<html><body> <DIV>This is slightly off topic here.But  the Samick dampers sticking problem is not caused by humidity.It is caused by friction heating up a chemical in the felt that then causes the felt to expand and the flange to stick.The best cure is 50/50 alcohol and water treatment over night followed by  re-pinning and reaming any sluggish flanges.                  Robin Olson RPT</DIV> <DIV> </DIV> <BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">-------------- Original message -------------- > Hi John, > Photographing the install takes lots of light considering that you want a > picture of black parts on black beams. In my case it is worse because I > just put an !*#%&~undercover under my wife's piano. I'm going to invest in > a lot of black tacks for my next undercover job. Has anyone tried drilling > ventilation holes between the board behind the damper tray and the > conditioned cavity between the beams? I've been very tempted while easing > damper flanges, Wurlitzer by Samick strikes again. > > I think the only reason to do an under the beams installation is when there > is not enough room between the beams to fit the humidifier. I figure to > keep about 3/8" between the baffle and the ribs of the soundboard. On some > pianos that is above the beams and on some that is between the beams. I > don't let the bars rest on the beams as that is a potential source of > buzzing. Cut them short if you need to. > > The electrical cords come folded and tied when you get them. Just pull out > enough to reach and then tighten the twist tie. I then put a wire clip > close to this coil and fasten to the side of a beam. Yes they say that > those can form something like resistance coils when you're welding but the > wattage is much lower, I don't think it's and issue with these cords. So > far I've run the cords over the beams. If anything looks too close (like > ribs) I re-route to avoid and use the clips to secure the wires from the > sides of the beams. > > Wouldn't unisons going out be more of a rendering issue? Perhaps not if it > was dry. You will enjoy the stability that comes when this system is kept > running. > > Good luck, > Andrew > > > At 08:17 PM 10/11/2004 -0400, you wrote: > >Hi, > > > >I did my first dampp-chaser installation on Sat. I noticed today that the > >piano's unisons were more off-tune compared to Sat. than they were on Sat. > >compared to when I tuned it 1-1/2 months ago. Looks like it's doing > >something :) > > > >In any case, I was a bit uncertain about something. The instructions said > >to do an under-the-beams installation if there wasn't enough clearance for > >the humidifier baffle. But it didn't say what enough clearance was, so I > >presumed this meant "if it doesn't fit". There is between 1/4"-1/8" > >clearance above the baffle. Is this enough? > > > >I was also curious if anyone was willing to post a picture of their > >techniques to hide the extra cords. > > > >Thanks. > > > >- John Silva, P.T. sans R > > > >_______________________________________________ > >pianotech list info: https://www.moypiano.com/resources/#archives > > _______________________________________________ > pianotech list info: https://www.moypiano.com/resources/#archives </BLOCKQUOTE></body></html>