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Pramberger lyre bolt size

  • 1.  Pramberger lyre bolt size

    Registered Piano Technician
    Posted 06-30-2024 14:07

    Greetings

    Anybody know the size of the Allen wrench needed to remove the lyre bolts on a Pramberger grand?

    They are larger than anything I've run across before. 

    Thanks



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    Eric Johnson [RPT]
    [Eric Johnson Pianos]
    [Westport] [CT]
    www.ericjohnsonpianos.com
    One year older and dumber.
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  • 2.  RE: Pramberger lyre bolt size

    Member
    Posted 06-30-2024 16:02

    i don't know the size but you may need to improvise using another tool or a socket set. try going to an auto supply store , ace hardware , harbor freight. you might need metric 



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    James Kelly
    Owner- Fur Elise Piano Service
    Pawleys Island SC
    (843) 325-4357
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  • 3.  RE: Pramberger lyre bolt size

    Registered Piano Technician
    Posted 06-30-2024 16:13

    If it's Samick-made, 3/8" is what I've encountered.



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    Nathan Monteleone RPT
    Fort Worth TX
    (817) 675-9494
    nbmont@gmail.com
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  • 4.  RE: Pramberger lyre bolt size

    Registered Piano Technician
    Posted 06-30-2024 19:01

    Thanks Nathan but 3/8 is too small! It's larger than any other I've seen and the bolt is recessed so I can't grab it with anything. 



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    Eric Johnson [RPT]
    [Eric Johnson Pianos]
    [Westport] [CT]
    www.ericjohnsonpianos.com
    One year older and dumber.
    ------------------------------



  • 5.  RE: Pramberger lyre bolt size

    Registered Piano Technician
    Posted 06-30-2024 19:09

    Ok that's just ludicrous then!  I double-checked and 3/8" is in fact that biggest thing I carry, so this must be something different than what I've seen before.  Hope you can find something that fits.



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    Nathan Monteleone RPT
    Fort Worth TX
    (817) 675-9494
    nbmont@gmail.com
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  • 6.  RE: Pramberger lyre bolt size

    Registered Piano Technician
    Posted 06-30-2024 19:29

    This is kind of down and dirty but you might see if any hex heads of various bolts might fit, then you could unscrew with vice grips. It's worked for me before in a pinch (not on a piano). Or milling one down even if it's close.



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    Steven Rosenthal RPT
    Honolulu HI
    (808) 521-7129
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  • 7.  RE: Pramberger lyre bolt size

    Posted 07-02-2024 11:15
    The largest one they sold at Napa is what I got and it worked. 





  • 8.  RE: Pramberger lyre bolt size

    Registered Piano Technician
    Posted 07-19-2024 10:03

    Thanks Keith, do you recall the size? 



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    Eric Johnson [RPT]
    [Eric Johnson Pianos]
    [Westport] [CT]
    www.ericjohnsonpianos.com
    One year older and dumber.
    ------------------------------



  • 9.  RE: Pramberger lyre bolt size

    Member
    Posted 04-07-2025 18:43

    (Rather than re-construct this whole conversation in a separate question, I'm appending to it)

    Same question, but for a Falcone FG-72D?  I'd measure it but the piano is 60 miles away.



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    Ron Newman
    Santa Fe NM
    (505) 204-8255
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  • 10.  RE: Pramberger lyre bolt size

    Registered Piano Technician
    Posted 07-20-2024 07:59

    You can get an sae and metric set at Harbor Freight for little money



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    Parker Leigh RPT
    Winchester VA
    (540) 722-3865
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  • 11.  RE: Pramberger lyre bolt size

    Registered Piano Technician
    Posted 07-21-2024 20:14

    Thanks but I already have multiple sets. Looking to just buy one. 



    ------------------------------
    Eric Johnson [RPT]
    [Eric Johnson Pianos]
    [Westport] [CT]
    www.ericjohnsonpianos.com
    One year older and dumber.
    ------------------------------



  • 12.  RE: Pramberger lyre bolt size

    Posted 07-22-2024 23:11
    I have to look
    I just got home to California
    Sent from my iPhone