Using sandpaper on tuning pins.

[Ed Sutton]

MessageShawn-

I'd like to know more about the piano that had jumping pins when restrung after CA repair.
Most technicians seem to like CA for loose pins, and don't report problems with restringing.

In the early days of CA use, people talked of "hosing down the block," i.e. flooding the pins with CA.
Now most technicians prefer to apply a few drops at a time, just enough to get the pin to hold.

Ed Sutton
  ----- Original Message ----- 
  From: Shawn Brock 
  To: Pianotech List 
  Sent: Sunday, July 20, 2008 11:36 AM
  Subject: Re: Using sandpaper on tuning pins.


  Al and list:
   I have never liked shimming tuning pins with sandpaper.  How ever it has always worked when I have had to use it.  The one part I strongly disagree with on this thread is the use of CA glue.  I could condone the use of CA on a piano that never stands a chance of being restrung.  I would and have used CA many times in this instance.  For a piano of any value I think twice about using CA though.  Ever try restringing a piano that has had CA used on it before?  You will have vary jumpy pins!  For all I know maybe most of you would rather put in a new block if you have to use larger pins.  Some folks are like that...  I have no problem however restringing with number 3 pins.  Un like one fellow I know, who insists that the block must be replaced if you are going to go through all the trouble of bringing the piano into the shop.  He is not against restringing in the home and keeping the same block though.  Guess I'm just backwards, I don't think I would ever want to restring a piano in someone's home...  Guess I'm straying from the subject at hand aint I?  So, all I will say is, if you or anyone is ever going to restring the piano with the same block, DON'T use CA!  If you only have one or two loose tuning pins DON'T USE CA!  If the piano is never going to be restrung (a Whitney) and has multiple loose pins, hose er down!  The stuff will work like a charm!  Just keep in mind that the future could hold consequences!

  Shawn Brock, RPT
    ----- Original Message ----- 
    From: AlliedPianoCraft 
    To: Pianotech List 
    Sent: Sunday, July 20, 2008 9:44 AM
    Subject: Re: Using sandpaper on tuning pins.


    I've successfully used CA many times on really loose tuning pins. Much easier fix with no chance of breaking the becket or string. I can't see why you would do it any other way. Last, last resort, sandpaper does work, sand side to wood. Determine the grit by how loose the pin is. 80, for really loose pins, 120, for med loose & 220 for, I really should have used CA.

    Al Guecia
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