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 - Thank You; Please Examine Carton and Equipment For Damage Immediately
v v 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 manual...
Page 7 - vi; TAbLE OF CONTENTS
vi vi TAbLE OF CONTENTS Page –––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– Installation .......................................................................................................................Section A Technical Specifications ..........................
Page 8 - INSTALLATION; TEMPERATURE RANGE; Inches 22.2 Inches 36 lbs; PHYSICAL DIMENSIONS; Extra torque; GMAW
A-1 INSTALLATION A-1 LN-25™ PRO ACROSS THE ARC MODEL 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 ACROSS THE ARC MODEL (K2613-1, K2613-2) HEIGHT WIDTH DEPTH WEIGHT 14.8 Inches 8.7 I...
Page 9 - 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 10 - SHIELDING GAS CONNECTION; CAbLE CONNECTIONS
A-3 INSTALLATION LN-25™ PRO ACROSS THE ARC MODEL A-3 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 ele...
Page 11 - WIRE DRIVE CONFIGURATION
A-4 INSTALLATION LN-25™ PRO ACROSS THE ARC MODEL A-4 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/orguide...
Page 12 - PRESSURE ARM ADJUSTMENT
THUMBSCREW GUN A-5 INSTALLATION LN-25™ PRO ACROSS THE ARC MODEL A-5 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 ...
Page 13 - LN-25TM PRO ACROSS THE ARC MODEL; ACROSS THE ARC SET-UPS; Power Sources with Stud Connectors and; Description
A-6 INSTALLATION LN-25™ PRO ACROSS THE ARC MODEL A-6 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 P...
Page 16 - OPERATION
b-1 OPERATION LN-25™ PRO ACROSS THE ARC MODEL 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 ...
Page 17 - DEFINITION OF WELDING TERMS; GENERAL DESCRIPTION; RECOMMENDED PROCESSES
b-2 OPERATION b-2 LN-25™ PRO ACROSS THE ARC MODEL 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 ...
Page 18 - 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 21 - INTERNAL CONTROLS
b-6 OPERATION b-6 INTERNAL CONTROLS LN-25™ PRO ACROSS THE ARC MODEL 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 weld...
Page 22 - 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 23 - CONSTANT CURRENT WIRE WELDING; For these reasons, Lincoln Electric does; NOT; Con sta nt Current; Current
b-8 OPERATION b-8 LN-25™ PRO ACROSS THE ARC MODEL 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 b...
Page 25 - 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 26 - ACCESSORIES; FACTORY INSTALLED EQUIPMENT
C-1 ACCESSORIES C-1 LN-25™ PRO ACROSS THE ARC MODEL 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...
Page 31 - Remove the module from the case by lifting the
C-6 ACCESSORIES C-6 LN-25™ PRO ACROSS THE ARC MODEL 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...
Page 32 - 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 34 - TROUbLESHOOTING; 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 ACROSS THE ARC MODEL 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 Thi...
Page 35 - PRObLEMS; Fault Code
E-2 TROUbLESHOOTING E-2 LN-25™ PRO ACROSS THE ARC MODEL 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 techni...
Page 36 - Output Problems
E-3 TROUbLESHOOTING E-3 LN-25™ PRO ACROSS THE ARC MODEL 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 techni...
Page 38 - DIAGRAMS
F-1 DIAGRAMS F-1 LN-25™ PRO ACROSS THE ARC MODEL 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 th...
Page 40 - DIMENSION PRINT
F-3 DIMENSION PRINT F-3 LN-25™ PRO ACROSS THE ARC MODEL 17.1 9 8.65 16” C IRC LE 12” x 18” ELL IPS E 23.1 7 14.8 1 1 7 .1 9 8 .6 5 1 6 ” C IR C L E 1 2 ” x 1 8 ” E L L IP S E 2 3 .1 7 1 4 .8 1
Page 41 - NOTES