Lincoln Electric IM10031-A manual 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 LN-25™ PRO is specially engineered to be the most rugged portable wire feeder available.

Several models of the LN-25™ PRO are offered to best meet individual welder needs. The Extra Torque model features additional torque gearing for reliable feeding of large diameter FCAW wires. All of the mod- els include a gas solenoid and flow meter for the flexi- bility to run most wire processes.

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 LN-25™ PRO is the 2 roll MAX- TRAC™ 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.

The LN-25™ PRO has only two p.c. boards that are designed to be simple, reliable and easy to service.

General Functional Description

The LN-25™ PRO as designed is a simple, robust feeder. Standard features include a calibrated wire feed speed dial, 2 step/trigger interlock switch, 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-250

• Ranger 3 Phase

• CV-300

• Ranger 225

• CV-305

• Ranger 225 GXT

• CV-400

• Ranger 250

• CV-655

• Ranger 250 GXT

• 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

 

• Air Vantage 500

 

Big Red’s

 

Eagle 10,000 Plus

 

Classic’s

LN-25™ PRO

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Contents LN-25 Tmpro Safety California Proposition 65 WarningsElectric Shock can kill Welding and Cutting Sparks can Cause fire or explosion IiiPrécautions DE Sûreté Sûreté Pour Soudage a L’ArcElectromagnetic Compatibility EMC Methods of Reducing Emissions Mains Supply On-Line Product Registration ViiPlease Examine Carton and Equipment For Damage Immediately TAbLE of Contents Installation Technical Specifications LN-25 PRO K2613-1, K2613-2Wire SIzES LN-25 PROSafety Precautions LocationHigh Frequency Protection Weld CAbLE SIzE3INSTALLATIONA-3 Power SourceWire Feeder Analog Control CAbLE K1797-xxShielding GAS Connection Function Pin WiringCAbLE Connections Changing the GUN Receiver bUSHING Wire Drive ConfigurationProcedure to Install Drive Rolls and Wire Guides Pressure ARM Adjustment Loading Spools of WireGUN Connection Fe, CrNiDescription Power Source to LN-25 PROAcross the ARC SET-UPS Figure A.7 9INSTALLATIONA-9 Figure A.9Safety Precautions OperationGeneral Description Case Front Controls See Figure b.1 Figure b.1Wire Feed Speed KNOb Wire Feed Speed, CV OperationMinimum Arc Volts Maximum WFS Extra TorquePolarity LED Internal Controls Figure b.2Step Trigger Interlock Switch Internal Controls DescriptionCold Feed PUSHbUTTON Step TriggerConstant Current Wire Welding Figure b-3Itemdescription Rear ControlsPOWER-UP Sequence GAS Purge PUSHbUTTONFlow Meter Liter/MinAccessories Factory Installed EquipmentDrive Roll Kits Electrode SIzEOn at all times Accessories K1500-5 Gun Receiver Bushing compatible Installation of the K590-6 Water Cooling KIT Maintenance Routine MaintenancePeriodic Maintenance CALIbRATION SpecificationWire Feed Speed Validation To change the wire feed speed calibration See Figure D.2Model gearing BOARD LN-25 PROTROUbLESHOOTING Electric Shock can killPRObLEMS SymptomsPOSSIbLE Cause Recommended Course of ActionTROUbLESHOOTING Diagrams Enhanced DiagramDimension Print Precaucion Warnung
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