Sometimes Protek CLP will free the jack centers up enough that nothing further is needed. Since that is simple and cheap, try that first. I have a lot of success with CLP, but in some cases the bushings are just too tight, so I need to disassemble, ream, and repin. Clyde Hollinger Terry Beckingham wrote: > > Hi list, > > I tuned a very small Collard and Collard console today. The keys angle down > at the back to go under the wippens. It's not a spinet, but is almost that > small. There are a couple of problems with it. > > First the owner had a leak in the roof which allowed water to drip down onto > the upper two octaves of keys. There was sufficient water to cause the front > rail bushings to become unglued and to drop out of the bottom of the keys > and rest on the front rail punchings. No water reached the action. I will be > rebushing the front rail after Christmas. > > The second problem is that in the same area of the piano, the jacks are not > returning under the hammer butts. The keys are free not binding. The > whippen/butt on most of them will drop by itself if lifted without the key. > The capstans are smooth and shiny, not corrosion. The jack springs are not > broken and do not appear to be weak. There is a little lost motion so the > jacks are not catching on the butt leather. I am wondering if the center pin > bushings are swollen just enough to keep the jack from going back under. If > this is so, do you suppose using protek on the center pin bushings would > alleviate the problem, or will I have to ream the bushings? The piano is not > worth spending a lot of money on. > > Any advice would be appreciated. I am supposed to go back on Tuesday to try > to remedy the problem. > > Thanks > > Terry Beckingham > PTG Associate Member > e-mail: beckingt@mbnet.mb.ca
This PTG archive page provided courtesy of Moy Piano Service, LLC