Lincoln Electric IM936 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-Frequency 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 (air cooled)
Machine:	PT375
Input Cable/Clamp:	User provided
Gas Reg./Hose:	LE/Harris 3100211
Magnum Torch:	PTA9 or PTA17
Magnum Parts:	KP507 or KP508
Work Clamp/Lead:	K2150-1 Work Lead Assembly
Foot Amptrol:	K870

PRECISION TIG 375

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Contents Precision TIG California Proposition 65 Warnings SafetyElectric Shock can kill Welding and Cutting Sparks can Cause fire or explosion Sûreté Pour Soudage a L’Arc Précautions DE SûretéThank You Table of Contents Rated Input Single Phase only InstallationRated Output IEC Additional Output CapacityTemperature Ranges Recommended Input Wire and Fuse SizesOperating Temperature Range Storage Temperature RangeSafety 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 SettingsOperation Select Advanced Panel Controls Do not USE 4-STEP if Using AN Amptrol RemoteOperation Stick Welding Features Internal SET UP ControlsTIG Welding Features Figure B.3 Figure B.4 Setup Guidelines for TIG Welding With AN Amptrol TIG Weld Cycle ChartFigure B.6 Recommended Electrode Amperage Ranges Precision TIG Making a TIG Weld with AN AmptrolFactory 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 ActionMeter Problems GAS ProblemsHI-FREQ Problems Preset & Output Control Problems TIG Welding Problems Stick Welding ProblemsTIG Problems Precisiontig 375 Wiring Diagram Wiring DiagramDimension Print Precision TIG Warnung Aviso DE