Broken drumshaft BH-BW-200, 250, 350 series

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  • Hansoon
    Field Supervisor

    Site Contributor
    2,500+ Posts
    • Sep 2007
    • 3350

    #1

    Broken drumshaft BH-BW-200, 250, 350 series

    Broken drumshaft BH-BW-200, 250, 350 series.

    Collegues where asking for a solution in case the plastic drumshaft
    of the BH-BW-200, 250, 350 series breaks. We use an axle screw M5x16mm. See picture:



    Cut off the remaining parts of the plastic shaft. Widen the hole with a 4.5mm drill and just screw the axle screw in place. If necessary can the axle screw be secured with a drop of miracle glue applied in the hole from the other side of the plastic. Put a very light film of grease on the axle screw metal where the drum rides on.

    Hans


    Last edited by Hansoon; 09-18-2012, 09:22 PM.
    “ Sent from my Intel 80286 using MS-DOS 2.0
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  • Synaux
    Service Manager

    Site Contributor
    1,000+ Posts
    • Mar 2012
    • 1224

    #2
    Re: Broken drumshaft BH-BW-200, 250, 350 series

    Originally posted by Hansoon
    Broken drumshaft BH-BW-200, 250, 350 series.

    Collegues where asking for a solution in case the plastic drumshaft
    of the BH-BW-200, 250, 350 series breaks. We use an axle screw M5x16mm. See picture:



    Cut off the remaining parts of the plastic shaft. Widen the hole with a 4.5mm drill and just screw the axle screw in place. If necessary can the axle screw be locked with a drop of miracle glue applied in the hole from the other side of the plastic. Put a very light film of grease on the axle screw metal where the drum rides on.

    Hans
    Sounds like you already have a good solution...?
    My initial thought though is that you might have problems getting it to set straight if you bore out a wider hole...

    Comment

    • Hansoon
      Field Supervisor

      Site Contributor
      2,500+ Posts
      • Sep 2007
      • 3350

      #3
      Re: Broken drumshaft BH-BW-200, 250, 350 series

      Sounds like you already have a good solution...?
      My initial thought though is that you might have problems getting it to set straight if you bore out a wider hole...
      We are doing it this way since more than two years and modifying every Image Unit with it.

      The hole of 4.5mm allows the 5mm thread of the screw to dig into the plastic. One might secure it with miracle glue from the back but not really necessary. Had no problems yet that the screw wasn't straight or came out.

      Hans
      “ Sent from my Intel 80286 using MS-DOS 2.0
      https://www.copytechnet.com/images/smilies/biggrin.png

      Comment

      • blackcat4866
        Master Of The Obvious

        Site Contributor
        10,000+ Posts
        • Jul 2007
        • 22942

        #4
        Re: Broken drumshaft BH-BW-200, 250, 350 series

        Nice work Hans. Do you have a parts number or source for this threaded post? =^..^=
        If you'd like a serious answer to your request:
        1) demonstrate that you've read the manual
        2) demonstrate that you made some attempt to fix it.
        3) if you're going to ask about jams include the jam code.
        4) if you're going to ask about an error code include the error code.
        5) You are the person onsite. Only you can make observations.

        blackcat: Master Of The Obvious =^..^=

        Comment

        • Hansoon
          Field Supervisor

          Site Contributor
          2,500+ Posts
          • Sep 2007
          • 3350

          #5
          Re: Broken drumshaft BH-BW-200, 250, 350 series

          Cat, they are not KonicaMinolta parts but general hardware stuff. I bought them over the Internet. They're called Axle Screw M5x16mm. They cost around 1.0 USD per piece.

          I can send them to you if you want. Just drop me a mail touchpanel[at]rex-technika.com

          Hans
          “ Sent from my Intel 80286 using MS-DOS 2.0
          https://www.copytechnet.com/images/smilies/biggrin.png

          Comment

          • Copyjaya
            Technician

            50+ Posts
            • Oct 2011
            • 59

            #6
            Re: Broken drumshaft BH-BW-200, 250, 350 series

            the broken shaft really bring me trouble.. i look for a smaller screw to screw back the shaft with the housing , but result not so good ..

            Comment

            • Hansoon
              Field Supervisor

              Site Contributor
              2,500+ Posts
              • Sep 2007
              • 3350

              #7
              Re: Broken drumshaft BH-BW-200, 250, 350 series

              Hans
              Attached Files
              Last edited by Hansoon; 09-22-2012, 03:39 PM.
              “ Sent from my Intel 80286 using MS-DOS 2.0
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              • Darren King
                copiertech

                500+ Posts
                • Jul 2007
                • 652

                #8
                Re: Broken drumshaft BH-BW-200, 250, 350 series

                To me, if the drum unit has been rebuilt so many times that the drum shaft has broken off it may be time to buy a new drum unit. Sure, I McGuyver things when needed, but, I know when to say uncle.Lol
                Darren

                Comment

                • Hansoon
                  Field Supervisor

                  Site Contributor
                  2,500+ Posts
                  • Sep 2007
                  • 3350

                  #9
                  Re: Broken drumshaft BH-BW-200, 250, 350 series

                  Darren, sometimes the shaft breaks already before the unit reaches its first rebuild cycle. There seem to be charges which fail much earlier than others. With the previous Di-xxx series with an almost identical construction we never had this problem (worn shafts yes, but not broken) but the Bizhub's B&W series are much more prone to this broken drumshaft problem.

                  Ofcourse when I would work for a large company, where costs are seemingly not so much in the foreground, I would change the unit too instead of repairing. However, I'm an Indy fighting the big boys and I have to look carefully to reduce our costs.

                  Hans
                  Last edited by Hansoon; 09-25-2012, 07:06 PM.
                  “ Sent from my Intel 80286 using MS-DOS 2.0
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                  Comment

                  • Darren King
                    copiertech

                    500+ Posts
                    • Jul 2007
                    • 652

                    #10
                    Re: Broken drumshaft BH-BW-200, 250, 350 series

                    Hmmm. I have rebuilt hundreds of these drum units and never have a drum shaft break. (maybe just lucky). I didn't realize it was a problem. I appologize if I insulted you Hans it wasn't intended.
                    Darren

                    Comment

                    • Hansoon
                      Field Supervisor

                      Site Contributor
                      2,500+ Posts
                      • Sep 2007
                      • 3350

                      #11
                      Re: Broken drumshaft BH-BW-200, 250, 350 series

                      I appologize if I insulted you Hans it wasn't intended.
                      No offense taken Darren, not at all!

                      I'm glad when somebody enriches a discussion with his views. This makes a thread much more valuable for everybody.

                      Thanks for participating.

                      Hans
                      “ Sent from my Intel 80286 using MS-DOS 2.0
                      https://www.copytechnet.com/images/smilies/biggrin.png

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