Lincoln Electric IM703-A manual Recommended Processes and Equipment, Process Limitations

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B-2	OPERATION	B-2

RECOMMENDED PROCESSES AND EQUIPMENT

RECOMMENDED PROCESSES

The Precision TIG 375 is recommended for the TIG (GTAW) and Stick (SMAW) welding processes within its output capacity range of 2 amps DC, or 5 amps AC, to 420 amps AC/DC. It is compatible with most Magnum TIG accessories (refer Equipment Limitations), as well as many industry standard items, such as TIG torches, hoses, and water coolers.

PROCESS LIMITATIONS

Precision TIG machines are not recommended for arc gouging due to it's limited output capacity, and are also not recommended for pipe thawing.

EQUIPMENT LIMITATIONS

The Precision TIG machines are protected from over- loads beyond the electrical ratings and duty cycles, per the Specifications Section A-1, A-2, with Thermostat protection of the primary and secondary transformer coils.

The Precision TIG machines do not have Hi-Freq. available at the Stick electrode stud, therefore stud connection adapters (such as LECO. S19257-series) cannot be used for torch connection.

	RECOMMENDED EQUIPMENT/INTERFACE
	TIG (water cooled)	TIG (air cooled)
Machine:	PT375 Welding Package (K1903-1)	PT275(K1833-1, -2, K1834-1)
Input Cable/Clamp:	User provided	User provided
Gas Reg./Hose:	(included)	LE/Harris 3100211
Magnum Torch:	(PTW20 included)	PTA9 or PTA17
Magnum Parts:	(KP510 and K918-2 included)	KP507 or KP508
Work Clamp/Lead:	(15 ft. included)	K2150-1 Work Lead Assembly
Foot Amptrol:	(K870 included)	K870 or K870-1

PRECISION TIG 375

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Contents Precision TIG Safety Depends on YouCalifornia Proposition 65 Warnings SafetyElectric Shock can kill Iii Welding Sparks can cause fire or explosionSûreté Pour Soudage a L’Arc Précautions DE SûretéThank You Table of Contents Rated Input Single Phase only InstallationDuty Cycle-Applications Volts at Rated Amperes AmpsPhysical Dimensions Recommended Input Wire and Fuse SizesTemperature Ranges Additional Output CapacitySafety Precautions Input and Grounding Connections Stick Electrode Cable Connection Output CABLES, Connections and LimitationsWork Cable Connection Figure A.2 TIG Torch ConnectionFigure A.3 Auxiliary Power ConnectionsFigure A.4 Robotic Interface ConnectionProduct Description OperationPipe Thawing Welding SparksRecommended Processes Recommended Processes and EquipmentProcess Limitations Equipment LimitationsFigure B.1 Control Panel Controls and SettingsMinimum Output Control and Display Switch Advanced Panel Controls Do not USE 4-STEP if Using AN Amptrol RemotePulse 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 Factory Installed Options AccessoriesField Installed Options Optional EquipmentSafety Precautions MaintenanceRoutine and Periodic Maintenance Overload ProtectionComponent Access Service ProceduresSpark GAP Adjustment UNDER-COOLER ServiceHOW to USE Troubleshooting Guide TroubleshootingOutput Problems SymptomsPossible Areas Course of ActionGAS Problems Meter ProblemsHI-FREQ Problems Preset & Output Control Problems TIG Welding Problems Stick Welding ProblemsTIG Problems Precision TIG 375 Wiring Diagram for Code MID TIG PrecisionDimension Print K1833-1 DOMESTIC, K1833-2 Canada and K1834-1 Export Precision TIG Warnung Aviso DE