Lincoln Electric SVM103-A service manual Welding Operation, To USE the POWER-ARC 4000 for Welding

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B-9

	OPERATION
WELDING OPERATION	3. Attach the work clamp securely to the work you
	are welding.

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GENERAL INFORMATION

WARNING

Do not touch electrically live parts or elec- trodes with your skin or wet clothing.

Do not breathe welding fumes or gases.

Use ventilation or exhaust to remove weld- ing fumes from the breathing area.

Keep flammable material away.

Wear eye, ear, and body protection.

The POWER-ARC 4000 generator/welder can deliver from 70 to 125 amps of continuous welding output current . Output can be adjusted by setting the cur- rent control dial on the output control panel.

You can get maximum welding output by setting the dial to 125 AMPS. At high current settings like this, some output may decrease as the machine is used. If you are welding for a long time, you may need to turn the dial slightly upward to maintain the same results.

The numbers on the dial correspond to the average amps needed to weld using specific Lincoln welding rods. Table B.4, WELDING APPLICATIONS, gives you the recommended dial settings based on the thick- ness of the work and the size and type of rod you’re using.

TO USE THE POWER-ARC 4000 FOR WELDING:

1.Remove the flange nuts from the weld output ter- minals and place the work and electrode welding cables over the terminals. See Figure B.1. Replace and tighten the flange nuts securely. Be sure the connections are tight.

2.Select the appropriate electrode. See Table B.4, WELDING APPLICATIONS, or the ELECTRODE SELECTION GUIDE on the machine Output Control Panel.

4.Insert the electrode into the electrode holder.

5.Set the current control dial to the desired output current.

6.Start the gasoline engine. See ENGINE OPERA- TION in this section of the manual.

7.Strike an arc and begin welding. For information on welding techniques, see WELDING GUIDE- LINES in this section of the manual.

AFTER YOU FINISH THE WELD:

1.Stop the gasoline engine. See ENGINE OPERA- TION in this section of the manual.

2.Allow the electrode and work to cool completely.

3.Remove the work clamp from the work.

4.Remove any remaining piece of electrode from the electrode holder.

5.If you are finished using the POWER-ARC 4000 for welding, disconnect the welding cables from the weld output terminals. Reattach the flange nuts and leave them on the terminals.

POWER-ARC 4000