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A-8

INSTALLATION

A-8

 

 

WIRE SIZE CONVERSION PARTS

The Wire-Matic 250 is rated to feed .025" through .045" (0.6-1.2mm) solid or cored electrode sizes. For vari- ous drive roll kits refer to Acessories Section.

GUN AND CABLE INSTALLATION

WARNING

Turn the welder Power Switch OFF before chang- ing output connection.

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1.Lay the cable out straight.

2.Locate the wing screw on conductor block inside wire feed compartment. Unscrew it until the tip of the screw no longer protrudes into gun opening as seen from front of machine.

3.Insert the brass connector on the end of the gun cable into conductor block through opening in the front panel. Make sure the connector is fully insert- ed and tighten wing screw.

4.Connect the gun trigger connector from the gun and cable to the mating receptacle on the front panel. Make sure that the keyways are aligned, insert and tighten retaining ring.

NOTE: If a gun and cable other than the Magnum 250L is used, it must conform to connector specifica- tions and the gun trigger switch must be capable of switching 5 milliamps at 15 volts DC -resistive.

CAUTION

The gun trigger switch connected to the gun trig- ger control cable must be a normally open, momentary switch. The terminals of the switch must be insulated from the Welding circuit. Improper operation of or damage to the WIRE- MATIC 250 might result if this switch is common to an electrical circuit other than the WIRE-MATIC 250 trigger circuit.

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WIRE-MATIC 250

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Lincoln Electric SVM 117-A service manual Wire Size Conversion Parts, GUN and Cable Installation