Weird ringing - HELP!!

[KeyKat88 at aol.com]

Greetings, 

         I am a newbie with a whopping 37 months in business. I have replaced 
damper felts and never worried about the tension in the damper springs. The 
ringing subsided in the old uprights that I have done, however, the ringing 
could have been less. I am doing a damper job right now for a lady and this time, 
I "massaged" the damper springs alittle to renew the tension, 
        Friday I am going to her place to put the action in and glue the 
dampers on the newly sanded blocks. I will see then the fruits (or not) of just 
bending those springs very sliiightly. I did it when I had the levers off and 
out while cleaning/sanding off the old felt in my shop.
         Actually, I asked the list here, that same question, about messaging 
the old springs, and I guess no one caught the question, because I got no 
response, so I figured I would just go ahead and re-tension them slightly, Here's 
why:  I was told at tuning school that you can slightly bend the spring rail 
(hammer) springs to re-juvinate the tension in uprights and also I was told 
you can do it to the repittiion springs in a grand. They basically work the by 
same principle as damper springs so I figured why not with the damper springs. 
We shall see, Friday.

       So, I really cant give a definite answer on re-tentioning. I am 
guessing. I also know there is a way to measure the tension, but I dont know what 
gage to use or how to use it. This is on my list of things to check out.

Julia Gottshall
Reading, PA 

In a message dated 7/25/2006 11:35:11 AM Eastern Standard Time, 
chief_retired at pacinfo.com writes:
Hi Julia,

Thanks for the comments. 

The pedal is ok. I have wondered about the damper spring tension. How do I 
check their tension and know if they are with in spec? Can I massage them to 
increase their tension like a grand repetition spring?

Thanks,

Terry Jack
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