JUBA Bim-Bam

Discussion in 'Clock Repair' started by MuensterMann, Aug 10, 2019.

  1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.
  1. MuensterMann

    MuensterMann Registered User

    Mar 23, 2008
    1,106
    10
    38
    Does anyone know off-hand on a German JUBA bim-bam that has one chime rod for _____ and 3 chime rods for _____, if the bim is on the 1 or the 3? When I got it, the bim one on the single rod followed by the 3-chime chord. I am not sure if it is correct. What is the usual when dealing with 1 and 3 rods, one for bim and the other for bam? Thanks!
     
  2. wow

    wow Registered User
    NAWCC Member

    Jun 24, 2008
    3,277
    115
    63
    Male
    Retired Music Minister
    Pineville, La. (central La.)
    Country Flag:
    Region Flag:
    Usually the first strike is on the higher pitched single rod and the second strike is on the other three which are tuned to a lower pitched chord.
     
  3. MuensterMann

    MuensterMann Registered User

    Mar 23, 2008
    1,106
    10
    38
    Thanks Will, that is what I thought. The bim was so light, and the bam chord was so loud, that it made me pause. What made it worse was that the bam was slow in coming! Now that it is cleaned and lubed, hopefully faster and better sounding!
     
  4. MuensterMann

    MuensterMann Registered User

    Mar 23, 2008
    1,106
    10
    38
    Another thing about this movement is that one side of the barrel arbor sits in a hole in the back plate, but the front only sits in the square of the ratchet disk/wheel. Thus, it inherently has a wobble to it. Has anyone seen this and is it an issue?
     
  5. MuensterMann

    MuensterMann Registered User

    Mar 23, 2008
    1,106
    10
    38
    Here is an image to show what I mean.
    P8030007.JPG
     
  6. wow

    wow Registered User
    NAWCC Member

    Jun 24, 2008
    3,277
    115
    63
    Male
    Retired Music Minister
    Pineville, La. (central La.)
    Country Flag:
    Region Flag:
    That slot is there only so you can remove the spring arbor. The arbor should run on a round section at the inner end of the slot. Remove the click and check it.
     
  7. Uhralt

    Uhralt Registered User
    NAWCC Member

    Sep 4, 2008
    2,977
    244
    63
    Country Flag:
    Region Flag:
    That's how they are usually made.

    Uhralt
     
  8. MuensterMann

    MuensterMann Registered User

    Mar 23, 2008
    1,106
    10
    38
    Are you saying that there is a round something on the inside portion of the plate? I am not sure there is. If the arbor went through something round, then how would you get it out the slot (unless the arbor comes off like a Hermle movement)? I don't have the movement in front of me now, so I cannot check for sure.
     
  9. wow

    wow Registered User
    NAWCC Member

    Jun 24, 2008
    3,277
    115
    63
    Male
    Retired Music Minister
    Pineville, La. (central La.)
    Country Flag:
    Region Flag:
    The arbor has a round spot that rides in the plate. There is a square section on the arbor next to that round section. When you remove the click, you can pull up on the arbor and slide the arbor and barrell out to the side. The arbor remains in the barrell and is removed by opening the barrell like old German movement barrels.
     
  10. MuensterMann

    MuensterMann Registered User

    Mar 23, 2008
    1,106
    10
    38
    Is there anything there to keep the barrel from wobbling? There is a slight wobble that does affect the overall power. Is this just the design and nothing to do about it?
     
  11. wow

    wow Registered User
    NAWCC Member

    Jun 24, 2008
    3,277
    115
    63
    Male
    Retired Music Minister
    Pineville, La. (central La.)
    Country Flag:
    Region Flag:
    It should not wobble. Take the click off and look at what’s happening.
     
  12. shutterbug

    shutterbug Moderator
    NAWCC Member

    Oct 19, 2005
    39,452
    495
    83
    Male
    Self employed interpreter/clock repairer
    Iowa
    Country Flag:
    Region Flag:
    That round area can wear just like a hole. Just harder to bush :)
     
  13. Uhralt

    Uhralt Registered User
    NAWCC Member

    Sep 4, 2008
    2,977
    244
    63
    Country Flag:
    Region Flag:
    The wobble could also be in the barrel or the barrel cap itself. They often wear and need a bushing.

    Uhralt
     

Share This Page