Correcto... this is an old trick and I have never really understood the reason it seems to come under such critical fire. If the only significant problem with a knuckle is the underfelt being overly compacted, this will pretty much restore a knuckle to its origional shape. Sometimes a quick brush up with some light grade sandpaper with the nap to remove any nominal groving from the jack. The proceedure is quick, easy, lasts a long time and heck... if you arent getting 17,000.00 zendoers for the job..... well it can make a big big difference. RicB Robert Goodale wrote: > Alan Meyer and I install a lot of PianoDisc systems, probably 40-50 a > year. Recently we got a Boston in for a system. It belongs to an > exclusive golf country club facility. The piano showed signs of heavy > use but was generally in good shape. With the player system installed > and adjusted we proceeded to play a disk with some fast hard playing > music that we use for testing and breaking in. In this particular case > the notes were repeating very badly and seemed sluggish. Other than > needing some modest hammer reshaping the action appeared to be in > reasonable regulation. > > I took a looksee at the knuckles and noticed they were pretty flat. We > decided to try and bolster them up by weaving yarn through the felt. > This of course isn't exactly a new concept but I hadn't personally > tried it. After this the regulation of the whole action had of course > changed so I ran through it and did a quickie regulation job. Amazing! > The action repeated fast as lightning and the player worked perfectly! > > The moral of the story: Jack be knuckle, Jack be quick! Yarn make jack > on let-off slip! > > Rob Goodale, RPT > Las Vegas, NV -- Richard Brekne RPT, N.P.T.F. Bergen, Norway mailto:rbrekne@broadpark.no http://home.broadpark.no/~rbrekne/ricmain.html
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