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Spot Welding Machine for Millermatic Pulser Quit Welding

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Millermatic Pulser Quit Welding


Tue, 31 Aug 2021 09:15:41 GMT
Millermatic PulserSerial Number #: LC022378Quit welding today.  It runs, feeds wire, but won’t arc.  I did some research and it sounds as if the contactor may be bad.  I cannot hear it slamming shut when I pull the trigger.  Any recommendations as far as troubleshooting?  I don’t want to replace it if it’s not the problem.  Any other things I should check that might cause the problem?Thanks,MattSent from my iPhone using TapatalkMatthew MortonTexas A&M '06Logsdon Seminary '13"Who Dares Wins""AFTF""WH2PH"SA 200 (Code: 5337)TB 302CP 302 w/22A Wire FeederMillerMatic 200Miller Syncrowave 200MillerMatic 252BurnTables 4x4 CNC MachineHypertherm 65
Reply:Check for 24v AC at the contactor coil when the gun trigger is pressed.  If you have 24v AC there, then run about 6" of wire out of the gun and touch the metal or ground clamp and hold it there.  Next take a insulated screwdriver and press in on the spring-activated part of the contactor.  If the wire arcs then your contactor is bad.  Report back what you find.
Reply:Well, I finally got around to checking things out.  I think it was the contractor.  Ordered the part and installed it last week.  Seems to have fixed the problem.  Welds fine now!  Hoping I didn't jinx myself!Thanks!!Matthew MortonTexas A&M '06Logsdon Seminary '13"Who Dares Wins""AFTF""WH2PH"SA 200 (Code: 5337)TB 302CP 302 w/22A Wire FeederMillerMatic 200Miller Syncrowave 200MillerMatic 252BurnTables 4x4 CNC MachineHypertherm 65

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