Hello, I prefer tapping on the capsule, on Bechstein I 've seen regulating bolts with a sharp end it is then impossible to tap on it. the tone is audible in the capsule also, and the knock when lifting confirm where you are. Lifting the bolt with 2 fingers is OK for Steinways (a little hard on the fingers). To hold the extreme bolts I've find that the use of a #8 round key (for nuts) is giving us strength and a good holding on these not very accessible bolts. Isaac OLEG Entretien et réparation 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 : pianotech-bounces@ptg.org > [mailto:pianotech-bounces@ptg.org]De la > part de Bill Ballard > Envoyé : samedi 24 mai 2003 02:04 > À : Pianotech > Objet : Re: No Power Yamaha revisited > > > At 07:50 AM 5/23/2003 -0400, Roger Jolly > <roger.j@sasktel.net> wrote: > >>This is interesting. And what kind of a tone are you > listening for > >>"when lifting up on the hammer rail, and thumping down on the > >>balance rail"? What are you doing that will produce a > tone? Playing > >>a key? Will lifting on the hammer rail somehow make a sound? > >> > >>Thanks > >> > >>Terry Farrell > > > >Thump! Thump! Thump! > > Terry, try this. There are three separate sound to be heard from > tapping on the top of the glide bolt stem. One, with the glide in > direct contact with the keybed, two, when the glide bolt is > slightly > off the bed but close enough (think mils) that a finger tap on the > bolt stem will get it to close the gap, and three, when the bolt is > far enough off the bed that the finger tap won't close the gap, ie, > the tap is never conveyed to the keybed. > > This can be done with all keys and the stack on. No need to > disassemble, no need to assume what it'll sound like reassembled. > Just remove the shipping rail, and back the prop nuts up so > that you > can use them as lift points. If you're confused between > sound #1 and > #2, just lift up slightly on the prop nuts. Confused between #2 and > #3, lift up further. Hint: #2 two lasts only a brief instant, maybe > just 15º in the glide. > > You'll be a regular Thumpbellina in no time. > > Bill Ballard RPT > NH Chapter, P.T.G. > > "Never try to teach a pig to sing. > It wastes time and annoys the pig." > ...........Sign on the wall of a college voice > teacher's studio. > +++++++++++++++++++++ > _______________________________________________ > pianotech list info: https://www.moypiano.com/resources/#archives >
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