Lincoln Electric IM703-A manual Auxiliary Power Connections, Figure A.3

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A-7

INSTALLATION

A-7

 

 

 

FIGURE A.3

1/2-13

Stud

For Gas Supply hose with 5/8-18RH male (Provided with Weld Package model)

For Coolant Supply Hoses

with 5/8-18LH male (Provided with Weld Package model

or Under-Cooler Cart)

AUXILIARY POWER CONNECTIONS

The Precision TIG machines provide a standard NEMA 5-15R duplex receptacle, located on the upper case back on the torch side of the machine:

•The bottom outlet of this duplex receptacle provides switched 115VAC power for the Under-Cooler, or Water Solenoid accessory. This Cooler receptacle turns on when the arc starts and remains on for about 8 minutes after the arc goes out (with the Fan-As- Needed machine cooling fan, see Maintenance Section), so the Cooler’s fan and water pump will not run continuously in idle, but will run while welding.

•The top outlet of this duplex receptacle provides at least 8 amps at 115VAC, whenever the Precision TIG Power switch is ON. This auxiliary circuit is intended for running 115VAC accessories or small power tools. Note: Some types of equipment, especially pumps and large motors, have starting currents which are significantly higher than their running current. These higher starting currents may cause the circuit breaker to open. (See next paragraph)

•Both the receptacle circuits are protected from shorts and overloads by a 15 amp circuit breaker, located above the receptacle. if the breaker trips its button pops out exposing a red ring. When the circuit break- er cools the button can be reset by pressing it back in.

Note: When the breaker trips not only will the auxil- iary and cooler power be interrupted, but so will the power to the shielding gas solenoid and machine cooling fan.

The Precision TIG Export models also provide a grounded 220vac Euro type Schuko receptacle and a 5 amp circuit breaker, located on the upper case back on the reconnect side of the machine, intended for use with a 220vac water cooler.

REMOTE CONTROL (If Used)

The Foot Amptrol (included with the Precision TIG Welding Package), or other Remote accessory, is installed by routing the plug of its control cable up through the left cable strain relief hole provided in the base (see Figure A.2), then connecting the 6-pin plug to the mating Remote receptacle behind the stud panel cover. (See Operation Section B-2 for mating plug wiring.)

Note: If the Precision TIG is equipped with an Under- Cooler or Under-Storage unit, the Foot Pedal (or other remote control accessory) and coiled control cable, or excess cable length, may be conveniently stored in the drawer while remaining connected.

PRECISION TIG 375

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Contents Safety Depends on You Precision TIGSafety California Proposition 65 WarningsElectric Shock can kill Welding Sparks can cause fire or explosion IiiPrécautions DE Sûreté Sûreté Pour Soudage a L’ArcThank You Table of Contents Duty Cycle-Applications InstallationRated Input Single Phase only Volts at Rated Amperes AmpsTemperature Ranges Recommended Input Wire and Fuse SizesPhysical Dimensions Additional Output CapacitySafety Precautions Input and Grounding Connections Stick Electrode Cable Connection Output CABLES, Connections and LimitationsWork Cable Connection TIG Torch Connection Figure A.2Auxiliary Power Connections Figure A.3Robotic Interface Connection Figure A.4Pipe Thawing OperationProduct Description Welding SparksProcess Limitations Recommended Processes and EquipmentRecommended Processes Equipment LimitationsControls and Settings Figure B.1 Control PanelMinimum Output Control and Display Switch Do not USE 4-STEP if Using AN Amptrol Remote Advanced Panel ControlsPulse Background Current Control Stick Welding Features Internal SET UP ControlsTIG Welding Features Figure B.3 Figure B.4 Using the Start Pedal Foot Amptrol K870-1 TIG Weld Cycle ChartSetup Guidelines for TIG Welding with AN Amptrol Figure B.5 Gtaw Process Making a TIG Weld with AN AmptrolSmaw Process Field Installed Options AccessoriesFactory Installed Options Optional EquipmentRoutine and Periodic Maintenance MaintenanceSafety Precautions Overload ProtectionSpark GAP Adjustment Service ProceduresComponent Access UNDER-COOLER ServiceTroubleshooting HOW to USE Troubleshooting GuidePossible Areas SymptomsOutput Problems Course of ActionMeter Problems GAS ProblemsHI-FREQ Problems Preset & Output Control Problems Stick Welding Problems TIG Welding ProblemsTIG Problems Precision TIG 375 Wiring Diagram for Code MID Precision TIGDimension Print K1833-1 DOMESTIC, K1833-2 Canada and K1834-1 Export Precision TIG Warnung Aviso DE
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