Repinning....Can I pullease get more responses?

Piannaman@aol.com Piannaman@aol.com
Wed, 14 Sep 2005 01:30:06 EDT


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Matthew,
 
Just a hunch....
 
I work on a Samick SG 150.  I'd be willing to bet that your Shafer is  a 
Samick-made product.  But if yours is a 1968, it predates mine  by 30 years.
 
I ran into a similar problem.  Make sure you look closely at  where the 
problem lies.  I  found that a good many wippen, jack,  repetition, and hammer 
centers were essentially seized up  .  A couple  of underlever flanges were 
sluggish, too.  I have probably replaced 1/3-1/2  the center pins in the piano in 
the last 3 appointments.
 
When you start removing center pins, you may discover that there is  dark, 
sort of gooey stuff on them.  If that is the case,  I believe it is graphite 
from graphite impregnated flange bushing  cloth.  (My fear is that I will go back 
one time and find that the replaced  pins will start seizing, too).  
 
The piano that I work on suffers from sitting in a picture window and  
getting extreme doses of sunlight in the winter months.  I am not certain  that heat 
exacerbates the condition, but it seems to get worse when the sun  hits piano 
squarely.
 
Be patient, work slowly until you get the hang of it.  I find it a  nice 
break from tuning--for the first couple of hours, at least!  
 
I have had more than one 4 hour session in the customer's home.  It  saves 
you drive time if you can do it there.  Having a stand or platform of  some kind 
for the action is essential.  
 
Good luck!
 
Dave Stahl
 
In a message dated 9/13/2005 7:38:04 PM Pacific Standard Time,  
toddpianoworks@yahoo.com writes:

Some of the worst hammers there don't swing at all.  About six of  them are 
that bad, and others have between one to two.  There are some  others that 
"seem" to be fine.  I say "seem" because I tested their piano  by playing it 
first, finding the really bad ones, then taking the action out  and really 
examining them to pinpoint the problem.
 
Matthew
"William R. Monroe"  <pianotech@a440piano.net> wrote:

Hi  Matthew,

You wrote: "Could this just be related to  swelling?"

Only you can tell us. Is it humid there now? Does it get  dry in the
winter, and then, are the hammer centers more free? You'll  need to do some
analyzing yourself and determine what is your best  solution. If the hammers
are really seized up (less than a couple  swings), I'd be comfortable saying
that it's not just humidity, and opt  for repinning. Of course, if the
bushings are all full of nastys, maybe  needs new bushings?

Once you've determined the cause of the problem,  then determine the solution
that works for you and your  client.

Respectfully,
William R. Monroe



-----  Original Message ----- 
From: "Matthew Todd"  
To: "Pianotech" 
Sent:  Tuesday, September 13, 2005 6:20 PM
Subject: Re: Repinning! ....Can I  pullease get more responses?


> I believe I will take the  action home with me. These are hammer centers.
The hammers are very tight  to move! Could this just be related to swelling?
>
> This is not  a Steinway. I don't believe I have the Mannino, but I do have
a set I  ordered from Schaff, and a good center pin punch.
>
>  Matthew
>
> J Patrick Draine wrote:
>  Matthew,
> If you are already skilled & speedy at repinning action  parts, go for
> it. But it sounds like you aren't so ... bring the  action to your
> shop. It will probably take you more than 4 hours  (are these hammer
> centers? jack centers? damper lever  centers??).
> Why are you repinning? Parts frozen up? Are treatment  with Protec
> CPL, or sizing the bushings with an alcohol/water  solution, viable
> alternative solutions?
> Is this a Steinway??  If so, it's likely you're dealing with
! > verdigris, and repinning is  seldom the correct remedy (parts
> replacement is best).
> Give  us more details and we'll be able to give more precise advice.
> Do  you have appropriate tools? The Mannino broaches, a quality center
>  pin punch, etc?
> Patrick Draine
>
> On Sep 13, 2005, at  5:43 PM, Matthew Todd wrote:
>
> > I will be undergoing a  repinning project on a client's grand. The
> > "G" Piano Works  guide says it takes 4 hours. Is it appropiate to
> > do this  project in the client's home, or do I need to take the
> > action  with me and do it in the shop? If I take the action with
> > me,  that brings up another question. If it's raining, how do you
> >  all prepare and protect the grand action??
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