; POWER SOURCE
A-3 INSTALLATION LN-25 PRO A-3 A A B B K K H H N N L L C C D D M M G G F F E E J J I I A A B B K K H H N N L L C C D D M M G G F F E E J J I I Function unusedChassis GNDWelding Output Control (trigger from feeder)Welding Output Control(trigger from feeder)Remote Voltage Control ("+" supply, ...
Page 13 - SHIELDING GAS CONNECTION; CAbLE CONNECTIONS
A-4 INSTALLATION LN-25™ PRO A-4 SHIELDING GAS CONNECTION C Y L I N D E R m a y e x p l o d e i f damaged. • Keep cylinder upright and chained to support. • Keep cylinder away from areas where it may be damaged. • Never lift welder with cylinder attached.• Never allow welding electrode to touch cylin...
Page 14 - WIRE DRIVE CONFIGURATION
A-5 INSTALLATION LN-25™ PRO A-5 WIRE DRIVE CONFIGURATION (See Figure A.2) C H A N G I N G T H E G U N R E C E I V E RbUSHING ELECTRIC SHOCK can kill. • T u r n t h e i n p u t p o w e r O F F a t t h e welding power source before instal-lation or changing drive rolls and/orguides. • Do not touch ele...
Page 15 - PRESSURE ARM ADJUSTMENT
THUMBSCREW GUN A-6 INSTALLATION LN-25™ PRO A-6 PRESSURE ARM ADJUSTMENT ELECTRIC SHOCK can kill. • Turn the input power OFF at the weld- ing power source before installation orchanging drive rolls and/or guides. • Do not touch electrically live parts. • When inching with the gun trigger, electrode an...
Page 16 - ACROSS THE ARC SET-UPS; Power Sources with Stud Connectors and
A-7 INSTALLATION LN-25™ PRO A-7 ACROSS THE ARC SET-UPS CC Power Sources with Output Terminals AlwaysHot (See Figure A.5) If the power source has a Remote/Local switch, placethe switch in the Local position. Place the CV/CC switch in the feeder in the "CC" posi-tion. CV Power Sources with Stu...
Page 17 - Description
A-8 INSTALLATION LN-25™ PRO A-8 CV Power Sources with Stud Connectors and noRemote/Local Switch. (See Figure A.7) Place CV/CC switch in the feeder in the "CV" position. CV Power Source with Twist-Mate Connectors andRemote/Local Switch. (See Figure A.8) Place CV/CC switch in the feeder in the...
Page 19 - OPERATION
b-1 OPERATION LN-25™ PRO b-1 • ELECTRIC SHOCK CAN KILL. Unless using COLD FEED fea-ture, when feeding with gun trig-g e r , t h e e l e c t r o d e a n d d r i v emechanism are always electri-c a l l y e n e r g i z e d a n d c o u l dremain energized several sec-onds after the welding ceases.. • Do...
Page 20 - DEFINITION OF WELDING TERMS; GENERAL DESCRIPTION; RECOMMENDED PROCESSES
b-2 OPERATION b-2 LN-25™ PRO DEFINITION OF WELDING TERMS WFS • Wire Feed Speed CC • Constant Current CV • Constant Voltage GMAW • Gas Metal Arc welding SMAW • Shielded Metal Arc welding FCAW • Flux Core Arc Welding GENERAL DESCRIPTION General Physical Description The LN-25™ PRO is specially engineer...
Page 21 - Customer Assistance Policy; CASE FRONT CONTROLS; ITEM DESCRIPTION
b-3 OPERATION b-3 1. ANALOG VOLTMETER The analog voltmeter shows the voltage betweenelectrode and work. On across the arc models, thevoltmeter shows open circuit voltage when the wirefeeder is not welding. The voltmeter is polarityinsensitive and the range is 0 – 40VDC. (See Customer Assistance Poli...
Page 22 - ARC
Maximum WFS Standard Spin Gearing 280340440520600 Maximum WFS (Extra Torque Gearing) 210235400400400 Minimum Arc Volts 15 V17 V21 V24 V27 V b-4 OPERATION b-4 2. WIRE FEED SPEED KNOb The large, calibrated wire feed speed knob makesfor easy and accurate adjustment of the wire feedspeed. The knob rotat...
Page 23 - POLARDAD
b-5 OPERATION b-5 LN-25™ PRO 3. 5-PIN GUN TRIGGER CONNECTOR 4. WORK SENSE LEAD 5. THERMAL LED, MOTOR OVERLOAD The thermal light illuminates when thewire drive motor draws too much current.If the thermal light illuminates, the wiredrive will automatically shutdown for up to30 seconds to allow the mot...
