Lincoln Electric 205-TAC/DCTIG manual Problems TIG Welding, Your local Lincoln Authorized

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	E-3		TROUBLESHOOTING		E-3

		Observe all Safety Guidelines detailed throughout this manual

		PROBLEMS		POSSIBLE	RECOMMENDED
		(SYMPTOMS)		CAUSE	COURSE OF ACTION
		PROBLEMS IN	TIG WELDING
	Oxidation		1. lnsufficient gas.
			2.	No protection on the back side.

	Tungsten inclusions		1. lncorrect electrode sharpening.
			2.	Electrode too small.
			3.	Operating failure (contact of the
				tip with the workpiece).

	Porosity		1. Dirt on the edges.
			2.	Dirt on the filler material.
			3.	Excessive travel speed.	If all recommended possible areas of
			4.	Current intensity too low.	If all recommended possible areas of
			4.	Current intensity too low.	misadjustment have been checked
			5.	Insuffient gas flow rate	misadjustment have been checked
			5.	Insuffient gas flow rate	and the problem persists, Contact
					and the problem persists, Contact
	Hot cracking		1 Unsuitable filler material.		your local Lincoln Authorized
	Hot cracking		1 Unsuitable filler material.		Field Service Facility.
			2.	High heat supply.	Field Service Facility.
			2.	High heat supply.
			3.	Dirty materials.

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your

V205-T DC & V205-T AC/DC TIG

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Contents Invertec V205-T DC & V205-T AC/DC TIG April Safety California Proposition 65 WarningsElectric Shock can kill Welding and Cutting Sparks can Cause fire or explosion IiiPrécautions DE Sûreté Sûreté Pour Soudage a LʼArcV205-T DC & V205-T AC/DC TIG Safety Thank You Table of Contents Storage Temperature Range InstallationOperating Temperature Range Select Suitable Location StackingTilting Environmental AreaReconnect Procedure Input ConnectionsTable A.1 Nominal RangeAttachment Plug Installation 230V Input115V Input Engine Driven GeneratorWork Cable Connection Output and GAS Connection for TIG Welding Figure A.1Output Connection for Stick Welding Figure A.2 Remote Control Connection Shielding GAS ConnectionSafety Instructions OperationGeneral Description Welding CapabilityRear Control Panel Figure B.1 Figure B.1Controls and Settings Figure B.2Step Diagram TIG DC SET UP Menu Indicator Parameter DefaultOutput Limitations Welding PolarityPulsed TIG Alternating Current AC/DC model onlySteel TIG Welding Copper TIG WeldingTips for AC TIG Welding Filler MaterialTips for Improved TIG Starting Protective GASAC TIG Welding Quick Start UP AC TIGDC TIG Welding Quick Start UP Accessories Optional AccessoriesCompatible Equipment Cable PlugsMaintenance Safety PrecautionsInput Filter Capacitor Discharge Procedure Routine MaintenanceTroubleshooting HOW to USE Troubleshooting GuideTroubleshooting Your local Lincoln Authorized Problems TIG WeldingField Service Facility Failures DisplayWiring Diagrams V205-T DC Wiring Diagram forV205-T AC/DC Wiring Diagram for V205-T DC & V205-T AC/DC TIG V205-T DC & V205-T AC/DC TIG Precaucion Warnung