Lincoln Electric IM-939A, LN-25, 11523, 11389 specifications General Description

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B-2

OPERATION

B-2

 

 

 

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 LN25 PRO EXTREME is specially engineered to be the most rugged portable wire feeder available.

The plastic case is molded from a high impact, flame retardant plastic for durability and low weight. The patent pending design keeps the internal components protected and dry.

The heart of the LN25 PRO EXTREME is the 2 roll MAXTRAC™ drive. The patented features on the wire drive offer tool-less changing of the drive rolls and wire guides for quick spool changes. A tachometer controlled motor powers the patent pending drive rolls for smooth, steady feeding without slippage.

With only one p.c. board, the LN25 PRO EXTREME is designed to be simple, reliable and easy to service. The p.c. board is mounted with Lincolnʼs leading envi- ronmental design protection by mounting the board in a plastic tray and potting it with epoxy.

General Functional Description

The LN25 PRO EXTREME as designed is a simple, robust feeder. Standard features include a calibrated wire feed speed dial, CV-CC switch, Gas Purge and Cold Feed.

RECOMMENDED PROCESSES

•GMAW

•FCAW

PROCESS LIMITATIONS

•GMAW-P procedures must be qualified by the cus- tomer.

•Across-the-Arc models are not recommended for stitch or spot welding.

EQUIPMENT LIMITATIONS

•The duty cycle of the wire feeder is 325A, 100% and 450A, 60%. Duty cycle is based upon the amount of welding performed in a 10 minute period.

•The maximum spool size is 45 lb, 12" diameter.

•Maximum FCAW gun length is 15 ft.

•Maximum GMAW gun length is 25 ft.

•Push-pull guns do not work with the wire feeder.

RECOMMENDED POWER SOURCES

• CV-305

• Ranger 3 Phase

• CV-400

• Ranger GXT

• CV-655

• Ranger 250

• DC-400

• Ranger 305

• DC-600

• SAE-400

• DC-655

• Pipeliner 200G

• Invertec V-350 PRO

• Classic 300

• Invertec V-450 PRO

• Vantage 300

• Multi-Weld 350

• Vantage 400

• Ranger 10,000

• Vantage 500

 

 

LN-25 PRO EXTREME

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Contents LN-25 PRO Extreme LN-25 PRO Extreme SafetyElectric Shock can kill Cylinder may explode if damaged Sûreté Pour Soudage a LʼArc Précautions DE SûretéThank You Table of Contents Technical Specifications LN25 PRO K2613-3 InstallationLocation Safety PrecautionsHigh Frequency Protection Weld Cable SizeBuild UP of Shielding GAS MAY Harm Health or Kill Cable ConnectionsShielding GAS Connection Changing the GUN Receiver Bushing Wire Drive ConfigurationProcedure to Install Drive Rolls and Wire Guides GUN Connection Pressure ARM AdjustmentLoading Spools of Wire Across the ARC SET-UPS Power Source to LN25 PRO Extreme Cable Connection DiagramsFigure A.7 Figure A.9 Operation Safety PrecautionsGeneral Description Analog Voltmeter Figure B.1 DescriptionWire Feed Speed, CV Operation Wire Feed Speed KnobPolarity LED Figure B.2 LN-25 PRO Extreme Internal ControlsCold Feed Pushbutton CV/CC SwitchFigure B-3 Constant Current Wire WeldingRear Controls GAS Purge Pushbutton POWER-UP SequenceFactory Installed Equipment AccessoriesWire Type Electrode Size KP KIT Drive Roll KitsAccessories Accessories K1500-5 Gun Receiver Bushing compatible Routine Maintenance MaintenancePeriodic Maintenance Calibration SpecificationBoard LN-25 PRO Extreme CoverHOW to USE Troubleshooting Guide TroubleshootingDigital Display Models Error Codes Output Problems Troubleshooting Diagrams Diagrams Dimension Print LN-25 PRO Extreme LN-25 PRO Extreme Precaucion Warnung
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