This is a multi-part message in MIME format. ---------------------- multipart/alternative attachment I'm sorry I did not make it clear, but I measured a 5 to 10 gram = reduction in downweight before I ever tefloned the knuckles, which I = knew would help a lot. I was just so surprised at the effect the protek = had on the centers. I didn't take hammers off and swing test 'em, I = should have, and I will if this comes up again. The piano sat in its box = in summer humidity since last tuned, from may to july. Maybe the protek = effected the wood which was squeezing the teflon centers, I don't know. = But anyway, Roger, I appreciate the ramblings, anytime. ----- Original Message -----=20 From: jolly roger=20 To: pianotech@ptg.org=20 Sent: Saturday, August 04, 2001 12:15 AM Subject: Re: Protek & Teflon Hi Ken, The big bag for your buck is the knuckles, those 70's = knuckles are pretty rough. I'm just rebuilding a D in the shop, and = hung a few new, and improved sample shanks. Then checked UW/DW = differences. 7gms bass to 5gms trebles. The tefon bushing had so many swings, I thought it was new perpetual = motion type thing <G> So very little friction there. New ones were = 5swings. Over all weight of shanks, within 1gm. The new knuckles look more like Kangaroo skin than Buck skin, any one = know for sure? But they have a nice smooth look, and feel. Knuckle = height consistent. The new Steinway parts are very nice, and this set has lived up to the = new and improved hype. Hammers prefiled and pre juiced, seem nicely = shaped and quite firm. Wippens tavelling and rotation required was on = a par with Renner. 2gms lighter Most weighed between 19.5 and 20gms. = All jacks centered thro' the balancier slot. Zero adjustment required, = yes read zero.=20 Nice flange screw clearance to allow enough lateral movement for = easier alignment. The under lever assy, nicely finshed, pretarvelled and spaced. No obvious splinters on any of the parts. Seems some one has = sharpened the cutting tools. Joking aside, nicely finished. The way things look I should be able to remove quite a bit of lead. = (6 leads in the bass keys.) In the past I have been one of their harshest critics, if they keep = this up I will have to eat crow, and will be happy to do it. Just some extra rambling observations. regards Roger At 10:29 PM 8/3/01 -0400, you wrote:=20 I service a S&S D at a local college, and recently the pianist = complained of heavy touch. It's a '72 teflon, and the downweight was around 70, = upweight around 30 or so. I used Protek on an experimental hammer center or = two and measured a 5 to 10 gram reduction in downweight. Has anyone run into = this before? I lubed all centers and used teflon on the knuckles and all = was well (all things considered). The pianist called to say how happy she was = and what a miraculous job I had done making the piano playable again. = What gives? Ken Jankura Newburg, PA ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/7f/2a/99/48/attachment.htm ---------------------- multipart/alternative attachment--
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