Young Chang brackets - again

[Ken and Sharon Schneider]

I have done about 8-10 replacements of brackets. Now, I automatically drill
out all of the screw holes with a 1/8 " bit and fill with a 1/8" dowell
glued in to the hole. I then chisel all end shims from the key frame. While
the dowels are drying, I install the brackets on the stack and try to set
the flange pin to whippen dimension as close as possible-(pay attention to
which vintage YC you are working on; there are two sets of dimensions) After
the dowels are dry, I reset and re-align the stack to the capstans.

I then clamp the stack and frame to my bench and see if I have enough key
travel and hammer travel to be "in the ball park" for future regulation. If
this works, I then drill the new holes for the screws, using a long bit for
the slanted middle brackets. These screws go in last. Before tightening, I
rte-shim the frame ends to the stack. Total time about 1 hour not including
regulating.

-----Original Message-----
From: Geoff Sykes [mailto:thetuner at ivories52.com] 
Sent: Thursday, April 24, 2008 5:58 PM
To: 'Pianotech List'
Subject: RE: Young Chang brackets - again

 

Thanks, Wim. I'll give them a call.

 

 


 

. Geoff Sykes, RPT
. 626-799-7545
. www.ivories52.com <http://www.ivories52.com/>  

-----Original Message-----
From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of Willem Blees
Sent: Wednesday, April 23, 2008 7:21 PM
To: pianotech at ptg.org
Subject: Re: Young Chang brackets - again

Geoff

Call YC at 866-798-6979 Ext. 136. Ask for Sam or Phil. YC will send them out
for free, but your customer will have to pay for the installation and
regulation.

Since you've done some "regulation" already, you're going to have to undo
that. The last one I did about 4 weeks ago took me a little over 3 hours.  

One bit of advice that helps. Put the end ones on first. When you do one,
before tightening the wippen rail screw, line up the jack with the knuckle
core. Then do the other end, followed by the middle ones. For each one,
check the jack/knuckle alignment. You might still have to do some tweaking
of this alignment, but everything else will more or less fall into place.
I've done 4 of these since I've come to Hawaii, and what I've just described
has worked for me. 

Willem (Wim) Blees, RPT
Piano Tuner/Technician
Honolulu, HI
Author of 
The Business of Piano Tuning
available from Potter Press
www.pianotuning.com



-----Original Message-----
From: Geoff Sykes <thetuner at ivories52.com>
To: Pianotech at Ptg. Org <pianotech at ptg.org>
Sent: Wed, 23 Apr 2008 3:01 pm
Subject: Young Chang brackets - again

Greetings all --

 

I looked in the archives and the last time this subject appears to have come
up was about a year ago. 

 

Subject: Young Chang G-175 baby grand, sn: G 030523, date is 1987.

 

Every time I visit this piano I have to lower the hammer height. My last
visit was about a year ago. At that time I did some hammer reshaping and
regulation. However, when I revisited this piano last week I had to lower
the hammers almost 1/4". 

 

Can someone verify if this piano falls into the expanding bracket window?
And if yes, what is the latest on contacting them for support. 

 

Thanks --

 

-- Geoff

 


 

. Geoff Sykes, RPT
. 626-799-7545
. www.ivories52.com <http://www.ivories52.com/>  

 


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