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New Dynasty 280DX, bad argon gas solenoid?

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  • New Dynasty 280DX, bad argon gas solenoid?

    Hello,

    Name is Dave, and have purchased a new Dynasty 280DX in the past month. I have it setup with the bottle flowmeter piped into the back of the machine with a standard green argon hose, and a 17FV torch on the machine currently.

    I have noticed that after the post flow times out, I can hear the audible decrease in argon flow from the torch, yet the ball with be slightly floating on the flowmeter still. Listening to the torch end, I can hear a small amount of argon escaping. Shutting the valve on the torch kills the flow yet, waiting a few seconds and releasing the valve provides the familiar "wooosh" of argon pressure escaping.

    Is there something I should look into? Is this an identified problem with a certain batch of machines?

    Spending $5k on a new machine to have an issue like this is a little disconcerting.

    Thanks.
    Stainless process piping - welder & fitter

    Miller Dynasty 280DX
    Jet band saw
    Dewalt chop saw
    Assorted IR air tools and Metabos

  • #2
    To narrow it down (mechanical failure vs electrical/solenoid signal), I have opened the argon cylinder with the machine powered off, and the flow meter registers flow and gas can be felt escaping the torch.

    Seems to be a bad solenoid then?

    I am not really happy about having to take time out to take the machine to a local service center with it being brand new.

    Any suggestions?
    Stainless process piping - welder & fitter

    Miller Dynasty 280DX
    Jet band saw
    Dewalt chop saw
    Assorted IR air tools and Metabos

    Comment


    • #3
      Did you by any chance use teflon tape on the fittings when you hooked up the regulator and hose??

      if you did... then likely you have a shred of tape in the solenoid valve...

      tef tape is a no no... those fittings are always assembled bare..
      Last edited by H80N; 02-02-2015, 04:19 PM.
      .

      *******************************************
      The more you know, The better you know, How little you know

      “The bitterness of poor quality remains long after the sweetness of low price is forgotten”

      Buy the best tools you can afford.. Learn to use them to the best of your ability.. and take care of them...

      My Blue Stuff:
      Dynasty 350DX Tigrunner
      Dynasty 200DX
      Millermatic 350P w/25ft Alumapro & 30A
      Millermatic 200

      TONS of Non-Blue Equip, plus CNC Mill, Lathes & a Plasmacam w/ PowerMax-1000

      Comment


      • #4
        Negative on tape. Just the standard inert gas fitting.
        Stainless process piping - welder & fitter

        Miller Dynasty 280DX
        Jet band saw
        Dewalt chop saw
        Assorted IR air tools and Metabos

        Comment


        • #5
          Originally posted by CODE4 View Post
          Negative on tape. Just the standard inert gas fitting.
          Then maybe a piece of lint or crud got into the valve.. and lodged in the works..
          I would blow it out backwards with compressed air while energized in the open position...
          and then test it again..
          would blow out the hose too..
          Last edited by H80N; 02-02-2015, 05:49 PM.
          .

          *******************************************
          The more you know, The better you know, How little you know

          “The bitterness of poor quality remains long after the sweetness of low price is forgotten”

          Buy the best tools you can afford.. Learn to use them to the best of your ability.. and take care of them...

          My Blue Stuff:
          Dynasty 350DX Tigrunner
          Dynasty 200DX
          Millermatic 350P w/25ft Alumapro & 30A
          Millermatic 200

          TONS of Non-Blue Equip, plus CNC Mill, Lathes & a Plasmacam w/ PowerMax-1000

          Comment


          • #6
            Excellent suggestion, thank you! Will report back tomorrow with results.
            Stainless process piping - welder & fitter

            Miller Dynasty 280DX
            Jet band saw
            Dewalt chop saw
            Assorted IR air tools and Metabos

            Comment


            • #7
              Originally posted by CODE4 View Post
              Excellent suggestion, thank you! Will report back tomorrow with results.
              I have several times run in to the same situation...

              hoses and gas equip seem to be crud magnets...
              .

              *******************************************
              The more you know, The better you know, How little you know

              “The bitterness of poor quality remains long after the sweetness of low price is forgotten”

              Buy the best tools you can afford.. Learn to use them to the best of your ability.. and take care of them...

