Karin, FWIW Here are Renner's specs for action components. To achieve these, as I said, season the parts in high humidity for a while and then use the excellent method shown on the front of Steve Brady's book available through the PTG (advertised in the Journal) He uses a spring gauge to measure the various flanges etc I don't think there's a manufacturer anywhere getting action centres spot on...for decent pianos it's well worth the effort to get them right...even more so in your case. If you don't already have them...invest in a good set of sized burnishing needles and a reamer. The spring gauge is quite expensive here (I have no idea how expensive it is in the US), but worth it if you do this sort of work regularly. Uprights Damper flange 5-8 gms Jack flange 2 gms +/- 1 gm Wippen flange 2-5 gms Butt flange 2-5 gms Grands Wippen lever Flange 2+/- 1 gm damper flange 2-4 gms damper block 2-4 gms repetition lever flange 5 +/- 2 gms Hammer shank flange 3+/- 1 gm Jack flange 3+/- 1 gm Cheers Mark Bolsius Bolsius Piano Services Canberra Australia http://www.bolsius-pianoservices.com.au Australian distributor for Dampp-Chaser Climate Control Products Louis Renner Piano Components and Tools Reyburn CyberTuner Visual Tuning Software
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