Lincoln Electric IM901-A manual LN-25PRO, Safety Depends on You

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LN-25™PRO

For use with machines having Code Number: 11387, 11388, 11507, 11508

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 opera- tion 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.

IM901-A

January, 2010

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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Contents LN-25PRO Safety Depends on YouCalifornia Proposition 65 Warnings SafetyElectric Shock can kill Iii Welding and Cutting Sparks can Cause fire or explosionPrécautions DE Sûreté On-Line Product Registration Please Examine Carton and Equipment For Damage ImmediatelyTAbLE of Contents Installation Location Safety PrecautionsHigh Frequency Protection Weld CAbLE SIzEFunction Pin Wiring 3INSTALLATIONA-3CAbLE Connections Shielding GAS ConnectionChanging the GUN Receiver bUSHING Procedure to Install Drive Rolls and Wire GuidesLoading Spools of Wire Pressure ARM AdjustmentGUN Connection Fe, CrNiFigure A.5 Across the ARC SET-UPSFigure A.7 Figure A.9 8INSTALLATIONA-8Operation Definition of Welding Terms Recommended Power SourcesRecommended Processes Process LimitationsDescription Case Front Controls See Figure b.1Analog Voltmeter Wire Feed Speed, CV Operation Wire Feed Speed KNObMinimum Arc Volts Maximum WFS Extra TorquePolarity LED Figure b.2 Internal ControlsInternal Controls Description CV/CC SwitchCold Feed PUSHbUTTON Figure b-3 Constant Current Wire WeldingRear Controls ItemdescriptionGAS Purge PUSHbUTTON POWER-UP SequenceFlow Meter ScfhFactory Installed Equipment AccessoriesWire Type Drive Roll KitsAccessories Kit Accessories K1500-5 Gun Receiver Bushing compatible Installation of the K590-6 Water Cooling KIT Routine Maintenance MaintenancePeriodic Maintenance CALIbRATION SpecificationTo change the wire feed speed calibration See Figure D.2 Wire Feed Speed ValidationModel gearing BOARDElectric Shock can kill TROUbLESHOOTINGSymptoms PRObLEMSFault Code Description Possible Adjustments POSSIbLEOutput Problems TROUbLESHOOTING LN-25 PRO Across the ARC DiagramsModel Diagrams Dimension Print LN-25 PRO Across the ARC Model Precaucion Warnung