Lincoln Electric IM756-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.

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.

HANDY MIG

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Contents Handy MIG California Proposition 65 Warnings SafetyElectric Shock can kill Iii Welding Sparks can cause fire or explosionSûreté Pour Soudage a L’Arc Précautions DE SûretéThank You Master Table of Contents for ALL Sections Installation Technical Specifications Handy MIGHandy MIG Safety Precautions Identify and Locate ComponentsElectric Shock can kill Stacking Select Suitable LocationChanging Polarity Input ConnectionsCode Requirements for ELECTRI- CAL Input Connections Shielding GAS ConnectionRequirements for Maximum Output Extension Cord UsageDesign Features and Advantages Operational Features and ControlsOperation General DescriptionWelding Capability Controls and SettingsLimitations Welding Operations3OPERATIONB-3 Contact TIP Wire ElectrodeShielding GAS Contact Tip To Work Distance Ctwd4OPERATIONB-4 Making a WeldTable B.1 Handy MIG Changing Machine Over to Feed Other Wire Sizes Cleaning TIP and GAS NozzleOverload Protection Thermal ProtectionAccessories AccessoriesInnershield Welding Wire MIG Welding WireMaintenance Safety Precautions MaintenanceItems Requiring No Maintenance Routine and Periodic MaintenanceCleaning Components AS Required Cleaning the GUN LinerComponent Replacement Procedures Changing the Contact TIPWork Cable Installation GUN Assembly RemovalHOW to USE Troubleshooting Guide TroubleshootingRecommended Course of Action Problems Possible Symptoms CauseFacility Contact your local Lincoln Authorized Field ServiceWelding Problems Handy DiagramsWiring Diagram for Code Hinge Door Assembly for Code 10919 only Handy MIG Handy MIG Precaucion Warnung