[pianotech] Young Chang

[tom]

Matthew,

I'll first suggest the purchase of this book from the ptg web site.

Learning the correct names of the parts will give you more credibility with
your clients and peers.

I think you are referring to the stretcher

 

 

Piano Parts and Their Functions
Complied by Merle Mason, RPT; Illustrated by James E. Campbell
This illustrated guide includes diagrams and descriptions of grands and
vertical parts and their functions. 98 pages.

 

As to your question, the oft discussed Young Chang action bracket issue
comes to mind first. Blocking hammers is one of the symptoms

Look at the letoff dowels where the hammers are not blocking . They may be
much lower than the others. Also check for clearance between the drop screws
and the pinblock. Eventually the screws will drag on the block if this is
indeed the action bracket problem. 

The pinblock is the wood thing with all the holes in it <G>

Best wishes,

Tom Driscoll  (Former nomenclature cop emeritus)

 

P.S . It's also possible that this is a keyframe issue. Check the glides and
the frame itself for warping or glue joint failure.

 

 

  _____  

From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of Matthew Todd
Sent: Monday, February 02, 2009 7:49 AM
To: pianotech at ptg.org
Subject: [pianotech] Young Chang

 


A few weeks ago, I went to tune a Young Chang grand.  Here's what I
discovered, rather quickly I might add.

 

When you played each note in the bass and treble, the hammer would block
against the strings.  The entire tenor section was fine.  And when I slid
the action out, I had to press the hammer shanks down in the bass so the
heads would clear as I slid.

 

Anyone have a similar experience?  Like I said, the entire center of the
keyboard was just fine.  Plus, as I stuided the action, it looked like the
hammer line was not even.  It started high in the bass, and gradually
decreased in height to note 88.  

 

Also, I have a question.  What do we call the piece of wood that sits behind
the fallboard when its open?  The piece of wood that we always make sure the
hammer heads are clear of as we slide the action towards us to remove it.
Anyways, that is what I used to discover the hammer heads were not in a
line.  In the bass, the hammers were just slighty above, and I had to press
down on the shanks.  And then in the treble, the heads were quite a bit
lower.

TODD PIANO WORKS 
Matthew Todd, Piano Technician 
(979) 248-9578

http://www.toddpianoworks.com <http://www.toddpianoworks.com/> 

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