Pianotech

  • 1.  Bedding a large gap in front rail

    Registered Piano Technician
    Posted 05-05-2022 10:50
      |   view attached
    Hi All,

    i have a Baldwin L here with a knocking noise from a front rail needing to be bedded. The gap in the middle is 2mm. And each end is bedded. I have tried adjusting the glide bolts hoping someone caused a problem there. But these seem fine. No improvement.

    Normally I would just sand as appropriately to bed but this gap is large. See attached photo.

    Suggestions?
    TIA,
    Daniel

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    Daniel Achten
    Chattanooga TN
    423-760-2458
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  • 2.  RE: Bedding a large gap in front rail

    Registered Piano Technician
    Posted 05-05-2022 13:55
    Maybe judicious kerfing of the front rail.

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    Larry Messerly, RPT
    Bringing Harmony to Homes
    www.lacrossepianotuning.com
    ljmesserly@gmail.com
    928-899-7292
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  • 3.  RE: Bedding a large gap in front rail

    Posted 05-05-2022 15:00
    I would examine the keyframe for warpage,broken/loose keyframe joinery, or for previous bad repair to get a good assessment of the problem for a good solution.





  • 4.  RE: Bedding a large gap in front rail

    Registered Piano Technician
    Posted 05-05-2022 15:26
    Thank you guys.

    I made a rookie mistake and overlooked the front rail glide bolts in the key bed. I never fully removed the action so I didn't even notice them at first.

    I adjuated them and all the knocking went away. Regulation is acceptable.

    Thanks again!

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    Daniel Achten
    Chattanooga TN
    423-760-2458
    ------------------------------