Page 24 - INTERNAL CONTROLS
b-6 OPERATION b-6 INTERNAL CONTROLS LN-25™ PRO 1 2 Step Trigger Interlock Switch2 CV / CC Switch3 Pressure Adjustment Arm4 Optional Timer Kit (See Accessories Section)5 Spool Retainer 6 Spindle Brake7 Gun Bushing ITEM DESCRIPTION 1 9 8 7 6 3 2 8 Thumb Screw for securing the welding Gun9 Socket Head ...
Page 25 - INTERNAL CONTROLS DESCRIPTION; Step - Trigger Interlock Switch; COLD FEED PUSHbUTTON; CV; CAUTION
b-7 OPERATION b-7 INTERNAL CONTROLS DESCRIPTION (See Figure B.2) 2 Step - Trigger Interlock Switch T h e 2 S t e p - T r i g g e r I n t e r l o c kswitch changes the function of thegun trigger. 2 Step trigger opera-tion turns welding on and off ind i r e c t r e s p o n s e t o t h e t r i g g e r ...
Page 26 - CONSTANT CURRENT WIRE WELDING; For these reasons, Lincoln Electric does; NOT; Con sta nt Current; Current
b-8 OPERATION b-8 LN-25™ PRO CONSTANT CURRENT WIRE WELDING (See Figure B.3) Most semiautomatic welding processes perform betterusing constant voltage power sources. Welding codes usually do not address the powersource selection or specifically, whether the weldingprocess is to be operated in the con...
Page 28 - GAS PURGE PUSHbUTTON; blends. The middle of; SCFH; Va lv e
b-10 OPERATION b-10 GAS PURGE PUSHbUTTON The gas solenoid valve will energize but neither thepower source output nor the drive motor will be turnedon. The Gas Purge switch is useful for setting theproper flow rate of shielding gas. Flow meters shouldalways be adjusted while the shielding gas is flow...
Page 29 - ACCESSORIES; WIRE TYPE; FACTORY INSTALLED EQUIPMENT
C-1 ACCESSORIES C-1 LN-25™ PRO WIRE TYPE Steel Wires: Cored Wires: Aluminum Wires: ELECTRODE SIzE .023-.030 (0.6-0.8mm) .035 (0.9mm).045 (1.2mm).052 (1.4mm)1/16 (1.6mm) .035,.045 (0.9, 1.2mm) .040 (1.0mm) .030-.035" (0.8-0.9mm).040-.045" (1.0-1.2mm) .052" (1.4mm)1/16" (1.6mm) .068-.0...
Page 33 - Remove the module from the case by lifting the
C-5 ACCESSORIES C-5 LN-25™ PRO INSTALLATION OF THE K590-6 WATERCOOLING KIT ELECTRIC SHOCK can kill.• Turn the input power OFF at the dis- connect switch before working onthis equipment. • Do not touch electrically hot parts.• O n l y q u a l i f i e d p e r s o n n e l s h o u l d install, use or se...
Page 34 - MAINTENANCE; ROUTINE MAINTENANCE
ELECTRIC SHOCK can kill. • Turn the input power OFF at the w e l d i n g p o w e r s o u r c e b e f o r ei n s t a l l a t i o n o r c h a n g i n g d r i v erolls and/or guides. • D o n o t t o u c h e l e c t r i c a l l y l i v e parts. • When inching with the gun trigger, electrode and drive me...
Page 35 - Wire Feed Speed Validation; COVER
D-2 MAINTENANCE D-2 The LN-25™ PRO flow meter cannot be calibrated. Ifthe flow meter reads incorrectly, check for leaks orkinks in the gas hose. Replace the flow meter if neces-sary. Wire Feed Speed Validation (See Figure D.1)Calibration of the LN-25™ PRO may be required whenthe p.c. board, wire fee...
Page 36 - TROUbLESHOOTING; Local Lincoln Authorized Field Service Facility; for technical troubleshooting assistance before you proceed.; Step 3. RECOMMENDED COURSE OF ACTION; HOW TO USE TROUbLESHOOTING GUIDE; ELECTRIC SHOCK can kill.; Code or any applicable local codes.
E-1 TROUbLESHOOTING E-1 LN-25™ PRO 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. CAUTION This Troubleshooting Gui...
Page 37 - PRObLEMS; Output Problems
E-2 TROUbLESHOOTING E-2 LN-25™ PRO Observe all Safety Guidelines detailed throughout this manual 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 a...
Page 39 - DIAGRAMS; ENHANCED DIAGRAM
F-1 DIAGRAMS F-1 LN-25™ PRO NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual. The specific diagram for a particular code is pasted inside the machine on one of the enclosure panels. If the diagram is illegible, write to the Service Department f...
Page 40 - DIMENSION PRINT
F-2 DIMENSION PRINT F-2 LN-25™ PRO 17.19 8.65 16” C IRCLE 12” x 1 8” ELL IPSE 23.17 14.81 17 .1 9 8. 65 16 ” C IR C LE 12 ” x 1 8” E LL IP SE 23 .1 7 14 .8 1
