Lincoln Electric IM490-C manual Welding Problems

Page 27

E-7

 

 

TROUBLESHOOTING & REPAIR

 

 

E-7

 

 

 

 

 

 

 

 

Observe all Safety Guidelines detailed throughout this manual

 

 

 

 

 

 

 

 

PROBLEMS

 

POSSIBLE AREAS OF

RECOMMENDED

 

 

(SYMPTOMS)

 

MISADJUSTMENT(S)

COURSE OF ACTION

 

 

 

 

 

 

 

 

 

 

WELDING PROBLEMS

Poor welding, weld settings drift, or 1.

Make sure the machine settings

output power is low.

are correct for the weld process

 

being used.

2.

Check machine performance on

 

LOCAL control. If OK then the

 

remote control device may be

 

faulty. Check or replace.

3.

Check the input voltages and

 

input voltage reconnect

 

procedures. See Installation

 

Section of this manual.

Poor stick electrode welding

1.

Check for loose or faulty welding

performance. The arc pops out.

 

cables.

 

2.

Is the electrode DRY? Try weld-

 

 

ing with another electrode from a

 

 

different container. Make sure

 

 

you have the correct electrode for

 

 

the application.

 

3.

Make sure the machine settings

 

 

are correct for the weld process

 

 

being used.

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, con- tact your local authorized field service facility for technical troubleshooting assistance before you proceed.

INVERTEC V250-S

Image 27
Contents INVERTECV250-SFebruary California Proposition 65 Warnings SafetyElectric Shock can kill Cylinder may explode if damaged Sûreté Pour Soudage a L’Arc Précautions DE SûretéInvertec V250-S Thank YouTable of Contents Installation Three Phase Single PhaseThree Phase Technical Specifications Invertec V250-S K1437-2 Safety Precautions Select Suitable LocationInput Connections Input Voltage Reconnect Procedure Input Fuse and Supply WirePower Input Connection for 50/60 HZ Machines Output Cables Remote Control ReceptacleOutput Connections Quick Disconnect PlugsSafety Instructions OperationGeneral Description Figure B.1 Case Front Controls Controls and SettingsTIG Welding Constant Current ProcessesManual ARC Welding Stick AIR Carbon ARC CuttingParallel Operation Overload ProtectionThermal Protection Cable Plugs AccessoriesOptions / Accessories Remote ControlsInput Filter Capacitor Discharge Procedure MaintenanceFilter Capacitor Conditioning Routine MaintenanceFigure D.2 Location of Maintenance Components PC Board Troubleshooting Procedures Troubleshooting & RepairPossible Areas SymptomsTroubleshooting & Repair Troubleshooting & Repair See Installation Section of this Troubleshooting & Repair Welding Problems Wiring DIAGRAM- Codes 10102 DiagramsWiring Diagram Invertec V250-S Electrical Diagrams Wiring DIAGRAM- Code Electrical DiagramsDimension Print Invertec V250-S Basic Course How To Read Shop DrawingsPrecaucion Warnung