Home Forums Product Discussion & Questions BeoGram Beogram 5500 arm movement

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  • #50622
    LexBarker
    BRONZE Member

      Hi Forum,

      this is my first post here. I live in Germany, 55 yers old and own several turntables(Sony Biotracer, Beogram).

      I have a Beogram 5500 / 5941 / SW1.2(if this is important for this case).

      First:

      I have cleaned and lubricated the guide bars after the tonearm hanged once during play using teflon based grease.

      It still hangs during play after some minutes and I try to figure out what is happening here. If then restarted, it runs through the record with no issue. From my personal opinion the tonearm is still heavy to move (manually) even after I lubricated both bars. I also replaced both belts using parts from beoparts. When the deck is opened all motors are running fine, but as said the tonearm sometimes gets stuck. What Do I have to check first?

      Second:

      This is a strange one:

      The tonearm using the < and > keys moves slowly (could be normal for Beograms) to the left and to the right. It sometimes hangs during movement when it moves to the left only AND keep pressing <  right from the beginning it only moves until the middle of the record and it stops(motor for the tonearm also stops!) and only If I press then play and then < again the tonearm continue to move to left until the end of the record. Therefor I am not able to start with an inner track of the record when the tonearm is in its rest area .
      Did I somehow confuse the mechanics(I moved the middle gear by mistake)? For me it looks like the tonearm is moving until to the position where smaller records starts and not further(As said only continues to move further when I press Play and then < again) .
      Hope this makes sense,

      LexBarker

      #50623
      Dillen
      Moderator

        The felt clutch could have lost friction.
        Can you tell, if it’s slipping?

        Martin

        #50624
        LexBarker
        BRONZE Member

          Good hint!

          Let me check later today.
          If so, what can I do?

           

          LexBarker

          #50625
          Dillen
          Moderator

            Take apart and clean. In most cases that’ll do it.
            Else, the friction can be increased if you rough up the plastic surfaces a bit.

            Martin

            #50626
            LexBarker
            BRONZE Member

              Hi,

              how can I take it apart without removing the gear on top of it?

              I turned it a little bit and now it works, but as I already opened it for servicing a hint how to take it apart would be great. And with what do I clean it?

              Thanks,

              LexBarker

              #50627
              LexBarker
              BRONZE Member

                Hey Martin,

                once I all put together (Platter, Spinwheel,…) I can confirm the felt clutch is slipping when using the key < to move the arm..

                Okay, now the part where I need your help (see previous post)

                Best,

                LexBarker

                #50628
                Dillen
                Moderator

                  Yes, the cam wheel on top needs to come off.
                  You can take it off and, while keeping the strings tight, take out the worm gear assy with
                  the felt clutch, and put back the cam while working with the clutch assy.

                  Martin

                  #50629
                  LexBarker
                  BRONZE Member

                    Hi,
                    already disassembled.

                    I have the worm gear assy removed.

                    How can I access the felt clutch in the assy and how to clean it?

                    Best,

                    LexBarker

                    #50630
                    Dillen
                    Moderator

                      I normally work within the small space allowed by the spring action.

                      Martin

                      #50631
                      LexBarker
                      BRONZE Member

                        And what do you use to clean it?

                        Bathing it in something?

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