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  • spectrum 375 issue

    hello everyone I am new to this site, I recently purchased a spectrum 375 not the Xtreme, I bought it on Craigslist and I am using it on 110V standard house current, the issue I am having is that I will start cutting a piece of metal and the torch just cuts off after about 10 seconds, I will wait about 5 seconds and it will turn on again, I dont think this is normal so can anyone please assist me??? none of the error indicator LED's turn on. did I buy a lemon?

  • #2
    Sucker draws up to 28 amps on Household 120 Vac. so its quite likely not getting it on your household power. for some reason unless you have an automatic reset, your breaker isn't tripping fully.

    It's just a guess though.

    Comment


    • #3
      Do you have enough air pressure? Are you keeping the tip to work distance within range. If you move the tip to far away from the work it will stop cutting.
      MM250
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      • #4
        issue persists

        yes I have sufficient air pressure, the error light never turns on, and yes it is very close to the work piece, I have considered wiring it up to the dryer 220V hook up, can anyone tell me how to do it?

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        • #5
          Might check your ground. Mine does the same thing if the ground is bad.

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          • #6
            Find the line voltage select switch. Should in side a hole by the label.
            Change the plug or make a plug changing pig tale.
            The problem you describe sounds like a week line. Always use a #12 or #10 extension cords when on 115 volts.
            Try turning the cut current down to 20 amps and see if it stays cutting longer.
            On 115 volts you are using about 1.2 amps for every 1 amp of cut current
            Also make sure your air pressure is set right in air test (air flowing).
            Turn your cap on until it stops then BACK UP 1/4 to 1/2 turn.
            To tight cap, to high air pressure will also cause short arc time.
            Glenn 300 amp stick
            Millermatic 35
            L-tec plasma

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            • #7
              wiring the cutter

              I bought the #10ga extension cord, I now just need to know how to make the pig tail, is there a schematic/drawing of how to wire it? does anyone know how to do it for an house hold electric dryer plug? please assist...

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              • #8
                I don't think this is an input power problem. If the input line was sagging, I believe the power light on the system would blink.
                Did checking your work clamp connection fix the problem? Establish a pilot arc away from your workpiece and time how long the pilot arc stays lit. If this is the same length of time as when you are noticing your arc outages, then the issue is that there is a bad ground connection.

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                • #9
                  wiring the plug

                  can anyone describe give a drawing on how to wire it for a dryer outlet???

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                  • #10
                    Originally posted by kiles2001 View Post
                    can anyone describe give a drawing on how to wire it for a dryer outlet???
                    kiles; For 220v power, the Black & White are hot, the Green wire is the ground.

                    For 110v. power , the White is Nuteral & the Black is Hot & green is ground .
                    PS. For 220v. power is does Not matter which Hot wire goes the which side .

                    ........ Norm
                    www.normsmobilewelding.blogspot.com

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                    • #11
                      Originally posted by Cash View Post
                      Might check your ground. Mine does the same thing if the ground is bad.
                      I second that.
                      My 375 does that when I have a bad ground. Make sure you are hooked up to bare clean metal with the cable side of the clamp.

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                      • #12
                        wiring

                        ok I get the 110v but the black and white are hot with 220v so the green is??? the ground? there are three prongs for the drier two flat ones at a 45degree angle and one at the bottom in an L shape, please help me...

                        Comment


                        • #13
                          Green screw

                          In your plug there will be a green screw for the ground wire, probably the L shaped terminal, the two flat blades will be the two hots.
                          Good Luck,
                          Bob
                          Millermatic 252 w/30A
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                          SA-200 Black Face '59
                          SA-200 Green Lite '84
                          SA-200 Green Lite '80
                          SA-200 Red Face '69
                          SA-200 Red Face '66
                          SA-200 Green Lite '81
                          '70 Black Face Round Barrel

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                          • #14
                            Bob,

                            I haven't opened one up in a while but the Screw may not be Green but you are correct in that is where the Green wire terminates in this application

                            The Connector is Labeled X Y W

                            For this application and the color coding on the machines power cord wires:
                            X= Black wire
                            Y= White wire
                            W= Green Ground (labeled W since it is technically the Grounded Conductor)

                            This is for a Pig Tail cord

                            Ed Conley
                            http://www.screamingbroccoli.net/
                            MM252
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                            • #15
                              Nema

                              Ed, I just looked it up, says 3 wire nongrounding, so I was at a loss. Thanks for the info and the picture. Make it easy to see that way.
                              BTW, if it is nongrounding then there might not be a green screw.
                              I just did a bunch of 3 phase plugs and they all had a green screw for ground.
                              Thanks Ed
                              Good Luck,
                              Bob
                              Millermatic 252 w/30A
                              Big Blue Air Pak
                              Ellis 3000 Band Saw
                              Trailblazer 302 Air Pak w/ Wireless Remote
                              8-RC
                              Dynasty 200 DX
                              XMT 350 MPa w/S-74 MPa Plus
                              Millermatic 211
                              Passport Plus
                              Spectrum 625 X-TREME
                              Lincoln SA-200 Blue Tint Red Face '63
                              2-Lincoln SA-200 Red Face '68
                              SA-200 Black Face '59
                              SA-200 Green Lite '84
                              SA-200 Green Lite '80
                              SA-200 Red Face '69
                              SA-200 Red Face '66
                              SA-200 Green Lite '81
                              '70 Black Face Round Barrel

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