Lincoln Electric IM784 manual Welding Problems

Page 30

E-4

TROUBLESHOOTING

E-4

 

 

 

TROUBLESHOOTING GUIDE

Observe Safety Guidelines detailed in the beginning of this manual.

 

 

 

 

 

 

 

 

 

 

 

PROBLEMS

 

 

POSSIBLE AREAS OF

 

 

RECOMMENDED

 

 

(SYMPTOMS)

 

 

MISADJUSTMENT(S)

 

 

COURSE OF ACTION

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WELDING PROBLEMS

 

 

 

 

 

Arc is unstable Poor starting

 

 

1. Check for correct input voltage

 

 

 

 

 

 

 

 

 

to machine 115vac.

 

 

 

 

 

 

 

 

2.

Check for proper electrode

 

 

 

 

 

 

 

 

 

polarity for process.

 

 

 

 

 

 

 

 

3.

Check gun tip for wear or dam-

 

 

 

 

 

 

 

 

 

age and proper size Replace.

 

 

Contact your local Lincoln

 

 

 

 

 

4.

Check for proper gas and flow

 

 

 

 

 

 

 

 

 

Authorized Field Service Facility.

 

 

 

 

 

 

rate for process. (For MIG only.)

 

 

 

 

 

 

 

 

5.

Check work cable for loose or

 

 

 

 

 

 

 

 

 

faulty connections.

 

 

 

 

 

 

 

 

6.

Check gun for damage or

 

 

 

 

 

 

 

 

 

breaks.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7.

Check for proper drive roll orien-

 

 

 

 

 

 

 

 

 

tation and alignment.

 

 

 

 

 

 

 

 

8.

Check liner for proper size.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your

LOCAL AUTHORIZED LINCOLN ELECTRIC FIELD SERVICE FACILITY for assistance before you proceed.

PRO 100

Image 30
Contents PRO Safety California Proposition 65 WarningsElectric Shock can kill Welding Sparks can cause fire or explosion IiiPrécautions DE Sûreté Sûreté Pour Soudage a L’ArcPlease Examine Carton and Equipment For Damage Immediately On-Line Product RegistrationTable of Contents Installation Technical Specifications PROInstallation Safety PrecautionsRead entire installation section before starting Identify and Locate ComponentsOutput Connections Work Clamp InstallationSelect Suitable Location StackingConnecting Gun Cable to the PRO GUN InstallationWork Cable Installation GAS Connection OptionalFigure A.5 Code Requirements for Input Connections Input ConnectionsRequirements For Rated Output Requirements For CSA Rated OutputFumes and Gases can be dangerous Observe all safety information throughout this manual1OPERATIONB-1 Welding Sparks can cause fire or explosionOperation Wire Loading Welding OperationsSequence of Operation Friction Brake Adjustments Wire ThreadingCleaning Tip And Nozzle Process GuidelinesMaking a Weld Changing Machine Over to Feed Other Wire Sizes Welding with Gmaw MIGOverload Protection Application Chart 025 .035 0.6 0.9 mm wire PRO AccessoriesOptional Accessories MIG ConversionMaintenance Maintenance Safety PrecautionsRoutine Maintenance For Magnum 100L GUN GUN and Cable MaintenanceConfiguration of Components in Wire Feeding System Contact Tip Cable Liner Drive RollComponent Replacement Procedures Changing the Contact TIPChanging Drive Roll Changing Liner Liner trim lengthGUN Handle Parts Figure D.31TROUBLESHOOTINGE-1 HOW to USE Troubleshooting GuideProblems Possible Areas Symptoms Misadjustments TroubleshootingTroubleshooting Guide Recommended Course of ActionFeeding Problems Welding Problems Diagrams Wiring DiagramPRO Precaucion Warnung