Lincoln Electric SA-250 manual Defective -- Will Not Close, Auxiliary Power Load is Turned on

Page 25

E-6

TROUBLESHOOTING

E-6

 

 

 

 

ELECTRONIC IDLER TROUBLESHOOTING GUIDE

 

With Idler Control Switch in the AUTO Position,

Engine Will Not Pick Up Speed When:

The Arc is Struck

Reed Switch in Weld Circuit

Defective -- Will Not Close

To Check: Short the Red Lead on P.C. Board to Welder Frame.

The Auxiliary Power Load is Turned ON

Power Load Too Small

Try Load Above 150 Watts

Engine Does Not Pick Up Speed

Engine Picks Up Speed

1.Check for Break in Red Lead and Repair

2.Replace Reed Switch in Weld Circuit.

Engine Does Not Pick Up

Speed

1.Check Continuity of Idler Solenoid Coil (8.5-9.0 ohms) and Replace as Required.

2.Check for Jamming of the Idler Solenoid Mechanism.

3.Check Idler Circuit Wiring and Repair as Required.

4.Replace Idler P.C. Board.

1.Check Continuity of Idler Solenoid Coil (8.5-9.0 ohms) and Replace as Required.

2.Check for Jamming of the Idler Solenoid Mechanism.

3.Check for Continuity of Current Transformer (Toroid). Replace as Required.

4.Check Idler Circuit Wiring and Repair as Required.

5.Replace Idler P.C. Board.

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.

SA-250

Image 25
Contents SA-250 California Proposition 65 Warnings SafetyElectric Shock can kill Iii Welding Sparks can cause fire or explosionSûreté Pour Soudage a L’Arc Précautions DE SûretéPlease Examine Carton and Equipment For Damage Immediately Thank YouTable of Contents Technical Specifications SA-250 K1283-8 InstallationHeight Width Depth Weight AIR Cleaner Engine Idler Muffler Engine ProtectionExhaust Spark Arrester PRE-OPERATION InstallationLocation / Ventilation Machine GroundingPolarity Control and Cable Sizes PRE-OPERATION ServiceOIL FuelBattery Charging 4INSTALLATIONA-4To prevent Explosion when To prevent Electrical Damage whenOperation Safety PrecautionsGeneral Description Control PanelCold Weather Starting Engine OperationStarting the SA-250 Perkins Diesel EngineControl of Welding Current Welder OperationIdler Operation Auxiliary Power Optional Features Field Installed AccessoriesWater Valve Kit K844-1 SA-250 Maintenance MaintenancePurging AIR from Fuel System Perkins 104-22 Engine Idler MaintenanceNameplates Vent Screw Priming LeverEngine Service HOW to USE Troubleshooting Guide TroubleshootingAuthorized Field Service Facility Welder TroubleshootingContact your local Lincoln Contact your local Lincoln Authorized Field Service Facility Engine TroubleshootingFaulty Charging Loose fan belt Open Closed Electronic Idler Troubleshooting GuideDefective -- Will Not Close Auxiliary Power Load is Turned onDiagrams SA-250 Wiring DiagramDimension Print SA-250 SA-250 New Lessons in Arc Welding How To Read Shop DrawingsNeed Welding Training? Basic CoursePrecaucion Warnung
Related manuals
Manual 28 pages 46.12 Kb