---------------------- multipart/alternative attachment Hi Kieth, I recommend reaming out and burnishing to #21 to get rid of the garbage. Roger Jolly. Technical Consultant. Samick Music Corp. At 08:44 PM 3/10/2004, you wrote: >I didn't look at them under a microscope but I think I should have gone >another pin size larger so the bad felt and crap got reamed out. I hope it >lasts. Next repinning job will only take me two hours. > >Keith Roberts > >On Wed, 10 Mar 2004 18:47:10 -0700, Kevin E. Ramsey wrote > > OK, I haven't read all the posts, but now I think I know what you're > talking about. Locked up flanges on Samick pianos, when you re-pin you > see black stuff on the old pins, right? I've seen a lot of this, like > whole actions or damper underlevers locked up so tight that you can hold > up the underlever parallel to the floor, supporting even the lead weights > while you're holding the flange. Roger says it's an application of > graphite gone bad. I talked to one of their service reps who once told > me that there was tallow in the felt, and that if I just got a hair-dryer > in there and worked the flanges back and forth, they'd free up. He also > said that the flanges must have been exposed to heat at some time for the > tallow, which may be like the lanolin normally found in wool, to > condensense onto the pin. Funny, when I looked at some of the pins under > magnification, it looked like a plating problem to me to. I work for a > dealer who sells samicks, so I'm the one to go out on these kind of calls > a year later. I've also talked to one or two other techs who did a repin > job, only to have the problem return a year later. > > > > It's still a problem, but we're seeing it less and less. > > Kevin. > > > > I'm hoping that I'm not responding to something else, but this is a > problem I'm well aware of, anyway. > > > ----- Original Message ----- > > From: <mailto:Richard.Brekne@grieg.uib.no>Richard Brekne > > To: <mailto:pianotech@ptg.org>Pianotech > > Sent: Wednesday, March 10, 2004 3:44 PM > > Subject: Re: ***Re: Nine foot something - quickie hammer centre check > > > > Hi Keith > > > > forget my last querry about the pianotype.... John suggests plated pins > > being the problem... I wasnt awared that Samick used plated centers... > > can anybody confirm this one way or the other? > > > > Cheers > > RicB > > > > kpiano wrote: > > > > >>Black stuff in centerpin bushings ??? sounds like your typical graphite > > >>to me. > > >> > > >>RicB > > >> > > >> > > >> > > > > > >That's what I thought but the way the rest of the piano is, I > wondered. When I pulled some of > > >the flanges there was paper on both sides of the flanges. sometimes > equal amounts. The guy > > >that traveled the shanks the second time didn't do any better job than > the first guy. > > > > > >While I was reaming the bushings with my new set from Joe Goss, they > were making a squeal > > >sound. I didn't get out my accutuner so I can't tell you what pitch it > was. Just on a slow push > > >pull. Does Joe harmonically tune his reamers? Old damper heads from an > upright make a good > > >set of handles for them. > > > > > >Keith Roberts > > >_______________________________________________ > > >pianotech list info: > <https://www.moypiano.com/resources/#archives>https://www.moypiano.com/resources/#archives > > > > > > > > > > > > > > _______________________________________________ > > pianotech list info: > <https://www.moypiano.com/resources/#archives>https://www.moypiano.com/resources/#archives > > > ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/b7/de/60/ca/attachment.htm ---------------------- multipart/alternative attachment--
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