Lincoln Electric IM812-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.

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Contents LN-35 CV/CC Semiautomatic Wire Feeder California Proposition 65 Warnings SafetyElectric Shock can kill Cylinder may explode if damaged Sûreté Pour Soudage a L’Arc Précautions DE SûretéThank You Table of Contents Installation Power Source Connection Safety PrecautionsINVERTEC, CV300 and Other Newer Lincoln Power Sources GUN Cable Connection to FeederCV Adapter Changing Drive Rolls for TWO- Roll Wire Feeders Drive Roll InstallationWeld Cable Connection Electrode Cable ConnectionGeneral Description OperationRecommended Processes and Equipment Welding CapabilityAdjustable Wire Reel Brake Wire Reel Loading 50 and 60 LBWork Clip Lead To Mount a 50 or 60 LB CoilLoading Wire Drive Idle Roll Pressure SettingPresetting Wire Feed Speed Setting Constant Wire Feed Speed CV ModeSetting ARC Sensing Wire Feed Speed VV CC Mode Making a Weld Figure B.4 Vvcc Wire Speed SettingProcedure AT END of Coil Automatic Protection Shutdown Overvoltage Shutdown Motor Overload Shutdown Maintenance Routine MaintenanceCircuit Protection and Automatic Shutdown Calibration of LN-35 Wire Speed Dial Adjusting Speed Sensor ModuleHOW to USE Troubleshooting Guide TroubleshootingContact your local Lincoln Your local Lincoln Authorized Wiring Diagram LN-35 DiagramsLN-35 Precaucion Warnung
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