Lincoln Electric SVM100-A service manual Table A.1, Stick Electrode Cable Connection

A-5 INSTALLATION

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TABLE A.1

Cable Sizes for Combined Lengths of Copper

Electrode and Work Cable

	Lengths up to
Machine Size	100 ft	100 to 200 ft	200 to 250 ft
255 Amp	#2 (35mm2)	#1 (45mm2)	1/0 (55mm2)
40% Duty Cycle

Connect the TIG torch gas and water fittings to the welder fittings. Any torch with fittings that conform to Compressed Gas Association (CGA) standards can be used.

The welder fittings have the following threads: Gas

Inlet and Outlet: 5/8”-18 right-hand female; Water inlet

and Outlet: 5/8”-18 left-hand female. The cylinder of inert shielding gas must be equipped with a pressure regulator and flow meter. Install a hose between the flow meter and gas inlet on the welder.

STICK ELECTRODE CABLE CONNECTION

Turn the Power switch Off. Run the electrode and work cables through the strain relief holes below the welding output terminals, and connect the cables to the proper terminals. This strain relief prevents dam- age to the welding output terminals if the cables are pulled excessively. Select cable size according to Table A.1.

WARNING

Do not connect a TIG torch and stick electrode cable at the same time. They will both be electrically HOT whenever the output contactor is energized.

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WARNING

Observe the safety precautions necessary for han- dling and using compressed gas containers. Contact

your supplier for specific information.

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DO NOT operate a water-cooled torch unless water is flowing. Water doesn’t flow until solenoid is actuated.

If using a water-cooled torch with a Magnum water cooler, connect the cooler water outlet to the ‘Water Valve In” fitting. Connect the TIG torch inlet to the “Water Valve Out” fitting.

If using a water-cooled torch with a free-running water supply, install a water line between the welder “Water Inlet” and the supply. Include a strainer in the water supply line to prevent dirt particles from obstructing water flow in the valve and cooling chamber of the TIG torch. Failure to do so could result in water valve malfunction and overheating of the water-cooled torch. Connect the torch water line to the welder “Water Out” fitting. Use a nonmetallic drain line from the electrode connection to the drain or water recircu- lating pump.

For other water coolers or torches, consult the manu- facturer’s instructions for the water cooler or TIG torch being used.

SQUARE WAVE TIG 255