Chickenring Piano Malfunction

[Roger Jolly]

Greetings Sir,
                     From your description it sounds as if you have tight
action centre pins.
If you can remove a hammer butt assembly,  you can check to see if you have
4 to 5 swings. If not the best solution is to shrink the bushings with 50%
alcohol and water.
This should only be done by a skilled technician, who will be able to
confirm the cause of the problem.
Too much friction in the key bushing will also cause a similar fault.
With out seeing the piano, it is difficult to give much more advice.
Get a second opinion from another technician. Preferably some one with some
rebuilding or major repair experience.
DO NOT use oil on a piano.
Regards Roger


At 09:54 AM 11/10/00 -0400, you wrote:
>
>	Hello Gentle people ,
>
>	I read a your messages posted by you in piano-tech.com.
>Congratulations for you all, I think you are taking advance of your
>knowledge, but I'm unskilled on this.
>
>	Kindly I beg you (some of you) to advise me some things if possible,
>I got a Piano (Chickering Studio) and the mechanism is so strong but hard to
>drive as well. When the environment is cold (i.e. Winter) the mechanism
>doesn't work properly, the hammers go complete the way but they don't back
>as well, and bad sound is emitted as result. My technician told me that I
>need to warm the mechanism for proper working; but I cannot imagine doing
>this each time I need to play my piano. Please advise me if it is necessary
>to oil the mechanism for proper working or I need to bend or weight the
>hammers, or what. Obviously I need the easier way to fix the problem cause I
>don't have much experience in fixing pianos.
>
>	I really appreciate your help in advance. Greetings from Mexico.
>
>	Alejandro Zamora
>Quality & Reliability Engineer
>ASTEC Advanced Power Systems
>011-528-1566112
>mailto: alejandro.zamora@astecaps.com
> 
Roger Jolly
Saskatoon, Canada.
306-665-0213
Fax 652-0505