Lincoln Electric IM738-A, V160-T manual Output and GAS Connection for TIG Welding Figure A.1

A-5 INSTALLATION A-5

The following Lincoln engine drives meet these condi- tions when run in the high idle mode:

•Ranger 250,305

•Commander 300, 400, & 500

Many engine drives do not meet these conditions (eg Miller Bobcats, etc). Operation of the Invertec V160-T is not recommended on engine drives not conforming to these conditions. Such combinations may overvolt- age the Invertec V160-T power source.

OUTPUT CONNECTIONS

WARNING

ELECTRIC SHOCK can kill.

•Keep the electrode holder, TIG torch and cables insulation in good condition and in place.

•Do not touch electrically live parts or electrode with skin or wet clothing.

•Insulate yourself from work and ground.

•Turn the input line Switch on the Invertec V160- T “off” before connecting or disconnecting out- put cables or other equipment.

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OUTPUT AND GAS CONNECTION FOR TIG WELDING (FIGURE A.1)

FIGURE A.1

TIG TORCH

WORK CABLE

WORK CLAMP

This unit does not include a TIG torch, but one may be purchased separately. The Lincoln PTA-9 (K1781-1 or K1781-3 only with no gas valve) or PTA-17 (K1782-1 or K1782-3) are recommended for use with this machine for this purpose; however, any similar TIG torch can be used. To attach the Twist-Mate Plug to a Lincoln Torch, slide the rubber boot onto the torch cable (enlarge the boot opening if necessary), screw the fitting on the torch cable into the brass connector snugly and slide the boot back over the brass connec- tor. (See Figure A.1a)

	FIGURE A.1a
TIG ADAPTER	STRAIN RELIEF BOOT

RETAINING COMPOUND TIG TORCH POWER CABLE WITH GAS FITTING

The ground lead and TIG Torch Twist Mate® Connector are supplied with the welder. To connect the cables, turn the Power Switch “OFF”. Connect the torch Twist Mate plug into the DC(-) Electrode/Gas Output Receptacle on the front of the welder and turn it clockwise until tight.

WORK CAbLE CONNECTION

Next, connect the work cable to the “+” output terminal in the same way.

To minimize high frequency interference, refer to

Machine Grounding and High Frequency Interference Protection section of this manual for the proper procedure on grounding the work clamp and work piece.

OUTPUT CONNECTION FOR STICK WELDING (FIGURE A.2)

FIGURE A.2

WORK CLAMP

WORK CABLE

ELECTRODE

HOLDER

First determine the proper electrode polarity for the electrode to be used. Consult the electrode data for this information. Then connect the output cables to the output terminals corresponding to this polarity. For instance, for DC(+) welding, connect the electrode cable (which is connected to the electrode holder) to the “+” output terminal and the work cable (which is connected to the work clamp) to the “-” output termi- nal. Insert the connector with the key lining up with the keyway, and rotate approximately 1/4 turn clock- wise; until the connection is snug. Do not over tighten.

V160-T