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IM10031-A
RETURN TO MAIN MENU
TM
LN-25 PRO
November, 2010
For use with machines having Code Number: 11620, 11621, 11716, 11717
Safety Depends on You
Lincoln arc welding and cutting
equipment 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.
IP23
IEC 60974-5
OPERATOR'S MANUAL
Copyright © Lincoln Global Inc.
• 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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Summary of Contents for Lincoln Electric PRO IM10031-A
- Page 1 IM10031-A RETURN TO MAIN MENU LN-25 PRO November, 2010 For use with machines having Code Number: 11620, 11621, 11716, 11717 Safety Depends on You Lincoln arc welding and cutting equipment is designed and built with safety in mind. However, your overall safety can be increased by proper installation ...
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Page 2: California Proposition 65 Warnings
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 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.
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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 ...A-2 Analog Control Cable ...A-3 Cable Connections and Control Cable Connector ...A-4 Shielding Gas Connection ...A-4 Wire Drive Configuration ...A-5 Changing The Gun Receiver Bushing ...A-5 Procedure to Install Drive Rolls and Wire Guides ...A-5 Pressure Arm Adjustment ...A-6... -
Page 10: Installation
TECHNICAL SPECIFICATIONS – LN-25™ PRO (K2613-1, K2613-2) INPUT VOLTAGE and CURRENT INPUT VOLTAGE ± 10% 15-110 VDC RATED OUTPUT @ 104°F (40°C) DUTY CYCLE 60% rating 100% rating GEARING - WIRE FEED SPEED RANGE-WIRE SIzE GEARING WFS RANGE Extra torque 30 –... -
Page 11: Safety Precautions
SAFETY PRECAUTIONS WARNING ELECTRIC SHOCK CAN KILL. • Turn the input power OFF at the disconnect switch or fuse box before attempting to connect or disconnect input power lines, out- put cables or control cables. • Only qualified personnel should perform this installation. •... -
Page 12: Analog Control Cable
ANALOG CONTROL CAbLE K1797-xx he control cable connecting the wire feeder to the power source is specially made for the welding envi- ronment. The wire feeder power requires overcurrent protec- tion. Connect the wire feeder only to power sources where the overcurrent protection is no more than 15 amps. -
Page 13: Shielding Gas Connection
CAbLE CONNECTIONS There is one circular connector for the gun trigger on the front of the LN-25™ PRO. Function Wiring 5-pin trigger Trigger connector for Not used push-guns Common only. Not used Not used INSTALLATION SHIELDING GAS CONNECTION CYLINDER may explode if damaged. -
Page 14: Wire Drive Configuration
WIRE DRIVE CONFIGURATION (See Figure A.2) CHANGING bUSHING 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. •... -
Page 15: Pressure Arm Adjustment
PRESSURE ARM ADJUSTMENT WARNING ELECTRIC SHOCK can kill. • Turn the input power OFF at the weld- ing 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 16 POWER SOURCE TO LN-25™ PRO CAbLE CONNECTION DIAGRAMS ACROSS THE ARC SET-UPS CC Power Sources with Output Terminals Always Hot (See Figure A.5) CC Power Source Classics Big Red’s Eagle 10,000 Plus Pipeliner 200D Without Wire Feed module SAE’s Without CV Adapter SAE 400 with CV adapter Engine Driven welder with Wire Feed Module...
- Page 17 CV Power Sources with Stud Connectors and no Remote/Local Switch. (See Figure A.7) Place CV/CC switch in the feeder in the "CV" position. CV-400 DC-655 Ranger 250, 250 LPG Ranger 305G, 305D Ranger 10,000 Ranger 3 Phase Ranger 225GXT Ranger 225 Commander 300 Vantage 300, 400, 500 Air Vantage 500...
- Page 18 CV Power Source with Twist-Mate Connectors and no Remote/Local Switch. (See Figure A.9) Jumper CV-250 CV-300 CV-305 Place CV/CC switch in the feeder in the "CV" position. INSTALLATION FIGURE A.9 LN-25™ PRO Electrode Work K2613-1 K2613-2 KP1695-XX KP1696-XX KP1697-XX See Magnum Literature K1841- K484 LN-25™...
