Lincoln Electric DC-400 specifications HI-FREQUENCY KIT K799 Codes 8634 and Above only

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C-2	ACCESSORIES	C-2

HI-FREQUENCY KIT

(K799 CODES 8634 AND ABOVE ONLY)

Kit supplies the high frequency plus gas valve for DC TIG welding. The DC-400 is shipped with proper R.F. bypass circuitry installed to protect the control circuit when welding with a HI-FREQ unit. K844 Water Valve Option Kit can be used with K799 when TIG welding with water cooled torches.

OPTIONAL AMPTROL ADAPTER FOR K799 HI-

FREQUENCY KIT (K915-1 REQUIRES K864

ADAPTER OR K843 ADAPTER)

A “V” cable to connect a K799 Hi-Freq kit (5-pin con- nector) with either a K963 Hand Amptrol or a K870 Foot Amptrol (6-pin connector) and the machine. The cable going to the machine has a 6-pin connector which requires either a K864 adapter to connect with the 14-pin connector on the machine or a K843 adapter to connect to terminals 75, 76, 77 and the case grounding screw on the machine.

UNDERCARRIAGES (K817, K817R, K841)

For easy moving of the machine, optional undercar- riages are available with either steel (K817) or rubber tired (K817R) wheels or a platform undercarriage (K841) with mountings for two gas cylinder at rear of welder.

Install per instructions provided with undercarriage.

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 E ViiSection D Output Maximum Open Circuit Voltage Auxiliary Power InstallationTechnical Specifications DC-400 Height Width Depth Weight400A 100% 500A 50% Machine LoadCable Duty Lengths CycleRemote Control Adapter Cable K864 Multiprocess Switch K804-1 Design Multiprocess Switch Connection and Operation PurposeConnection of DC-400 to LN-22 or LN-25 OperationCase Features Auxiliary Power ConnectionsRemote Control Connections Output ConnectionsMachine & Circuit Protection Thermal Protection Light Multiprocess Switch STICK, TIG or AIR/CARBON ARCOperation Electric Shock can killVoltmeter Switch Rating Plate ARC Control SwitchOutput Terminals Switch ARC Force Control DialIP21 Degree of protection provided by the enclosureSignifying the Earth Ground Connection DC-400 4OPERATIONB-4Earth Ground Connection Recommended Processes & Equipment Duty Cycle and Time Period Power Source OperationVoltmeter Switch Duty Cycle Amps Volts Front View of 14-PIN Connector Receptacle ARC Force Control Dial Effective only in CC mode ARC Control Switch Effective only in CV FCAW/GMAW mode PIN Lead no FunctionTerminal Strip Connections Machine and Circuit ProtectionField Installed Options AccessoriesFactory 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 FieldFault Protection Operation Procedure for Replacing PC BoardsConnecting the Remote Control to the Machine Power I/0 Switch CheckPower Rectifier Bridge Assembly Checking Procedure Remote Control CheckPower Diode Test 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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