Lincoln Electric SA-250 manual Electronic Idler Troubleshooting Guide, Open Closed

Page 24

E-5

TROUBLESHOOTING

E-5

 

 

 

 

ELECTRONIC IDLER TROUBLESHOOTING GUIDE

 

With Idler Control Switch in the Auto Position,

Engine Will Not Return to Low Idle in Approximately 15 Seconds

After Welding and Auxiliary Loads are Removed

Set Idler Control Switch

to the Auto Position

Check for Continuity through Idler

Control Switch

 

 

Open

 

 

 

Closed

 

 

 

 

 

 

 

 

 

Measure DC Voltage on

Replace Idler

 

 

Idler Solenoid Coil

Control Switch

 

 

 

 

 

 

 

 

 

 

12 VDC

0 VDC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Check Continuity of

Check for Jamming

 

 

Reed Switch in Weld Circuit

of the Idler Solenoid

 

 

 

 

 

 

Mechanism or a broken

 

 

 

 

 

 

 

 

 

 

 

 

Return Spring

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Open

Closed

 

 

 

 

 

 

 

1. Check Wiring in

Replace Reed

Idler Solenoid

Switch

Circuit

 

 

2.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 24
Contents SA-250 Safety California Proposition 65 WarningsElectric Shock can kill Welding Sparks can cause fire or explosion IiiPrécautions DE Sûreté Sûreté Pour Soudage a L’ArcThank You Please Examine Carton and Equipment For Damage ImmediatelyTable of Contents Installation Technical Specifications SA-250 K1283-8Height Width Depth Weight AIR Cleaner Engine Idler Muffler Engine ProtectionPRE-OPERATION Installation Exhaust Spark ArresterLocation / Ventilation Machine GroundingPRE-OPERATION Service Polarity Control and Cable SizesOIL Fuel4INSTALLATIONA-4 Battery ChargingTo prevent Explosion when To prevent Electrical Damage whenSafety Precautions OperationGeneral Description Control PanelEngine Operation Cold Weather StartingStarting the SA-250 Perkins Diesel EngineWelder Operation Control of Welding CurrentIdler Operation Auxiliary Power Accessories Optional Features Field InstalledWater Valve Kit K844-1 SA-250 Maintenance MaintenanceIdler Maintenance Purging AIR from Fuel System Perkins 104-22 EngineNameplates Vent Screw Priming LeverEngine Service Troubleshooting HOW to USE Troubleshooting GuideWelder Troubleshooting Authorized Field Service FacilityContact your local Lincoln Engine Troubleshooting Contact your local Lincoln Authorized Field Service FacilityFaulty Charging Loose fan belt Electronic Idler Troubleshooting Guide Open ClosedAuxiliary Power Load is Turned on Defective -- Will Not CloseSA-250 Wiring Diagram DiagramsDimension Print SA-250 SA-250 How To Read Shop Drawings New Lessons in Arc WeldingNeed Welding Training? Basic CoursePrecaucion Warnung
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