The hexagonal shank is typical of Renner. I don't know of anyone else doing it. Steinway was putting some Renner part on their pianos for a while, though I don't know if it was these models. I think you will need to shim out the wippen rail (you might try it and see what it accomplishes in terms of the jack contacting the flange) and as Ed mentioned it would be worthwhile looking at the jack angle when at rest under the knuckle. David Love davidlovepianos at comcast.net www.davidlovepianos.com -----Original Message----- From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of Greg Newell Sent: Thursday, November 15, 2007 5:40 PM To: 'Pianotech List' Subject: RE: Steinway action noise David, I'm not sure that I can tell whose parts they are. They don't appear to be Renner. I think the centers look to weird to be Renner and the buckskin wraps under the rep lever. Renner's don't do that. I was not able to get any configuration from the Renner parts kit to look like anything any more workable than what is already there. While I did not directly measure the action spread with different part the all had the drop screw too far in to the rep lever buckskin. Currently the rep lever is so far under the hammer flange that I'm not sure the drop screw is even in play. I've gone through cursory regulation on sample note throughout the action and nothing comes close to eliminating the excess travel of the jack in it's window. Even if the regulation is such that the jack just clears the knuckle there is too much travel on a hard blow and the tip contacts the flange. I could use thicker felt in the lever window but it seems like a bandaid to do that and I'm not finding the real problem. Thoughts? Greg -----Original Message----- From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of David Love Sent: Thursday, November 15, 2007 9:37 AM To: 'Pianotech List' Subject: RE: Steinway action noise Are these Renner parts? The shank/flange seems to be? If so, the spread should be 113 mm. Did you say that it was either 110 or 111? That would place the drop screw in a better position and increase the jack clearance. That can be achieved by shimming the wippen flange. With properly regulated dip and aftertouch, the jack should never get to the position shown. It should clear the knuckle only fractionally. That's my initial thought. David Love davidlovepianos at comcast.net www.davidlovepianos.com -----Original Message----- From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of Greg Newell Sent: Thursday, November 15, 2007 5:47 AM To: 'Pianotech List' Subject: RE: Steinway action noise OK folks, I finally have some pics that might prove helpful. I may have to do multiple emails though so it passes through the filters in a timely fashion. Here's the first showing direct manipulation of the wippen. Note where the drop screw contacts the leather. The jack tip is contacting the hammer flange in between the hammer shank ears. More to follow. Greg -----Original Message----- From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of A440A at aol.com Sent: Thursday, November 15, 2007 8:23 AM To: pianotech at ptg.org Subject: Re: Steinway action noise Greg writes: << . I've forgotten the numbers but remember these are Steinway parts. I wouldn't expect to get something too far out here. >> (ahem), Steinway offers a variety of parts,and there have been stock parts sent me that certainly did not fit. The jack/hammerflange contact is not unheard of. Your problem is more likely in the rails than the parts. If the hammerflange rail is just slightly rotated, there is interference. The pin to pin distance may be correct, but the flange will be out of place. Ususally when this happens, the drop screws are turned all the way up. If no new parts are available, you can often stop the problem by removing the proximal half of the jack, near the top. Regards, Ed Foote RPT http://www.uk-piano.org/edfoote/index.html www.uk-piano.org/edfoote/well_tempered_piano.html <BR><BR><BR>**************************************<BR> See what's new at http://www.aol.com</HTML>
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