McLube 444 on Knuckles

[DCrpt@comcast.net]

   Oops I misread your reply.A little after touch will lighten touch??I would think that it give of the feel of stiffness.That is what I have heard from performers who say they like a lot of after touch.    Robin Olson   
> Hello thanks for providing that.
> indeed teflon powder is the max allowed on rollers.
> 
> To lighten the touch a little bit less aftertouch helps a lot, once
> the letoff have occur, no need to have more move of the jack. Better
> for the tone also I'd say.
> 
> 
> 
> ------------------------------------
> Isaac OLEG
> accordeur - reparateur - concert
> oleg-i@noos.fr
> 19 rue Jules Ferry
> 94400 VITRY sur SEINE
> tel: 033 01 47 18 06 98
> fax: 33 01 47 18 06 90
> mobile: 033 06 60 42 58 77
> ------------------------------------
> 
> 
> > -----Message d'origine-----
> > De : pianotech-bounces@ptg.org
> > [mailto:pianotech-bounces@ptg.org]De la
> > part de DCrpt@comcast.net
> > Envoyé : samedi 22 novembre 2003 14:55
> > À : pianotech@ptg.org
> > Objet : McLube 444 on Knuckles
> >
> >
> >         I had an interesting experience last week
> > involveing a 9ft. S'way and an artist who wanted a lighter
> > touch.I take care of the C+A bank of 4 D's and 5 B's for
> > Jordan Kitts Music in Washington DC.Recently an American
> > University piano professor selected one of our D's for her
> > recital.She loved the sound of it,which made me happy since
> > I had put new hammers on it last year and worked on
> > building up tone with lacquer.However she wanted me to
> > lighten the touch.The piano wheighed out normally in a
> > range close to 50 grams.The regulation was OK except I did
> > increase the aftertouch by raiseing key height slightly.I
> > decided to use McLube 444 (liquid) on the key bushings and
> > whippen cushions to reduce friction,and while I was at
> > it,what the hell put it on the knuckles.I had heard Ron
> > Connors mention this at Dallas this summer.I usually use
> > teflon powder on knuckles,but thought I would see how
> > McLube worked.Well I reduced friction alright,a bit too
> > much I am afraid.I found severa!
> > l "cheating" notes as I was tuning it before delivery.I
> > moved the jacks on those notes further in so the tops of
> > the jacks were closer the hammers.The next day I got a
> > frantic call that the piano was broken.The performer was
> > practiceing and was experiencing more repetition problems.I
> > came out and spent an hour or so regulateing all the jacks
> > to the knuckles.The concert was the following day and when
> > I showed up for the final tuning there was a note that said
> > she still had two keys that were cheating.I was
> > concerned,as she was that the piano was not reliable for
> > her concert.I found the notes that were cheating and found
> > their jack to knucle position to be correct.So I moved all
> > the knucles beyond the alignment point with the rosewood
> > insert.I also wire brushed the knuckles to create a nap
> > that would give friction.That worked well and I assured the
> > artist the piano was fine.There were no more problems,and
> > the piano has been performed on twice since then with no
> > problems.So I w!
> > ould say if you are going to use McLube on hammer knuckles
> > be prepared to do a good jack to knuckle regulation,because
> > the lack of friction will create a greater chance for note failure.
> >       I think I might go back to useing teflon powder for
> > knuckles...some friction is a good thing....no friction is
> > a bad thing.  Robin Olson
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> >
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