Lincoln Electric IM806 manual Troubleshooting

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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

No welder or output power.

1.

Open in miscellaneous leads.

 

2.

Open lead in flashing or field

 

 

circuit.

 

3.

Faulty rotor.

 

4.

Faulty Potentiometer (R1).

 

5.

Faulty stator Field winding.

 

6.

Faulty Field rectifier (D2).

 

7.

Faulty P.C. Board.

 

 

 

Engine will not idle down to low

1.

Idler switch on High Idle.

speed.

 

 

 

2.

Insufficient voltage present

 

 

between terminals #213 and

 

 

#5E. (Voltage should be 12V

 

 

DC).

 

3.

External load on welder or

 

 

auxiliary power.

 

4.

Faulty wiring in solenoid circuit.

 

5.

Faulty idler solenoid.

 

6.

Faulty P.C. Board.

 

 

 

Engine will not go to high idle when

1.

Poor work lead connection to

attempting to weld.

 

work.

 

2.

No voltage signal from the

 

 

current sensor.

 

3.

No open circuit voltage on

 

 

output studs.

If all recommended possible areas of misadjustment have been checked and the problem persists, Contact your local Authorized Field Service Facility.

4.Faulty 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 Authorized Field Service Facility for technical troubleshooting assistance before you proceed.

WELDMARK 225

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Contents Weldmark Safety California Proposition 65 WarningsElectric Shock can kill Cylinder may explode if damaged Précautions DE Sûreté Sûreté Pour Soudage a L’ArcThank You Table of Contents Installation Height Width Depth WeightWeldmark Specifications Spark Arrester Installation InstructionsMachine Grounding LiftingTotal Combined Length PRE-OPERATION ServiceWelding Output Cables Electrode and Work Cables GasolineHigh Altitude Operation Connection of Wire FeedersAngle of Operation Location / VentilationInstructions Additional Safety PrecautionsAuxiliary Power Connection of K930- TIG Module to the WeldmarkDuplex Receptacles Motor StartingThese Devices Without Auxiliary Power While Welding Simultaneous Welding and PowerStandby Power Connections Connection of Weldmark 225 to Premises Wiring Engine Features Design FeaturesOther Features OperationRange Switch 20 H.P. CommandPolarity Switch Control SwitchBREAK-IN Period Stopping the EngineDuty Cycle Wire Feed Welding Processes Constant VoltageWelding Process Stick Constant Current WeldingHigh Accessories K1745-1 Single GAS Cylinder HolderStick Wire FeedRecommended Equipment TIGRoutine Maintenance MaintenanceSafety Precautions Engine OIL ChangeOIL Filter Change RangerEngine Adjustments Gfci Receptacle Testing and Reset Ting Procedure Troubleshooting HOW to USE Troubleshooting GuideTroubleshooting Troubleshooting Weldmark 225 Wiring Diagram Code DiagramsWeldmark 225 / LN-25 Across the ARC Connection Diagram Connection of Weldmark 225 to LN-7 & K240 Contactor KITM17215-2 30-98E Precaucion Warnung Manufactured by Lincoln Electric Company