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A-8
INSTALLATION
IDEALARC SP-250
A-8
GUN & CABLE INSTALLATION
WARNING: TURN THE WELDER POWER SWITCH
OFF BEFORE INSTALLING GUN AND CABLE.
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1. Lay the cable out straight.
2. Make sure all pins on the gun cable connector are
aligned with the proper mating sockets on the front
panel gun connector and then join the connectors
and tighten the hand nut on the gun cable connec-
tor.
NOTE: If a gun and cable other than the Magnum 250
SP is to be used, it must conform to standard
European style connector (Magnum Fast Mate) speci-
fications. See Figure A.9.
NOTE: The thumb switch functions available on the
Magnum 250 SP gun will only be operable from the
front panel keypad. The gun trigger switch must be
capable of switching 5 milliamps at 15 volts DC resis-
tive.
FIGURE A.9 - European Style Connector
The gun trigger switch connected to the gun trig-
ger control cable must be a normally open momen-
tary switch. The terminals of the switch must be
insulated from the welding circuit. Improper opera-
tion of or damage to the SP-250 might result if this
switch is common to an electrical circuit other than
the SP-250 trigger circuit.
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WARNING
CAUTION