              My Blue Stuff:
              Dynasty 350DX Tigrunner
              Dynasty 200DX
              Millermatic 350P w/25ft Alumapro & 30A
              Millermatic 200

              TONS of Non-Blue Equip, plus CNC Mill, Lathes & a Plasmacam w/ PowerMax-1000

              Comment


              • #8
                Sir, thank you for the suggestion - I feel silly as it is a common sense solution that escaped me.

                Blew the hose out as well as the machine in reverse flow.

                Fixed the issue.
                Stainless process piping - welder & fitter

                Miller Dynasty 280DX
                Jet band saw
                Dewalt chop saw
                Assorted IR air tools and Metabos

                Comment


                • #9
                  Originally posted by CODE4 View Post
                  Sir, thank you for the suggestion - I feel silly as it is a common sense solution that escaped me.

                  Blew the hose out as well as the machine in reverse flow.

                  Fixed the issue.
                  Pretty common problem...

                  glad we could help...

                  BTW... Welcome Aboard..!!!
                  .

                  *******************************************
                  The more you know, The better you know, How little you know

                  “The bitterness of poor quality remains long after the sweetness of low price is forgotten”

                  Buy the best tools you can afford.. Learn to use them to the best of your ability.. and take care of them...

                  My Blue Stuff:
                  Dynasty 350DX Tigrunner
                  Dynasty 200DX
                  Millermatic 350P w/25ft Alumapro & 30A
                  Millermatic 200

                  TONS of Non-Blue Equip, plus CNC Mill, Lathes & a Plasmacam w/ PowerMax-1000

                  Comment


                  • #10
                    "reverse flow"??? HuH?

                    Wait a minute, 'reverse flow'?
                    Is that when you hookup the tank hose to the front unit fitting and the torch hose to the rear of machine fitting?
                    Will Robinson, this does not compute!

                    Comment


                    • #11
                      Originally posted by maxstar300LX View Post
                      Wait a minute, 'reverse flow'?
                      Is that when you hookup the tank hose to the front unit fitting and the torch hose to the rear of machine fitting?
                      Will Robinson, this does not compute!
                      Compressed air with a blowgun...


                      Originally posted by H80N View Post
                      Then maybe a piece of lint or crud got into the valve.. and lodged in the works..
                      I would blow it out backwards with compressed air while energized in the open position...
                      and then test it again..
                      would blow out the hose too..
                      Last edited by H80N; 02-03-2015, 05:22 PM.
                      .

                      *******************************************
                      The more you know, The better you know, How little you know

                      “The bitterness of poor quality remains long after the sweetness of low price is forgotten”

                      Buy the best tools you can afford.. Learn to use them to the best of your ability.. and take care of them...

                      My Blue Stuff:
                      Dynasty 350DX Tigrunner
                      Dynasty 200DX
                      Millermatic 350P w/25ft Alumapro & 30A
                      Millermatic 200

                      TONS of Non-Blue Equip, plus CNC Mill, Lathes & a Plasmacam w/ PowerMax-1000

                      Comment


                      • #12
                        I sent compressed air from the front of the machine to the back while depressing the Pre/post flow button, manually opening the valve.
                        Stainless process piping - welder & fitter

                        Miller Dynasty 280DX
                        Jet band saw
                        Dewalt chop saw
                        Assorted IR air tools and Metabos

                        Comment


                        • #13
                          New Dynasty 280DX, bad argon gas solenoid?

                          Don't feel bad. I ran my 350-p for 2-years and was in middle of a cyl when lost 75% of gas flow. Was almost 1/2 day till found small piece crud where hose goes into rear of Michine.
                          In hind sight sounds simple but sure took me awhile to find it.

                          Comment


                          • #14
                            Compressed air blowgun…

                            Yeah i got that part when you suggested it.
                            but it was this that threw me…

                            ""Sir, thank you for the suggestion - I feel silly as it is a common sense solution that escaped me. ""

                            Thought the inlet /outlet lettering was missing…

                            Oh well,
                            been a LONG day!

                            also don't forget about the mud wasps nests, spider egg sacks, brass thead shavings from cross- threaded fittings on the tanks…
                            yeah CRUD is a good description.

                            Comment


                            • #15
                              get that problem every so often it's always a tiny piece of dust in the gas solenoid. i take out the solenoid and clean it out with electonic cleaner or brake cleaner and that takes care of it

                              Comment

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