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  • Help with Spectrum 375

    While using my spectrum 375 the arc goes out and will not immediately restart. This is a new machine and has maybe 30 min of arc time. It has always done this. Is this normal? I think the arc going out may be too slow a travel speed. I am cutting around a complex shaped template. The manual says the arc should immediately re-start anytime during the post flow stage. If I release the trigger and pull it again it will start about 25% of the time. Sort of random. Not too helpful. I have replaced the tip and electrode with no change. It always starts first time the trigger is pulled after the post flow. I have used a older miller plasma cutter a while back and donít remember this problem, but I was making long cuts and did not lose the arc very often. Any help is appreciated.

    Paul

  • #2
    my guess is that there may be a problem with the switch or something down stream from it. Might need to take it in... The tip is seated properly right?
    Will it weld? I loooove electricity!

    Miller 251/30A spool
    Syncro200
    Spectrum 625
    O/A
    Precix 5x10 CNC Router12"Z
    Standard modern lathe
    Cheap Chinese mill that does the trick... sort of...
    horizontal 7x12 bandsaw
    Roland XC540 PRO III
    54" laminator
    hammer and screwdriver (most used)
    little dog
    pooper scooper (2nd most used...)

    Comment


    • #3
      Something to try???

      Originally posted by pthunberg View Post
      While using my spectrum 375 the arc goes out and will not immediately restart. This is a new machine and has maybe 30 min of arc time. It has always done this. Is this normal? I think the arc going out may be too slow a travel speed. I am cutting around a complex shaped template. The manual says the arc should immediately re-start anytime during the post flow stage. If I release the trigger and pull it again it will start about 25% of the time. Sort of random. Not too helpful. I have replaced the tip and electrode with no change. It always starts first time the trigger is pulled after the post flow. I have used a older miller plasma cutter a while back and donít remember this problem, but I was making long cuts and did not lose the arc very often. Any help is appreciated.

      Paul
      Make sure your only tighting the tip finger snug. not tight at all. also check the pressure setting on the machine for the thickness of the steel your cutting? it could be to high and blowing out the arc. Just some problems I've had.
      I BLEED MILLER BLUE!
      DoubleEdgeWelding@kc.rr.com
      GROUNDED IN FAITH!
      I have what my Big Bro JESUS has Blessed me with:
      Miller 251,Miller Syncro 180,Miller 625 Plasma Cutter
      Want to Buy a Miller PC-300
      ,
      Dayton 7"x12" Horiziontal Band Saw, Dewalt 14" Abrasive,& Cold Chop Saws,4' Box/Pan Brake,Also A Complete Wood Shop. Now alls I need is a bigger shop!

      Comment


      • #4
        Thanks for the help. I went looking for the problem Thursday night. Started with the input power. The cutter worked flawlessly on 120V power but had the same problem as always on 220v. Now not being an electrician and having hooked up the 220v outlet myself, I figured I must have screwed it up somehow. I took it apart and found nothing wrong. I decided to test the voltage, just to prove it was hooked up right. Instead of 220-230V my multi meter was showing 325V. No way that could be right, right? Next day I brought a meter home from work, same reading, and this time on the main panel. Called the city power people they re- tapped the transformer. Plasma cutter works like a champ now. I guess Miller really means 15% +- 230v. Maybe the light bulbs in the house will last longer now. I wonder if my bill will be less?.

        Paul

        Comment


        • #5
          that is wild. 300+volts between two legs.. The electric company was over there is a flash im sure.. Any Idea how long youve been getting 165v to ground? were you really burning out bulbs?
          Will it weld? I loooove electricity!

          Miller 251/30A spool
          Syncro200
          Spectrum 625
          O/A
          Precix 5x10 CNC Router12"Z
          Standard modern lathe
          Cheap Chinese mill that does the trick... sort of...
          horizontal 7x12 bandsaw
          Roland XC540 PRO III
          54" laminator
          hammer and screwdriver (most used)
          little dog
          pooper scooper (2nd most used...)

          Comment


          • #6
            Thats insane Man I have checked mine ona regular bases because we have spikes all the time.


            Hi sign.
            I BLEED MILLER BLUE!
            DoubleEdgeWelding@kc.rr.com
            GROUNDED IN FAITH!
            I have what my Big Bro JESUS has Blessed me with:
            Miller 251,Miller Syncro 180,Miller 625 Plasma Cutter
            Want to Buy a Miller PC-300
            ,
            Dayton 7"x12" Horiziontal Band Saw, Dewalt 14" Abrasive,& Cold Chop Saws,4' Box/Pan Brake,Also A Complete Wood Shop. Now alls I need is a bigger shop!

            Comment


            • #7
              Not sure how long it was that high. My computer has a regulating power supply and nothing else was sensitive enough to matter. We moved into this house about 2 years ago, must have always been high. It still measures 240v across both legs but the cutter works fine now. My other 220V welder is an old red tombstone stick machine. I suspect it would be happy with just about any input voltage.

              Paul

              Comment


              • #8
                My favorite type of electrical problems to fix is broken neutrals... what a night mare..
                Will it weld? I loooove electricity!

                Miller 251/30A spool
                Syncro200
                Spectrum 625
                O/A
                Precix 5x10 CNC Router12"Z
                Standard modern lathe
                Cheap Chinese mill that does the trick... sort of...
                horizontal 7x12 bandsaw
                Roland XC540 PRO III
                54" laminator
                hammer and screwdriver (most used)
                little dog
                pooper scooper (2nd most used...)

                Comment

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