Lincoln Electric DC-400 specifications HOW to USE Troubleshooting Guide

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TROUBLESHOOTING

E-1

 

 

 

HOW TO USE TROUBLESHOOTING GUIDE

WARNING

Service and Repair should only be performed by Factory Trained Personnel. Unauthorized repairs performed on this equipment may result in danger to the technician and machine operator and will invalidate your factory warranty. For your safety and to avoid Electrical Shock, please observe all safety notes and precautions detailed throughout this manual.

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This Troubleshooting Guide is provided to help you locate and repair possible machine malfunctions. Simply follow the three-step procedure listed below.

Step 1. LOCATE PROBLEM (SYMPTOM).

Look under the column labeled “PROBLEM (SYMP- TOMS)”. This column describes possible symptoms that the machine may exhibit. Find the listing that best describes the symptom that the machine is exhibiting.

Step 2. POSSIBLE CAUSE.

The second column labeled “POSSIBLE CAUSE” lists the obvious external possibilities that may contribute to the machine symptom.

Step 3. RECOMMENDED COURSE OF ACTION This column provides a course of action for the Possible Cause, generally it states to contact your local Authorized Field Service Facility.

If you do not understand or are unable to perform the Recommended Course of Action safely, contact your local Authorized Field Service Facility.

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.

DC-400

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Contents RED-D-ARC DC-400 10699 11038 11085 11128 11347Safety California Proposition 65 WarningsElectric Shock can kill Welding Sparks can cause fire or explosion IiiPrécautions DE Sûreté Sûreté Pour Soudage a L’ArcPlease Examine Carton and Equipment For Damage Immediately On-Line Product RegistrationTable of Contents Section D ViiSection E Installation Technical Specifications DC-400Output Maximum Open Circuit Voltage Auxiliary Power Height Width Depth WeightMachine Load Cable400A 100% 500A 50% Duty Lengths CycleRemote Control Adapter Cable K864 Multiprocess Switch K804-1 Multiprocess Switch Connection and Operation Purpose Connection of DC-400 to LN-22 or LN-25Design OperationAuxiliary Power Connections Remote Control ConnectionsCase Features Output ConnectionsMachine & Circuit Protection Thermal Protection Light Multiprocess Switch STICK, TIG or AIR/CARBON ARCOperation Electric Shock can killARC Control Switch Output Terminals SwitchVoltmeter Switch Rating Plate ARC Force Control DialIP21 Degree of protection provided by the enclosureEarth Ground Connection 4OPERATIONB-4Signifying the Earth Ground Connection DC-400 Recommended Processes & Equipment Power Source Operation Voltmeter SwitchDuty Cycle and Time Period Duty Cycle Amps VoltsARC Force Control Dial Effective only in CC mode ARC Control Switch Effective only in CV FCAW/GMAW modeFront View of 14-PIN Connector Receptacle PIN Lead no FunctionTerminal Strip Connections Machine and Circuit Protection Factory Installed Options Accessories Field Installed Options HI-FREQUENCY KIT K799 Codes 8634 and Above only Undercarriages K817, K817R, K8411MAINTENANCED-1 Routine MaintenanceTroubleshooting HOW to USE Troubleshooting GuideContact your local Authorized Field Service Facility Output Control Local Service Facility Your local Authorized FieldProcedure for Replacing PC Boards Connecting the Remote Control to the MachineFault Protection Operation Power I/0 Switch CheckRemote Control Check Power Diode TestPower Rectifier Bridge Assembly Checking Procedure Power Silicon Controlled Rectifier TestDiagrams Wiring Diagram for CodeWiring Diagram for Code 10699 and Above Pasted inside Number11085, 11128 Power Rectifier Bridge Diagram Dimension Print Type M12244-7 DC-400 32.00 15.39 30.92 30.02 +.11DC-400 Precaucion Warnung
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