David/Ric/List, Here's another way (although maybe not a fast, emergency method). It was originally posted by Barbara Richmond, referring to prepping new Kawai pianos. But I don't see why some of it might not work in other cases, especially on fairly new hammers. > Voice those hammers! Use small (I think mine are 4 1/2 or 5") >vise-grips (OK, you can groan here), jaws set to squeeze uniformly on >all hammers. Squeeze shoulders enough to make a small imprint. This >should produce a slight cupping of the hammer. Experience will teach you >how much pressure to apply. Using one big strong needle in a heavy >voicing tool, drive needle in shoulders parallel to the hammer moulding >at a depth and using enough strokes (3-6?) to help straighten out the >cupping. Don't destroy the hammer!--light sanding/shaping is allowed >after needling. Remember to support the hammers while needling. >Replace action and listen. The sustain should be much improved. > > For the next step, I use my little Yamaha upright voicing tool with >three needles. Insert needles parallel to the strike surface, running in >the same direction and just under the string lines. Replace action and >listen. This should take away some of that brittle attack. Again, >experience will teach how much and how deep. There needs to be a small >layer of "soft" at the strike point. Voice the same way for the soft >pedal. Listen for any twangs indicating that the hammers aren't square to >the strings. Fix. Avery >What to do in a pinch? I Pinched! >You mention pinching & squeezing and it really does work. SNIP >I came up with the guage that measures tuning pin size. >It has two pointy tips. >(Now I reveal my willingness to be a heretical problem solver when in >an emergency.) SNIP >David Sanderson >On Fri, 4 Dec 1998 23:52:41 -0600 "Richard Moody" <remoody@easnet.net> >writes: >>In that case, I offer or proffer, which ever the case may be, squeezing. >> Either this "art" is lost or the practice so universally scorned that >>you will have to make your own squeezing pliers. I do not know how this >>will work on hammers saturated with acetone plastic keytop mix, but would >>not hesitate to try it. >> >>Richard Moody
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