Lincoln Electric DX450 specifications Installation

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A-9

INSTALLATION

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WARNING

Connection of the LN-25 to the DX450

Shut off welder before making any electrical con- nections.

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The LN-25 with or without an internal contactor may be used with the DX450 . See the appropriate connec- tion diagram in Section F.

1.Shut the welder off.

2.For electrode Positive, connect the electrode cable from the LN-25 to the "+" terminal of the welder and work cable to the "-" terminal of the welder. For electrode Negative, connect the elec- trode cable from the LN-25 to the "-" terminal of the welder and work cable to the "+" terminal of the welder.

3.Attach the single lead from the front of the LN-25 to work using the spring clip at the end of the lead. This is a control lead to supply current to the wire feeder motor; it does not carry welding current.

4.Set the MODE switch to the "CV-WIRE " position.

5.Set the "WELD TERMINALS" switch to "WELD

TERMINALS ON"

6.Set the "ARC CONTROL" knob to "0" initially and adjust to suit.

7.Set the "IDLE" switch to the "AUTO" position. When not welding, the DX450 engine will be at the low idle speed. If you are using an LN-25 with an internal contactor, the electrode is not ener- gized until the gun trigger is closed.

8.When the gun trigger is closed, the current sens- ing circuit will cause the DX450 engine to go to the high idle speed, the wire will begin to feed and the welding process started. When welding is stopped, the engine will revert to low idle speed after approximately 12 seconds unless welding is resumed.

CAUTION

If you are using an LN-25 without an internal con- tactor, the electrode will be energized when the DX450 is started.

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Spool Gun (K487-25) and Cobramatic to DX450

•Shut the welder off.

•Connect per instructions on the appropriate connec- tion diagram in Section F.

DX450 (RED-D-ARC)

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Contents RED-D-ARC DX450 RED-D-ARC SafetyElectric Shock can kill Iii Welding and Cutting Sparks can Cause fire or explosionSûreté Pour Soudage a L’Arc Précautions DE SûretéCustomer Assistance Policy Thank YouTable of Contents Section E Section DSection F SeriesTechnical Specifications DX450 K2712-1 InstallationLocation and Ventilation Safety PrecautionsVRD Voltage Reduction Device Vehicle Mounting PRE-OPERATION Engine ServiceTowing OILRemote Control Battery ConnectionFuel Engine Cooling SystemElectrical Connections Duplex Receptacles and Gfci Modules Auxiliary Power Receptacles Standby Power Connections Xyz Connection of DX450 to Premises WiringConnection of LN-7 or LN-8 to the DX450 Shut the welder off Connection of Lincoln Electric Wire FeedersConnection of LN-15 to the DX450 Shut the welder off Across The-Arc ModelInstallation General Description OperationFigure B.1 Weld Mode Selector SwitchTable B.1 Wire Feeder Voltmeter SwitchGlow Plug Push Button Engine ControlsStarting the Engine Table B.2Welder Operation Stopping the EngineConstant Current CC-STICK Welding Duty CycleTable B.3 TIG WeldingTypical Current Ranges 1 for Tungsten ELECTRODES2 Auxiliary Power Wire WELDING-CVARC Gouging PlusField Installed Options / Accessories AccessoriesWire Feeder Options TIG OptionsRoutine Maintenance MaintenanceOIL Filter Change AIR CleanerEngine OIL Change Servicei Instructions Bleeding the Fuel System Cooling SystemTightening the FAN Belt Servicing Optional Spark Arrestor Engine AdjustmentBattery Maintenance Gfci Module Testing and Resetting Procedure Welder / Generator MaintenanceHOW to USE Troubleshooting Guide TroubleshootingContact your local Authorized Field Service FacilityWelding without a control cable High idle does not work Faulty control cable. Repair or Your local Authorized Field Service FacilityDX450 RED-D-ARC DiagramsDiagrams Diagrams Diagrams Diagrams Diagrams DX450 RED-D-ARC Wiring Diagram Print DimensionDX450 RED-D ARCDX450 RED-D-ARC DX450 RED-D-ARC Precaucion Warnung
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