Lincoln Electric V155-S service manual Output Connections, TIG Welding, Stick Welding Smaw

A-5	INSTALLATION	A-5
ARFU (Auto-Restore Fuse)		FIGURE A.1

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The dual input voltage machine is provided with the ARFU device. It operates only when the input is con- nected to the 120Vac mains and protects from input overcurrent. When active, the "Thermal LED" lights (see "Controls and Operational Features" in the Operation Section).

Note: The ARFU device operates independently from the machine's duty-cycle.

OUTPUT CONNECTIONS

A quick disconnect system using Twist-Mate™ cable plugs is used for the welding cable connections. Refer to the following sections for more information on con- necting the machine for operation of stick welding (SMAW) or TIG welding.

WARNING

ELECTRIC SHOCK can kill.

•Keep the electrode holder and cable insulation in good condition.

•Do not touch electrically live parts or electrode with skin or wet cloth- ing.

•Insulate yourself from work and ground.

•Turn the input line Switch on the INVERTEC® V155-S “off” before connecting or disconnecting output cables or other equipment.

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Electrode

Holder

Work Clamp

Work Cable

TIG WELDING

This machine does not have a built in Gas Solenoid so a one piece gas valve TIG Torch is required. A K960-2 Twist-Mate™ TIG Torch adapter is also required. Refer to the accessories section for more information about TIG Torches and required Twist-Mate™ adapter. Most TIG welding is done with DC(-) polarity shown here. If DC(+) polarity is necessary switch the cable connec- tions at the machine. (See Figure A.2)

Connect the torch cable to the (-) terminal of the machine and the work clamp to the (+) terminal. Insert the connector with the key lining up with the keyway and rotate approximately 1/4 turn clockwise. Do not over tighten. Finally, connect the Twist-Mate™ adapter gas hose to the gas regulator on the cylinder of gas to be used.

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STICK WELDING (SMAW)

First determine the proper electrode polarity for the elec- trode to be used. Consult the electrode data for this infor- mation. Then connect the output cables to the output ter- minals of the machine for the selected polarity. Shown here is the connection method for DC(+) welding. (See Figure A.1)

Connect the electrode cable to the (+) terminal and the work clamp to the (-) terminal. Insert the connector with the key lining up with the keyway and rotate approximate- ly 1/4 turn clockwise. Do not over tighten.

For DC(-) welding, switch the cable connections at the machine so that the electrode cable is connected to (-) and the work clamp is connected to (+).

FIGURE A.2

Work Clamp

Work Cable

Twist-Mate™ Adapter K-960-2

Gas Hose	Gas Valve
To Bottle	TIG Torch

INVERTEC® V155-S