Lincoln Electric SAE-300 manual PRObLEMS, Symptoms, POSSIbLE CAuSE, Recommended, COuRSE of Action

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E-2

TROubLEShOOTING

E-2

 

 

 

 

Observe all Safety Guidelines detailed throughout this manual

 

 

 

 

PRObLEMS

(SYMPTOMS)

POSSIbLE

CAuSE

RECOMMENDED

COuRSE OF ACTION

Machine fails to hold the output (heat) consistently.

1.Rough or dirty commutator.

2.Brushes may be worn down to Limit.

3.Field circuit may have variable

resistance connection or inter-

mittent open circuit due to If all recommended possible areas of

loose connection or broken misadjustment have been checked

wire.and the problem persists, Contact your local Lincoln Authorized

4.Electrode lead or work lead Field Service Facility. connection may be poor.

5.Wrong grade of brushes may have been installed on gener- ator.

6.Field rheostat may be making poor contact and overheating.

7. “Current Control” may not be

7. Check for loose or missing set

operating properly.

screw in control handles.

8. “Current Control” brush holder

8. Inspect. Replace needed parts.

contact springs may be worn out

Clean internal contact surface of

or missing. Contact surface may

control device. Do not lubricate.

be dirty, rough and pitted.

Smooth rough surfaces.

9. “Current Control” brush holder

9. If brush holder internal contact

support stud and mating contact

surface is pitted and burned,

surfaces may be dirty or pitted

replace the brush holder and

and burned.

support stud. If the contact sur-

 

face is dirty, clean off the brush

 

holder stud and internal contact

 

surface. Apply mixture of three

 

parts silicone grease and one

 

part zinc powder (by weight) to

 

stud.

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 California Proposition 65 Warnings SafetyFuMES and Gases can be dangerous Electric ShOCK can killARC Rays can burn Iii Welding and CuTTING Sparks can Cause fire or explosionCylinder may explode if damaged Sûreté Pour Soudage a L’Arc PRÉCAuTIONS DE SûretéOn-Line Product Registration Please Examine Carton and Equipment For Damage ImmediatelyTAbLE of Contents Volts @ Rated Amps Cycle InstallationTEChNICAL Specifications SAE-300 DescriptionReceptacle Design FEATuRESGeneral Description MAChINE GROuNDING PRE-OPERATION InstallationTrailer see Optional FEATuRES Location / VentilationCooling System PRE-OPERATION ServiceOIL To prevent Electrical Damage when 5INSTALLATIONA-5BATTERY ChARGING To prevent ExPLOSION whenCold WEAThER Starting OperationENGINE OPERATION Starting ThE SAE-300 404D-22 Diesel EngineStick / TIG Welding Welder OperationEngine bREAK-IN Idler Operation MIG WeldingOptional FEATuRES Field Installed AccessoriesWire Feeder Options Cooling System MaintenanceSafety PRECAuTIONS General INSTRuCTIONSVent Screw Priming Lever Idler MaintenanceNameplates PuRGING AIR from FuEL System Perkins 404D-22 EngineMaintenance PROCEDuRE Gfci Testing and ResettingHOW to uSE TROubLEShOOTING GuIDE TROubLEShOOTINGRecommended PRObLEMSSymptoms POSSIbLE CAuSEYour local Lincoln Authorized POSSIbLE Areas of MISADJuSTMENTSSOpen Closed Electronic Idler TROubLEShOOTING GuIDEDefective -- Will Not Close Auxiliary Power Load is Turned onContact your local Lincoln Authorized Field Service FacilityWater passage. Flush the system Ing on Faulty light wiring Diagrams S10766-14 Atenção Atenção