Lincoln Electric IM904 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.

Step 3. RECOMMENDED COURSE OF ACTION 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.

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.

INVERTEC STT II (CE)

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Contents Safety Depends on You Invertec S T T II CESafety California Proposition 65 WarningsElectric Shock can kill Welding Sparks can cause fire or explosion IiiPrécautions DE Sûreté Sûreté Pour Soudage a L’ArcThank You Table of Contents Installation Technical Specifications -INVERTEC STT II CE For CodeINPUT- Three Phase only Select Suitable Location Input ConnectionsStacking TiltingInput Cable Installation and CON- Nection Ground ConnectionInput Voltage Reconnect Procedure Wire Feeder Output ConnectionsTo Operate at Procedure Output ConnectionsSafety Precautions OperationOperating Instructions General WarningsDesign Features and Advantages Recommended EquipmentWelding Capability Operating ControlsPower Switch Turns output 3B. Peak Current Display Meter ThisWire Feeder Receptacle This is Auxiliary Power Circuit BreakerWelding Parameters and GUIDE- Lines Peak CurrentWelding Procedures for STT Accessories Options / AccessoriesLN-742 or STT-10 Wire Feeder Connection Instructions Figure C.3 STT-10 to STT II Connection Maintenance Input Filter Capacitor Discharge ProcedurePreventive Maintenance Troubleshooting HOW to USE Troubleshooting GuideProblems Symptoms Possible Cause Authorized Field ServiceRecommended Course of Action FacilityProblems Possible Symptoms Cause Troubleshooting Troubleshooting Problems Symptoms Possible Cause Wiring Diagram Invertec STT II CE for Code Wiring Diagram Invertec STT II CE for Code DiagramsDimension Print STT II CE DIAGRAMSF-3Invertec STT II CE Invertec STT II CE Invertec STT II CE Precaucion Warnung