Lincoln Electric CV-305 manual Problems Possible Recommended

Page 23

E-4

 

TROUBLESHOOTING

E-4

 

 

 

 

 

 

Observe all Safety Guidelines detailed throughout this manual

 

 

 

 

 

 

PROBLEMS

POSSIBLE

RECOMMENDED

 

 

(SYMPTOMS)

CAUSE

COURSE OF ACTION

 

 

 

 

 

 

PROBLEMS

Thermal Protection Indicator light is

1.

Thermostat circuit has opened.

on.

 

 

 

 

2.

Faulty Control PC Board.

 

 

 

Machine does not have maximum

1. Faulty Control PC Board.

output

 

 

 

 

2.

Voltage Adjust potentiometer

 

 

defective.

 

3.

Voltage Adjust potentiometer

 

 

leads open.

 

 

 

 

Machine will not shut off.

1.

Defective power switch.

 

 

 

 

Variable or sluggish welding arc.

1.

Poor work or electrode

 

 

connection.

 

2.

Welding leads too small.

 

3.

Welding current or voltage

 

 

too low.

 

4.

Defective SCR bridge.

 

 

 

Digital meters do not light

1.

Faulty Meter PC board.

- or -

 

 

 

Digital meter display is incorrect.

 

 

 

 

2.

Faulty Control PC Board.

 

 

 

 

 

 

 

 

If all recommended possible areas of misadjustment have been checked and the problem persists,

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.

CV-305

Image 23
Contents Idealarc CV-305February 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 Technical Specifications Idealarc CV-305 InstallationStacking Safety PrecautionsInput Connections Select Suitable LocationOutput Connections Field Installed OptionsParalleling General Warnings OperationOperating Instructions Indicates Warning Information Located On Right Case Side General Description Operational Features and ControlsDesign Features Power Source OperationThermal Protection Indication Light Controls and Output SettingsWire Feeder Voltmeter Switch Overload Protection Auxiliary PowerStarting the Machine Compatible Lincoln Equipment AccessoriesFactory Installed OPTIONS/ACCESSORIES Field Installed OptionsMachine and Circuit Protection MaintenanceGeneral Maintenance Safety PrecautionsHOW to USE Troubleshooting Guide TroubleshootingError Code Trouble Remedy BUILT-IN Diagnostic Routines and Error CodesProblems Possible Recommended Symptoms Machine Troubleshooting GuideProblems Possible Recommended Poor arc characteristics Control PC Board defective Contact your local Lincoln Options Troubleshooting GuideMeter PC Board Control PC BoardChecking Snubber Circuit Fault Protection OperationOptional K857 Remote Control Check Output VoltageWiring Diagram CV-305 60Hz DiagramsCV Power Source to AN LN-7 and K857 Adapter Power Source to a K867 / K775 / LN CV Power Source to AN LN-25 Power Source to AN LN-25 / K444-1 Wire Lincoln Power Source to AN LN-742Installation Instructions TWIST-MATE Cable Plug Installation Instructions Feeders Connection of NON-LINCOLN WireDimension Print Precaucion Warnung
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