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M a r c h , 2 0 1 1
I M 1 0 0 7 8
RED-D-ARC
LN-25™ PRO EXTREME
For use with machines having Code Numbers: 11748
OPERATOR'S MANUAL
Red-D-Arc Spec-Built Welding Equipment
This RED-D-ARC welder is built to RED-D-ARC Extreme Duty
design specifications by Lincoln Electric.
Safety Depends on You
This welder is designed and built with safety in mind.
However, your overall safety can be increased by proper installation
... and thoughtful operation 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.
1-800-245-3660
North America's Largest Fleet of Welding Equipment
IM10078
March, 2011
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Related Manuals for Lincoln Electric RED-D-ARC LN-25TM PRO EXTREME IM10078
Summary of Contents for Lincoln Electric RED-D-ARC LN-25TM PRO EXTREME IM10078
- Page 1 OPERATOR’S MANUAL Red-D-Arc Spec-Built Welding Equipment This RED-D-ARC welder is built to RED-D-ARC Extreme Duty design specifications by Lincoln Electric. Safety Depends on You This welder is designed and built with safety in mind. However, your overall safety can be increased by proper installation ...
- 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 SAFETY...
- Page 4 SAFETY...
- 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 L’Arc 1. Protegez-vous contre la secousse électrique: a.
- Page 6 SAFETY...
- Page 7 SAFETY...
- Page 8 Thank You...
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Page 9: Table Of Contents
TAbLE OF CONTENTS –––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– Installation...Section A Technical Specifications ...A-1 Safety Precautions ...A-2 Location ...A-2 High Frequency Protection ...A-2 Weld cable Sizes, Electrode Lead...A-2 Shielding Gas Connection ...A-3 Wire Drive Configuration...A-3, A-4 Gun Receiver Bushing, Thumb Screw, Socket Head Cap Screw ...A-4 Procedure to Install Drive Rolls and Wire Guides ...A-4 Loading Spools of Wire ...A-4 Pressure Arm Adjustment ...A-5... -
Page 10: Installation
TEChNICAL SPECIFICATIONS – RED-D-ARC LN-25™ PRO EXTREME (K2613-6) INPuT VOLTAGE and CuRRENT INPuT VOLTAGE ± 10% RATED OuTPuT @ 104°F (40°C) DuTY CYCLE 60% rating GEARING - WIRE FEED SPEED RANGE-WIRE SIzE GEARING WFS RANGE Standard Speed 50 – 700 ipm K2613-6 (1.3 –... -
Page 11: Safety Precautions
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 to work and back to the welder again. Cable sizes are increased for greater lengths primarily for the purpose of minimizing cable drop. -
Page 12: Shielding Gas Connection
• Keep cylinder away from areas where it may be damaged. • Never lift welder with cylinder attached. • Never allow welding electrode to touch cylinder. • Keep cylinder away from welding or other live electrical circuits. -
Page 13: Procedure To Install Drive Rolls And Wire Guides
FIGuRE A.2 THUMB SCREW GUN RECEIVER BUSHING CONNECTOR BLOCK SOCKET HEAD CAP SCREW LOOSEN PROCEDuRE TO INSTALL DRIVE ROLLS AND WIRE GuIDES WARNING • Turn the input power OFF at the welding power source before instal- lation or changing drive rolls and/or guides. -
Page 14: Pressure Arm Adjustment
PRESSuRE ARM and ADJuSTMENT WARNING ELECTRIC ShOCK can kill. • Turn the input power OFF at the welding power source before instal- lation 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: Power Source To Red-D-Arc Ln-25™ Pro Extreme Cable Connection Diagrams
W o r k c l i p DC-400 DC-600 DC-655 V450-Pro SAE 400 with CV adapter Engine Driven welder with Wire Feed Module Ranger 250 GXT Place the power source Remote/Local switch in the Local position. Place CV/CC switch in the feeder in the "CV" position. - Page 16 CV Power Source with Twist-Mate Connectors and Remote/Local Switch. (See Figure A.8) V350-Pro CV 305 W o r k C V - 3 0 0 C V - 2 5 0 ( R e d - D - A r c L N - 2 5 ™ E l e c t r o d e J u m p e r W o r k c l i p...
