Lincoln Electric IM936 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 California Proposition 65 WarningsElectric Shock can kill Welding and Cutting Sparks can Cause fire or explosion Précautions DE Sûreté Sûreté Pour Soudage a L’ArcThank You Table of Contents Installation Rated Input Single Phase onlyRated Output IEC Additional Output CapacityRecommended Input Wire and Fuse Sizes Temperature RangesOperating Temperature Range Storage Temperature RangeSafety Precautions Input and Grounding Connections Stick Electrode Cable Connection Output CABLES, Connections and LimitationsWork Cable Connection TIG Torch Connection Figure A.2Auxiliary Power Connections Figure A.3Robotic Interface Connection Figure A.4Operation Product DescriptionPipe Thawing Welding SparksRecommended Processes and Equipment Recommended ProcessesProcess Limitations Equipment LimitationsControls and Settings Figure B.1 Control PanelOperation Select Do not USE 4-STEP if Using AN Amptrol Remote Advanced Panel ControlsOperation Stick Welding Features Internal SET UP ControlsTIG Welding Features Figure B.3 Figure B.4 TIG Weld Cycle Chart Setup Guidelines for TIG Welding With AN AmptrolFigure B.6 Making a TIG Weld with AN Amptrol Recommended Electrode Amperage Ranges Precision TIGAccessories Factory Installed OptionsField Installed Options Optional EquipmentMaintenance Safety PrecautionsRoutine and Periodic Maintenance Overload ProtectionService Procedures Component AccessSpark GAP Adjustment UNDER-COOLER ServiceTroubleshooting HOW to USE Troubleshooting GuideSymptoms Output ProblemsPossible Areas Course of ActionGAS Problems Meter ProblemsHI-FREQ Problems Preset & Output Control Problems Stick Welding Problems TIG Welding ProblemsTIG Problems Wiring Diagram Precisiontig 375 Wiring DiagramDimension Print Precision TIG Warnung Aviso DE
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