Questions about key bushings.

[Vincent E. Mrykalo]

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Isaac,
Do you use Balastol on the renner leather?  They do recommend that, 
as that may help the noise problem.  The one thing about leather is 
that they need to be eased a little more drastically than felt, so 
you can't get as snug a fit.

>Dear colleagues,
>
>I have just seen the 20 instruments that are in a little school I 
>will work for next year.
>These instruments are 30 to10 years old. Since 3 years, a lot of 
>work have been done on almost all instruments, so many have been 
>repined, new strings on some, actions refurbishing, new key bushings.
>
>The problem lies on these last, all the key bushing jobs are showing 
>a lot of side play, and even front to back play in some case. I was 
>wandering how an other while relatively decent (but not too 
>expensive !) repair job could turn in a so inefficient result. May 
>be the bushing cloth used was very poor, but, as even the one which 
>are less worn are noisy, I suspect that white glue or Titebond have 
>been used for the gluing, causing the hardness of the felts and the 
>fast worn out.
>
>I consider using leather, for the schools now, I made a few sets on 
>the balance mortise, and find the job to be not very different. 
>Indeed the leather (Renner) is a bit more noisy, but I prefer that 
>to have to sell bushing work every 4 years.
>
>My question was about using leather in the front mortise, and if 
>every kind of key pin will accept the leather bushing. For instance 
>brass key pins may be will be worn out by the leather more than by 
>the felt, so the play will be there , finally.
>
>Is not leather in the front bushing really to hard and noisy under 
>the fingers ?
>
>I've heard that some of you use kangaroo leather , where is it sold 
>? any feedback ?
>
>I was pleased with the 2 sizes of the Renner bushing, on the 
>Bechstein and the B=9Asendorfer I made I did not thin the leather it 
>was very accurate ti begin with (and I did not use any oil on it, as 
>someone wrote once, too afraid to have dirt and may be squeaks with 
>this method).
>
>Thanks in advance
>
>Good Easter day to all, Pessah for some !
>
>Isaac OLEG
>
>
>Isaac OLEG
>
>Entretien et r=8Eparation 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 : caut-bounces@ptg.org [mailto:caut-bounces@ptg.org]De la part de 
>Wolfley, Eric (WOLFLEEL)
>Envoy=8E : mercredi 16 avril 2003 18:01
>=CB : 'College and University Technicians'
>Objet : RE: Bass string fest
>
>I just checked=B7we=E2ve replaced 16 bass strings since school started 
>at the end of Sept=B7 not too bad, considering. Most of this breakage 
>is in the piano major rooms where the pianos do get pounded on. 
>Obviously I don=E2t place an order with Mapes every week, though I 
>check.
>
>~~~~~~~~~~~~~~~~~~~
>
>Eric Wolfley
>
>Head Piano Technician
>
>Cincinnati College-Conservatory of Music
>
>University of Cincinnati
>
>~~~~~~~~~~~~~~~~~~~
>
>
>
>-----Original Message-----
>From: Wimblees@aol.com [mailto:Wimblees@aol.com]
>Sent: Wednesday, April 16, 2003 11:40 AM
>To: caut@ptg.org
>Subject: Re: Bass string fest
>
>
>
>In a message dated 4/16/03 10:20:10 AM Central Daylight Time, 
>WOLFLEEL@UCMAIL.UC.EDU writes:
>
>I do a pass through the practice rooms approx.
>once a week and place an order with Mapes.
>
>
>
>This is interesting. I've been here at UA for almost 2 years, and I 
>have had two bass strings break. Either you guys have harder 
>players, or I'm extremely lucky. How many bass strings to some of 
>you replace per week/year?
>
>Wim


-- 
Vince Mrykalo RPT MPT
Senior Piano Technician
Crane School of Music
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