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Page 17: Operation
SAFETY PRECAuTIONS READ AND uNDERSTAND ENTIRE SECTION bEFORE OPERATING MAChINE. WARNING • ELECTRIC ShOCK CAN KILL. unless using COLD FEED fea- ture, when feeding with gun trig- ger, the electrode and drive mechanism are always electri- cally energized and could remain energized several sec- onds after the welding ceases.. -
Page 18: Definition Of Welding Terms
DEFINITION OF WELDING TERMS • Wire Feed Speed • Constant Current • Constant Voltage GMAW • Gas Metal Arc welding SMAW • Shielded Metal Arc welding FCAW • Flux Core Arc Welding GENERAL DESCRIPTION General Physical Description The RED-D-ARC LN-25™ PRO EXTREME is spe- cially engineered to be the most rugged portable wire feeder available. -
Page 19: Case Front Controls
(See Customer Assistance Policy in the front of this Instruction Manual) CASE FRONT CONTROLS (See Figure b.1) FIGuRE b.1 ITEM DESCRIPTION Digital Display Wire Feed Speed Knob 5-pin gun trigger connector Work sense lead Set-up Pushbutton 1. DIGITAL DISPLAY Power-up All of the LED’s will briefly illuminate during power- Idle The left display shows the preset wire feed speed. - Page 20 3. TRIGGER CONNECTOR There is one circular connector for the gun trigger on the front of the LN-25 PRO. Note – if the gun trigger is already depressed when the feeder is powered up, the feeder will not activate. Release and then press the gun trigger to begin welding.
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Page 21: Internal Controls
INTERNAL CONTROLS D r i v e H u b s I T E M 2 S t e p T r i g g e r I n t e r l o c k S w i t c h C o l d F e e d P u s h b u t t o n P r e s s u r e A r m S p i n d l e B r a k e... -
Page 22: Internal Controls Decription
INTERNAL CONTROLS DESCRIPTION (See Figure B.2) 1. 2 STEP - TRIGGER INTERLOCK SWITCh The 2 Step - Trigger Interlock switch changes the function of the gun trigger. 2 Step trigger opera- tion turns welding on and off in direct response to the trigger. Trigger Interlock operation allows welding to continue when the trig- ger is released for comfort on long... -
Page 23: Rear Controls
REAR CONTROLS: (See Figure B.4) 1. 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. Flow meters should always be adjusted while the shielding gas is flowing. -
Page 24: Accessories
FACTORY INSTALLED EQuIPMENT • K1500-2 Gun Receiver Bushing. DRIVE ROLL KITS uSED • See Parts Pages K2330-2 Timer Kit K2596-2 Plastic Case K1796-xx AWG 1/0 Coaxial Power Cable K2593-xx AWG #1 Coaxial Power Cable K1803-1 Work and Feeder Cables Package K1840-xx Weld Power Cable, Twist-Mate to K1842-xx... - Page 25 K484 Jumper Plug Kit K910-1 Ground Clamp K910-2 Ground Clamp Gun Receiver Bushing (for guns K1500-1 with K466-1 Lincoln gun connec- tors; Innershield and Subarc guns) Gun Receiver Bushing (for guns with K466-2, K466-10 Lincoln gun K1500-2 connectors; Magnum 200/300/400 guns and compatible with Tweco®...
- Page 26 Gun Receiver Bushing (for gun K1500-4 with K466-3 Lincoln gun connec- tors; compatible with Miller® guns.) K1500-5 Gun Receiver Bushing (compatible with Oxo® guns.) K435 Spindle Adapter, for mounting 14 lb. (6.4 kg) Innershield Coils on 2 in (51 mm) spindles. K468 Spindle Adapter, for mounting 8in (203mm) diameter spools on 2 in...
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Page 27: Maintenance
SAFETY PRECAuTIONS 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 28: Troubleshooting
hOW TO uSE TROubLEShOOTING GuIDE Service and Repair should only be performed by 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 29 Observe all Safety Guidelines detailed throughout this manual PRObLEMS (SYMPTOMS) Err 81 Err 82 The feeder does power up - no dis- play, no cold feed. (Across the Arc models) The wire feeder power up but there is no output when the trigger is pulled.
- Page 30 (40psi or less). Replace the liner if worn. 4. Use only clean electrode. Use quality electrode, like L-50 or L-56 from Lincoln Electric. 5. Replace the contact tip. 6. Verify the proper parts are installed. 7. Adjust the tension arm per the Instruction Manual.
- Page 31 Observe all Safety Guidelines detailed throughout this manual PRObLEMS (SYMPTOMS) Variable or "hunting" arc. When the trigger is pulled, the wire feeds slowly. Poor arc starts with sticking or "blast-offs", weld porosity, narrow and ropy looking bead. If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your Local Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
- Page 32 DIAGRAMS RED-D-ARC LN-25™ PRO EXTREME...
- Page 33 DIMENSION PRINT RED-D-ARC LN-25™ PRO EXTREME...
- Page 34 NOTES RED-D-ARC LN-25™ PRO EXTREME...
- Page 35 NOTES RED-D-ARC LN-25™ PRO EXTREME...
- Page 36 WARNING Spanish AVISO DE PRECAuCION French ATTENTION German WARNuNG Portuguese ATENÇÃO Japanese Chinese Korean Arabic...
- Page 37 Spanish PRECAuCION French ATTENTION German WARNuNG Portuguese Japanese Chinese Korean Arabic WARNING AVISO DE ATENÇÃO...
- Page 38 • 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...