Anyone good with Dfenders?

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  • n2extreme1
    Newbie
    • Jul 2020
    • 9

    #1

    Anyone good with Dfenders?

    Im kind of over it. It was shooting fine then all of a sudden paint just shoots about 2 ft. Pressure is at 200 psi. Even adjusted the velocity in the rear. Its almost as if its not getting any air. I sent it to Kore and they sent it back saying its all set. They changed out an eye harness and some orings. Its having the same exact issue.
  • Chuck E Ducky
    Ragnastock Enforcer
    • Jul 2020
    • 6269
    • NY

    #2
    Poppet o-ring / seal issues or dry poppet. For low velocity, lubricate the poppet o-ring / replace it. A dry, swollen, cut, or missing poppet seal lets air dump inefficiently so the ball only gets a weak push.

    Bolt guide o-rings (especially the small ones)
    Manual calls out replacing the three small bolt-guide o-rings when velocity is low or drops off. These seal the air path around the bolt.

    Check valve missing, stuck, or blocked
    Located under the air transfer plate. A missing check valve causes inefficient gas use / low power. Debris or a failed one can restrict flow so it feels like “no air.”

    Regulator not delivering volume even if gauge reads 200 psi

    Tank not fully seated in the ASA.

    Restricted flow from tank regulator, dirty/creeping marker regulator, or bad piston/seat.
    Watch the gauge while rapid-firing. If it drops and is slow to recover, the regulator or tank is the bottleneck.

    Other air-path restrictions. Debris in the air transfer tubes, manifold, or ASA; kinked/internal blockage or the velocity adjuster (rear/side) not actually moving the right components.

    Dead/weak batteries solenoid needs good voltage to open or your Solenoid could partially be sticking rare for pure low velocity, more likely if it’s dumping air.

    Comment

    • Jordan
      I. Am. Canadian. 🇨🇦
      • Jul 2020
      • 3508
      • Southern Ontario, Canada

      #3
      These are Axe/Mini based? Very likely the poppet oring being dry or old grease causing "stiction" and slowing it dow.

      Used to happen to me with my Mini all the time, unless I greased it the morning before I played.

      Comment


      • Chuck E Ducky
        Chuck E Ducky commented
        Editing a comment
        Same guts different shell with hopper internalized. The Defender have lots of issues with the ROF selector switch as well.

      • Trbo323
        Trbo323 commented
        Editing a comment
        Yes same core. And yes the selector switch and trigger work off a hall effects system so they can be finiky
    • n2extreme1
      Newbie
      • Jul 2020
      • 9

      #4
      Ill check these out. Just find it crazy that they would send it back in the same condition I sent it to them saying everything was fixed.

      Comment

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