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connect the + lead to the spool gun so that there is power at the end of the wire to make the arc
there should have been a user manual showing how to connect it into the system
try searching -- user manual for ( make and model of ) spool gun
May need to take gun apart and see if trigger is sticking or replace lead.
we use Miller at work. The feeder has a switch that makes the trigger turn off and on with quick pull of trigger so you don't have to hold it entire time.
check wiring to make sure it's wired right so your not bypassing the trigger switch.
Most of these machines (would have to have serial number to be sure) will not feed if their is no output voltage, since part of the motor voltage comes from the arc voltage.
So, I would suspect broken wires, either in the work lead or the gun. If it arcs just a little, probably the gun. One place the work lead breaks is right at the back of the clamp. Pull on the insulation and see if it "stretches". If so, the wire there is broken.
If everything works but there is no arc; you should check your ground clamp, make sure it is not loose or dirty including terminals and replace your gun's contact tip.
Believe it or not this is a simple one.
Your windings inside are aluminum, they may have loosened up where the positive lead hooks on to the transformer inside.
I had a miller and the wire melted there, you can re-loop the wire and re-fasten it if it melted short enough if this is infact the the problem when you take the cover off..
It's the high frequency, ground the case of machine, work lead connection and work table, do not chain grounds together, this will cause a ground loop.
Hi there, If the knob spins all the way around (and especially of it didn't always do that), it's broken. This could mean that the nut that holds the rheostat in place has come loose, or it could be that the wiper inside the rheostat has broken off the shaft. To find the voltage measurements, correct schematics, etc, I'd need to know the serial number of your welder.
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