Lincoln Electric Comprehensive Troubleshooting Guide for Lincoln Welder Manuals: SAE-300 Problems and Solutions

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TROubLEShOOTING

Observe all Safety Guidelines detailed throughout this manual

PRObLEMS

(SYMPTOMS)

POSSIbLE AREAS OF MISADJuSTMENTS(S)

RECOMMENDED

COuRSE OF ACTION

Welder starts but fails to generate 1.

Generator or exciter brushes

current.

may be loose or missing.

2.

Exciter may not be operating.

3.

Field circuit of generator or

 

exciter may be open.

If all recommended possible areas of

4.Exciter may have lost excita- misadjustment have been checked

tion.

and the problem persists, Contact

 

your local Lincoln Authorized

5.Series field and armature cir- Field Service Facility. cuit may be open-circuited.

Welding arc is loud and spatters

1.

Current setting may be too

excessively.

 

high.

 

2.

Polarity may be wrong.

 

 

 

Welding current too great or too

1.

Exciter output low causing low

small compared to indication on

 

output compared to dial indica-

the dial.

 

tion.

2.Operating speed too low or too high.

3.“Current Control” shaft and 3. With current control against the

handle may have turned slight-

minimum stop, set pointer to with-

ly in the insulated bushing of

in 1/8” of the last scale division.

the current control brush hold-

 

er, caused by turning handle

 

too hard against one of the

 

stops.

 

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.

SAE-300®

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Contents SAE-300 Safety California Proposition 65 WarningsElectric ShOCK can kill ARC Rays can burnFuMES and Gases can be dangerous Welding and CuTTING Sparks can Cause fire or explosion Cylinder may explode if damagedIii PRÉCAuTIONS DE Sûreté Sûreté Pour Soudage a L’ArcPlease Examine Carton and Equipment For Damage Immediately On-Line Product RegistrationTAbLE of Contents Installation TEChNICAL Specifications SAE-300Description Volts @ Rated Amps CycleDesign FEATuRES General DescriptionReceptacle PRE-OPERATION Installation Trailer see Optional FEATuRESLocation / Ventilation MAChINE GROuNDINGPRE-OPERATION Service OILCooling System 5INSTALLATIONA-5 BATTERY ChARGINGTo prevent ExPLOSION when To prevent Electrical Damage whenOperation ENGINE OPERATIONStarting ThE SAE-300 404D-22 Diesel Engine Cold WEAThER StartingWelder Operation Engine bREAK-INStick / TIG Welding MIG Welding Idler OperationAccessories Optional FEATuRES Field InstalledWire Feeder Options Maintenance Safety PRECAuTIONSGeneral INSTRuCTIONS Cooling SystemIdler Maintenance NameplatesPuRGING AIR from FuEL System Perkins 404D-22 Engine Vent Screw Priming LeverMaintenance Gfci Testing and Resetting PROCEDuRETROubLEShOOTING HOW to uSE TROubLEShOOTING GuIDEPRObLEMS SymptomsPOSSIbLE CAuSE RecommendedPOSSIbLE Areas of MISADJuSTMENTSS Your local Lincoln AuthorizedElectronic Idler TROubLEShOOTING GuIDE Open ClosedAuxiliary Power Load is Turned on Defective -- Will Not CloseAuthorized Field Service Facility Contact your local LincolnWater passage. Flush the system Ing on Faulty light wiring Diagrams S10766-14 Atenção Atenção