Bonk

[Isaac OLEG]

This is a multi-part message in MIME format.

---------------------- multipart/related attachment

------=_NextPart_001_004C_01C332D6.F3EF6B10
Hello,

If the strings ring normally, something is blocking the hammer or the
damper - are the stop rails of the jack in place, is the let off rail in
place, is a pencil laying in the action ? (kind of "did you put gasoline in
the engine"  I may admit ;>)

I've run in this because the letoff rail was advanced and was restricting
the course of the whippen, when checking slowly the letoff seem to occur,
but when playing : BONK. the hammer is not driven up to the strings, the
damper barely lift, and so on.
It works very well with a pencil blocking the system too !

A few luminous ideas !

Hope it helps.

Isaac OLEG



Isaac OLEG

Entretien et réparation de pianos.

PianoTech
17 rue de Choisy
94400 VITRY sur SEINE
FRANCE
tel : 033 01 47 18 06 98
fax : 033 01 47 18 06 90
cell: 06 60 42 58 77

  -----Message d'origine-----
  De : pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org]De la
part de Richard Strang
  Envoyé : samedi 14 juin 2003 23:13
  À : pianotech (E-mail)
  Objet : Bonk


  This is Richard Strang, from Panama. I hope this email finds you all in
good health.
     I have ran into several pianos that all have the same problem, which I
believe is caused by something that may require major repairs, but I am at a
loss as to what the real problem is. The problem is this. You can play all
the keys to check all the notes, and you'll come to a section of notes that
won't play. The hammer hits the string, but the only sound it makes is,
BONK! The strings do no resonate as they should. You can pluck the strings,
and they sound okay. You can hold the damper off the strings, but when the
note is played, the only sound it makes is, BONK! It sounds almost as if the
hammer is hitting wood, instead of the string. This is only in a section of
notes, and in the case of the U1 I inspected today, it was a little over an
octave's worth of notes in the upper tenor section, just before the treble
break. All the bass and all the treble was okay.
     Is this a problem with the bridge somehow? I have seen this problem
where only two or three notes are affected, and another piano where the
entire tenor section was dead, and I have had no solution. I feel bad that I
have studied and been in the practice for so long, but have no solution to
this problem. Can someone help me out? Thank you.



   Richard Strang




----------------------------------------------------------------------------
--


------=_NextPart_001_004C_01C332D6.F3EF6B10
An HTML attachment was scrubbed...
URL: https://www.moypiano.com/ptg/pianotech.php/attachments/7d/9e/12/4f/attachment.htm

------=_NextPart_001_004C_01C332D6.F3EF6B10--

---------------------- multipart/related attachment
A non-text attachment was scrubbed...
Name: not available
Type: image/bmp
Size: 12098 bytes
Desc: not available
Url : https://www.moypiano.com/ptg/pianotech.php/attachments/b4/cf/f9/16/attachment.bin

---------------------- multipart/related attachment--