Lincoln Electric 11389, LN-25, IM-939A, 11523 specifications HOW to USE Troubleshooting Guide

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TROUBLESHOOTING

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HOW TO USE TROUBLESHOOTING GUIDE

WARNING

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.

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This Troubleshooting Guide is provided to help you locate and repair possible machine malfunctions. Simply follow the three-step procedure listed below.

Step 1. LOCATE PROBLEM (SYMPTOM).

Look under the column labeled “PROBLEM (SYMP- TOMS)”. This column describes possible symptoms that the machine may exhibit. Find the listing that best describes the symptom that the machine is exhibiting.

Step 2. POSSIBLE CAUSE.

The second column labeled “POSSIBLE CAUSE” lists the obvious external possibilities that may contribute to the machine symptom.

Step 3. RECOMMENDED COURSE OF ACTION This column provides a course of action for the Possible Cause, generally it states to contact your local Authorized Field Service Facility.

If you do not understand or are unable to perform the Recommended Course of Action safely, contact your local Authorized Field Service Facility.

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" to work and ground and could remain energized several seconds after the gun trigger is released.

Welding power source must be connected to system ground per the National Electrical Code or any applicable local codes.

Only qualified personnel should perform maintenance work.

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.

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 InstallationWeld Cable Size Safety PrecautionsLocation High Frequency ProtectionShielding GAS Connection Cable ConnectionsBuild UP of Shielding GAS MAY Harm Health or Kill Procedure to Install Drive Rolls and Wire Guides Wire Drive ConfigurationChanging the GUN Receiver Bushing Loading Spools of Wire Pressure ARM AdjustmentGUN Connection 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 SequenceDrive Roll Kits AccessoriesFactory Installed Equipment Wire Type Electrode Size KP KITAccessories Accessories K1500-5 Gun Receiver Bushing compatible Calibration Specification MaintenanceRoutine Maintenance Periodic MaintenanceBoard 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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