Hi Patrick, Where are you located? I know that strings that do not render across the bearing points will tear. Due to rust mostly, but also to other forms of crud. A few years back there was a major forest fire in my area and the smoke from the fire coated the tuning pins and strings (everything else for that matter <G> ) The tuning hammer almost felt glued to the pins. Lowering the string a tad before raising to pitch did not seem to help that much to keep from tearing the strings. I found it necessary to use oil on the bearing point at the pressure bar. At first I used Three in One oil Sewing machine oil , but found that while it worked it had a tendency to get on the bass windings and the smell was not what I liked. In the process of searching for a product to use for this purpose Goose Juice was developed! I apply it above the pressure bar, and let a drop run down, catching any excess with a rag. Once dried the juice does not run further but still lubricates. There is no silicon in this product. I have also been using the Juice on centerpins. At Reno several techs recieved the Juice. In my own testing I have found to work as well as or better than the other product used for centerpin lubrication. Joe Goss imatunr@srvinet.com www.mothergoosetools.com ----- Original Message ----- From: "Patrick Greene" <greeneguy@mindspring.com> To: <pianotech@ptg.org> Sent: Sunday, August 19, 2001 8:22 AM Subject: Re: Pitch Raising to A440.......Or Not? > Right now, I am seeing lots of old uprights. If I raised them all the way > up to pitch, I would be breaking strings left and right.... > ----- Original Message ----- > From: Dave Nereson <dnereson@dimensional.com> > To: <pianotech@ptg.org> > Sent: Saturday, August 18, 2001 9:25 AM > Subject: Re: Pitch Raising to A440.......Or Not? > > > > > > ----- Original Message ----- > > From: Farrell <mfarrel2@tampabay.rr.com> > > To: <pianotech@ptg.org> > > Sent: Wednesday, August 15, 2001 4:36 PM > > Subject: Pitch Raising to A440.......Or Not? > > > > > > > I do a lot of pitch raises. Many are significant - 30 cents to 150 > cents. > > > These are pianos whose owner do not have the need of exactly A440. The > > last > > > few I have raised to A441 or A442 - figuring this will help speed > > stability > > > at A440. I have not heard of others doing this. So I must be doing > > something > > > wrong! ;-) > > > > > > Waddaya'll think of such a thing to do? > > > > > > Terry Farrell > > > > If a piano is way flat and they don't necessarily need it at 440, yes, > I'll > > raise it sharp, especially if it's summer (the heat will come on in a few > > months, drying out the board, reducing crown and letting it go flat). Or > if > > they're the types that have it tuned only every few years, I'll leave it > > sharp so it won't need quite as drastic a pitch raise next ime. --David > > Nereson, RPT, Denver > > > > >
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