I tuned a small Samick grand two days ago. Things were sticking everywhere. Damper levers, were sticking way in the back of the lever where it screws into the rail. Hammer flanges were sticking, even the jacks. Repinning these parts was the only solution. Some were sticking so badly, I had a difficult time removing the center pins but, finally managed. Once everything was repinned, the flanges reamed and properly fit with the right sized pin, everything was working fine again. The key, pardon the pun, is to locate the part that actually sticking. In my case, it was simple. Lift the damper and it stayed there. Raise the hammer, it stayed there. Move the jack, same thing. Other times it is not so easy. If it lifts and sticks only with the damper pedal and not with the key being used, it is probably located in the damper some place. If the "key" sticks using the pedal, it could be in the action or, it could also be something else as simple as a warped key slip that is warped just enough to catch the front of the key just barely enough to hold it down. I've encountered this with sharps catching the whites as well. So many possibilities. Track it down using the process of elimination. From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of Marcel Carey Sent: Friday, October 23, 2009 6:26 AM To: Pianotech List Subject: Re: [pianotech] sticking key Martin, if you read Ed's post again, you will notice that the complaint was that a note was sticking "when the pedal was used". Now this indicates that without the damper's help to push the back of the key down, the key stays down. On this particular brand of piano, the culprit is probably the hammer flange center-pin. And the fun thing is that when you get to the piano it won't do it at first, but after playing for a while it seems to heat up and stick. Play the piano for a while and then take the action out. Raise all the hammer shanks 90 degrees, slowly push them back and watch them fall. You will find out which ones are problematic. And when you find out which ones are, REPIN. lubrication won't work on the long run. Marcel Carey, Sherbrooke, QC _____ From: pianodoctor at msn.com To: pianotech at ptg.org Date: Thu, 22 Oct 2009 21:47:01 -0400 Subject: Re: [pianotech] sticking key Most likely he means the damper is sticking up on a particular note. > Date: Wed, 21 Oct 2009 20:48:00 -0500 > From: mike.spalding1 at verizon.net > To: pianotech at ptg.org > Subject: Re: [pianotech] sticking key > > Ed, > > Did the player describe precisely is meant by "one of the notes sticks" > ? You'd be amazed what a wide range of malfunctions is included in this > general description. > > Mike > > Ed Carwithen wrote: > > The piano is a small (4'5") Wurlitzer grand. I tuned it in August. > > The player is complaining that one of the notes sticks when the damper > > pedal is in use. Can anyone think why this might be happening? I'll > > be going back to check it in a couple of days. > > > > Ed Carwithen > > John Day, OR > > > > _____ Windows 7: I wanted more reliable, now it's more reliable. Wow! <http://microsoft.com/windows/windows-7/default-ga.aspx?h=myidea?ocid=PID247 27::T:WLMTAGL:ON:WL:en-US:WWL_WIN_myidea:102009> _____ À vos marques Prêts Partez profiter d’une offre Windows 7 alléchante Découvrez <http://go.microsoft.com/?linkid=9691640> maintenant des offres Windows 7 phénoménales _____ avast! Antivirus <http://www.avast.com> : Outbound message clean. Virus Database (VPS): 091022-0, 10/22/2009 Tested on: 10/23/2009 9:46:51 AM avast! - copyright (c) 1988-2009 ALWIL Software. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech.php/attachments/20091023/7462c2dc/attachment-0001.htm>
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