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INSTALLATION | ||
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WIRE SIZE CONVERSION PARTS
The
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 knurled thumb 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 thumb 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
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 255 might result if this switch is common to an electrical circuit other than the
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