Lincoln Electric DX450 specifications Faulty control cable. Repair or

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E-5

TROUBLESHOOTING

E-5

 

 

 

 

Observe all Safety Guidelines detailed throughout this manual

 

 

 

 

PROBLEMS

(SYMPTOMS)

POSSIBLE

CAUSE

RECOMMENDED

COURSE OF ACTION

No welding power output.

1. Poor work lead connection to

 

 

 

 

 

work. Make sure work clamp is

 

 

 

 

 

tightly connected to clean base

 

 

 

 

 

metal.

 

 

 

 

 

2.

"Weld Terminals" switch in wrong

 

 

 

 

 

position. Place switch in "Weld

 

 

 

 

 

Terminals On" position when

 

 

 

 

 

welding without control cable.

 

 

 

 

3.

Faulty PC board or welder alterna-

 

 

 

 

 

tor.

 

 

 

 

 

 

 

 

Welder has output but no control.

1. Poor remote/control cable connec-

 

 

 

 

 

tion to 3-pin or 14-pin connector.

 

 

 

 

 

Check connections.

 

 

 

 

 

2.

Faulty remote cable or faulty wire

 

 

 

 

 

feeder or wire feeder cable.

 

 

 

 

 

Replace if necessary.

 

 

 

 

3.

Faulty control potentiometer or PC

 

 

 

 

 

board.

 

 

 

 

 

 

 

 

If all recommended possible

areas

 

 

 

 

 

Wire feeder does not work when

1. Wire Feeder Power circuit breaker

of misadjustment have

been

control cable is connected to 14 pin

 

open. Check 42V beaker and

checked and the problem persists,

connector.

 

reset if tripped.

 

Contact your local Authorized

 

 

2.

Faulty control cable. Repair or

Field Service Facility.

 

 

 

 

replace cable.

 

 

 

 

 

3.

Faulty wire feeder.

Replace wire

 

 

 

 

 

feeder.

 

 

 

 

 

 

 

 

No auxiliary power.

1. Open circuit breakers. Reset

 

 

 

 

 

breakers. If breakers keep tripping

 

 

 

 

 

reduce power draw.

 

 

 

 

 

2.

GFCI module may have tripped.

 

 

 

 

 

Follow “GFCI Module Testing and

 

 

 

 

 

Resetting Procedure” in the MAIN-

 

 

 

 

 

TENANCE section of this manual.

 

 

 

 

3.

Faulty connections to auxiliary

 

 

 

 

 

receptacles. Check connections.

 

 

 

 

4.

Faulty PC board or welder alterna-

 

 

 

 

 

tor.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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.

DX450 (RED-D-ARC)

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Contents RED-D-ARC Safety DX450 RED-D-ARCElectric Shock can kill Welding and Cutting Sparks can Cause fire or explosion IiiPrécautions DE Sûreté Sûreté Pour Soudage a L’ArcThank You Customer Assistance PolicyTable of Contents Section D Section ESection F SeriesInstallation Technical Specifications DX450 K2712-1Safety Precautions VRD Voltage Reduction DeviceLocation and Ventilation PRE-OPERATION Engine Service Vehicle MountingTowing OILBattery Connection Remote ControlFuel Engine Cooling SystemElectrical Connections Auxiliary Power Receptacles Standby Power ConnectionsDuplex Receptacles and Gfci Modules Connection of DX450 to Premises Wiring XyzConnection of Lincoln Electric Wire Feeders Connection of LN-7 or LN-8 to the DX450 Shut the welder offConnection of LN-15 to the DX450 Shut the welder off Across The-Arc ModelInstallation Operation General DescriptionWeld Mode Selector Switch Figure B.1Wire Feeder Voltmeter Switch Table B.1Engine Controls Glow Plug Push ButtonStarting the Engine Table B.2Stopping the Engine Welder OperationConstant Current CC-STICK Welding Duty CycleTIG Welding Typical Current Ranges 1 for Tungsten ELECTRODES2Table B.3 Wire WELDING-CV Auxiliary PowerARC Gouging PlusAccessories Field Installed Options / AccessoriesWire Feeder Options TIG OptionsMaintenance Routine MaintenanceAIR Cleaner Engine OIL ChangeOIL Filter Change Servicei Instructions Cooling System Tightening the FAN BeltBleeding the Fuel System Engine Adjustment Battery MaintenanceServicing Optional Spark Arrestor Welder / Generator Maintenance Gfci Module Testing and Resetting ProcedureTroubleshooting HOW to USE Troubleshooting GuideField Service Facility Contact your local AuthorizedWelding without a control cable High idle does not work Faulty control cable. Repair or Service Facility Your local Authorized FieldDiagrams DX450 RED-D-ARCDiagrams Diagrams Diagrams Diagrams Diagrams DX450 RED-D-ARC Wiring Diagram Dimension PrintDX450 RED-D ARCDX450 RED-D-ARC DX450 RED-D-ARC Precaucion Warnung