Lincoln Electric V155-S Theory of Operation, General Description, Safety Instructions

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B-2		THEORY OF OPERATION			B-2
operating your machine.			GENERAL DESCRIPTION
Read and understand this entire section before			welding power source which utilizes single phase input
SAFETY INSTRUCTIONS
			The INVERTEC® V155-S is an industrial 155 amp arc
			power, to produce constant current output. The welding
		WARNING	(SMAW) and Touch Start TIG (GTAW). The unit is ideal
			response of this Invertec has been optimized for stick
			for industrial applications where portability is important.
	ELECTRIC SHOCK can kill.
			The INVERTEC® V155-S is recommended for stick
	• Do not touch electrically live parts such		welding with such popular electrodes as Fleetweld 35,
			Fleetweld 37, Fleetweld 180 and LH 78. It features
	as output terminals or internal wiring.		automatic arc control to adjust the arc force, hot start
	• Insulate yourself from the work and		and anti sticking. The machine also features soft and
	ground.		crisp modes.
	• Always wear dry insulating gloves.		The INVERTEC® V155-S performs DC Touch Start Tig
			Starting with excellent results.
____________________________________
	FUMES AND GASES		WELDING CAPABILITY
	can be dangerous.		The INVERTEC® V155-S is rated at 155 amps, 16.2
	•	Keep your head out of fumes.	volts, at 30% duty cycle on a ten minute basis. It is
			capable of higher duty cycles at lower output cur-
			rents . If the duty cycle is exceeded, a thermal protec-
	•	Use ventilation or exhaust to	(1)
			tor will shut off the output until the machine cools. See
		remove fumes from breathing	Technical Specifications in the Installation Section for
		zone.	other rated outputs.
____________________________________			The INVERTEC® V155-S is recommended for stick
	WELDING, CUTTING and		welding with such popular electrodes as Fleetweld	®	35,
	GOUGING SPARKS		Fleetweld 37, Fleetweld 180 and Jet-LH 78 MR. It fea-
	can cause fire or explosion		tures adjustable arc control to adjust the arc force and
	• Keep flammable material away.		start.
			LIMITATIONS
	•	Do not weld, cut or gouge on	The INVERTEC® V155-S is not recommended for
		containers that have held com-
	bustibles.		pipe thawing.
____________________________________			(1) Refer to Technical Specifications in the Installation Section for other ratings.
	ARC RAYS
	can burn.

• Wear eye, ear and body

protection.

____________________________________

Only qualified personnel should operate this equip- ment. Observe all safety information throughout this manual.

INVERTEC® V155-S