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Page 19: 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 20: 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 LN-25™ PRO is specially engineered to be the most rugged portable wire feeder available. -
Page 21: Case Front Controls
(See Customer Assistance Policy in the front of this Instruction Manual) CASE FRONT CONTROLS 1. ANALOG VOLTMETER The analog voltmeter shows the voltage between electrode and work. On across the arc models, the voltmeter shows open circuit voltage when the wire feeder is not welding. - Page 22 2. WIRE FEED SPEED KNOb The large, calibrated wire feed speed knob makes for easy and accurate adjustment of the wire feed speed. The knob rotates 3/4 turn. Turn the knob clockwise to increase the wire feed speed, and counter clockwise to reduce the wire feed speed. Models with analog voltmeters have a calibrated scale printed around the wire feed speed knob using "in/min"...
- Page 23 Perform regular maintenance and cleaning on the gun liner, conduit and gun. Always use quality electrode, such as L-50 or L-56 from Lincoln Electric. 6. POLARITY LED The Polarity LED - P O L A R I T É...
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Page 24: Internal Controls
INTERNAL CONTROLS ITEM 2 Step Trigger Interlock Switch CV / CC Switch Pressure Adjustment Arm Optional Timer Kit (See Accessories Section) Spool Retainer Spindle Brake Gun Bushing Thumb Screw for securing the welding Gun Socket Head Cap Screw for securing the Gun Bushing Drive Hubs Inlet Wire Guide Cold Feed Pushbutton... -
Page 25: Internal Controls Decription
INTERNAL CONTROLS DESCRIPTION (See Figure B.2) 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 26: Constant Current Wire Welding
For these reasons, Lincoln Electric does NOT recom- mend constant current semiautomatic welding for applications which need to meet specified weld metal chemical or mechanical property requirements or weld quality requirements. -
Page 27: Rear Controls
REAR CONTROLS: O p t i o n a l W a t e r c o o l e d g u n c o n n e c t i o n s I T E M G a s P u r g e P u s h b u t t o n F l o w M e t e r B a l l D E S C R I P T I O N S h i e l d i n g G a s I n l e t... -
Page 28: Flow Meter
b-10 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 29: Accessories
FACTORY INSTALLED EQUIPMENT • K1500-2 Gun Receiver Bushing. DRIVE ROLL KITS WIRE TYPE ELECTRODE SIzE Steel Wires: .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) Cored Wires: .040-.045" (1.0-1.2mm) .052" (1.4mm) 1/16"... - Page 30 K1796-xx AWG 1/0 Co-Axial 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 Weld Power Cable, Lug to Lug Control Cable K1797-xx Jumper Plug Kit K484 K1798 Adapter Cable for Control Cable to (requires Terminal Strip Power Sources remote control...
- Page 31 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® #2-#4) Gun Receiver Bushing (for guns K1500-3...
- Page 32 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.) K489-7 Gun Receiver Bushing (for Lincoln Fast-Mate guns.) K435 Spindle Adapter, for mounting 14 lb. (6.4 kg) Innershield Coils on 2 in (51 mm) spindles.
- Page 33 INSTALLATION OF THE K590-6 WATER COOLING KIT WARNING ELECTRIC SHOCK can kill. • Turn the input power OFF at the dis- connect switch before working on this equipment. • Do not touch electrically hot parts. • Only qualified personnel should install, use or service this equipment.
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Page 34: 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 35 The LN-25™ PRO flow meter cannot be calibrated. If the flow meter reads incorrectly, check for leaks or kinks 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 when the p.c.
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Page 36: Troubleshooting
HOW TO USE TROUbLESHOOTING GUIDE 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 37 3. Blow dirt out of the liner with low pressure (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.
- Page 38 Observe all Safety Guidelines detailed throughout this manual PRObLEMS (SYMPTOMS) Wire feed speed consistently oper- ates at the wrong value. The speed changes when the wire feed speed knob is adjusted. The wire feed speed stuck at 200- 300 in/min and there is no change when the wire feed speed knob is adjusted.
- Page 39 ENHANCED DIAGRAM DIAGRAMS LN-25™ PRO...
- Page 40 DIMENSION PRINT LN-25™ PRO...
- Page 41 WARNING Spanish AVISO DE PRECAUCION French ATTENTION German WARNUNG Portuguese ATENÇÃO Japanese Chinese Korean Arabic...
- Page 42 Spanish PRECAUCION French ATTENTION German WARNUNG Portuguese Japanese Chinese Korean Arabic WARNING AVISO DE ATENÇÃO...
- Page 43 • 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...