CAUT

  • 1.  Yamaha mystery

    Registered Piano Technician
    Posted 03-11-2020 19:07
    Greetings List, 
    A local tech who is not on this list reports looking at a 1968 model G0 Yamaha 4'8" grand that appears to have no way to remove the keyboard end blocks for action removal.  He says there are no visible screws anywhere holding it in, whether top, bottom or side.  I asked him if there were rubber case bumpers on top of the blocks?  He says yes, and was aware that a screw could be underneath, but that the buttons do not seem to be able to be removed without damaging them, so assumed  that wasn't the answer.   I have no experience with this model.  Anybody know off hand what's going on?  Am I right in suspecting screws are underneath those buttons?
    Thanks in advance,

    Greg Granoff
    Humboldt State University


  • 2.  RE: Yamaha mystery

    Registered Piano Technician
    Posted 03-11-2020 19:57
    Was he able to pull the fallboard off and look for screws behind that area?

    Also, would there be screws on the front of the cheek blocks that would need to be loosened? (I've never seen this before, but hey, it seems like an option.)

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    Benjamin Sanchez, RPT
    Piano Technician / Artisan
    (805) 315-8050
    www.professional-piano-services.com
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  • 3.  RE: Yamaha mystery

    Registered Piano Technician
    Posted 03-11-2020 21:17

    He should check to make sure the key blocks are not actually part of the keyframe... some older Boesendorfers are like this. In that case, a single bolt is the locking mechanism to hold the action in. It will be under the key bed nearer the treble if I remember right.

    But I would check for screws under those buttons too!


    Sent from my Verizon, Samsung Galaxy Tablet





  • 4.  RE: Yamaha mystery

    Posted 03-12-2020 07:02
    I seem to remember someone finding cheek block screws were either under the legs or the front leg bolt did double duty.
    My memory is not good enough to help me with what make of piano this was though…

    Jeff




  • 5.  RE: Yamaha mystery

    Posted 03-12-2020 04:19
    The front legs probably have access holes to the check block screws. If so, sometimes the movers put the legs on backwards and you have to spin the legs around in order to get to the cheek block screw.

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    Douglas Mahard
    Bethlehem CT
    203-266-6688
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  • 6.  RE: Yamaha mystery

    Registered Piano Technician
    Posted 03-12-2020 11:47
      Many thanks to all who responded regarding the Yamaha cheek block removal question.  I spoke with the tech who encountered the problem and Douglas's reply suggesting access holes in the legs seem to have rung a bell.   He apparently noticed a hole in one of the legs but at the rear portion of the top, indicating the legs may have been turned around, or put in the wrong locations as suggested.   Gonna find out soon....  





  • 7.  RE: Yamaha mystery

    Registered Piano Technician
    Posted 03-12-2020 11:45
    I encountered one of these pianos at a church when I was tuning in KC. The action screw is accessed through a hole in the top part of the bass leg. On the piano I was working on, the bass and treble legs were switched at some point, so if there is a hole in the top part of the leg on the treble side, move it to the bass. So much for easily pulling the action! 
    Lucy Urlacher

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    Lucy Urlacher
    Columbia MO
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  • 8.  RE: Yamaha mystery

    Registered Piano Technician
    Posted 03-12-2020 11:48
    You might try calling Yamaha tech support: 714-522-9980. They're very friendly, love to help, and they know these kinds of things.

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    Geoff Sykes, RPT
    Los Angeles CA
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  • 9.  RE: Yamaha mystery

    Registered Piano Technician
    Posted 03-12-2020 11:53
    Thanks Geoff.   That was the fallback option, I think.  More fun initially to ask the group....
    Greg