Lincoln Electric IM703-A manual 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 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.

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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.

This column provides a course of action for the Possible Cause, generally it states to contact your local Lincoln Authorized Field Service Facility.

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

Step 3. RECOMMENDED COURSE OF ACTION

CAUTION

DO NOT use a volt-ohm meter to measure output voltages in TIG mode. The

High Frequency Arc Starter voltage can damage the meter.

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.

PRECISION TIG 375

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Contents
Precision TIG Safety Depends on YouCalifornia Proposition 65 Warnings SafetyElectric Shock can kill Iii Welding Sparks can cause fire or explosionSûreté Pour Soudage a L’Arc Précautions DE SûretéThank You Table of Contents Volts at Rated Amperes Amps InstallationRated Input Single Phase only Duty Cycle-ApplicationsAdditional Output Capacity Recommended Input Wire and Fuse SizesPhysical Dimensions Temperature RangesSafety Precautions Input and Grounding Connections Work Cable Connection Output CABLES, Connections and LimitationsStick Electrode Cable Connection Figure A.2 TIG Torch ConnectionFigure A.3 Auxiliary Power ConnectionsFigure A.4 Robotic Interface ConnectionWelding Sparks OperationProduct Description Pipe ThawingEquipment Limitations Recommended Processes and EquipmentRecommended Processes Process LimitationsFigure B.1 Control Panel Controls and SettingsMinimum Output Control and Display Switch Advanced Panel Controls Do not USE 4-STEP if Using AN Amptrol RemotePulse Background Current Control TIG Welding Features Internal SET UP ControlsStick Welding Features Figure B.3 Figure B.4 Setup Guidelines for TIG Welding with AN Amptrol TIG Weld Cycle ChartUsing the Start Pedal Foot Amptrol K870-1 Figure B.5 Smaw Process Making a TIG Weld with AN AmptrolGtaw Process Optional Equipment AccessoriesFactory Installed Options Field Installed OptionsOverload Protection MaintenanceSafety Precautions Routine and Periodic MaintenanceUNDER-COOLER Service Service ProceduresComponent Access Spark GAP AdjustmentHOW to USE Troubleshooting Guide TroubleshootingCourse of Action SymptomsOutput Problems Possible AreasGAS Problems Meter ProblemsHI-FREQ Problems Preset & Output Control Problems TIG Welding Problems Stick Welding ProblemsTIG Problems Precision TIG 375 Wiring Diagram for Code MID TIG PrecisionDimension Print K1833-1 DOMESTIC, K1833-2 Canada and K1834-1 Export Precision TIG Warnung Aviso DE
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