This is a multi-part message in MIME format. ---------------------- multipart/alternative attachment If the keys genuinely have no lead in them, then taking weight off the = hammer is probably a mistake. I would guess they are on the light side = since 60 grams downweight with no lead (depending on leverage) suggests = a pretty light hammer to begin with and there should be plenty of room = to add weight to the front of the keys. This is an area that really = requires looking at the whole picture to assess leverage and the = relationship between the front weight of the key and the hammer weight. = Read the Stanwood articles I suggested earlier. They will give you an = idea of the things you should be thinking about. David Love ----- Original Message -----=20 From: Wimblees@AOL.COM=20 To: pianotech@ptg.org=20 Sent: November 09, 2001 2:30 PM Subject: Re: Weighing Off An Action In a message dated 11/9/01 12:39:22 PM Central Standard Time, = pcpoulso@pacbell.net writes:=20 Hello All: I have hung some new hammers and shanks on the action = from a Edmund Gram baby grand. It has no key weights, and with the new = parts the downweight on all the keys except the upper two octaves is in = the 60+ gram range. The friction levels in the upper octaves are = acceptable, and as the rest of the action has the same parts and has = been reconditioned the same way I don't believe that friction is the = culprit here. However, I have never weighted an action before. I am = going to look through the Journal CDs for articles on weighing off an = action, and would appreciate any advice or input as well. Is this a = case of fools rushing in where angels fear to tread, or an opportunity = to learn a new skill? Thanks, Patrick Poulson, RPT Patrick=20 You might want to talk to Wally Brooks about this. There is a lot of = differences is the weight of hammers. Did you by any chance keep the old = hammers and shanks? If you did, weigh some of them, and then weigh the = new ones. According to Wally, one once of hammer weight adds about 6 = ounces to downweight, or visa a versa. If you didn't keep the old set, = you might want to take weight off the hammer and shank, and see if that = reduces the downweight.=20 Wim=20 ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/b1/eb/02/19/attachment.htm ---------------------- multipart/alternative attachment--
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