> >I called Renner USA & while they have the springs, they have nothing >else and no instructions as to what else is needed to install >them. I guess it's a case of Renner USA vs Renner Germany. And >Tokiwa doesn't seem to make anything that will work. > >So I can't find any helper spr.ings to even try. I understand they >are a real pain to adjust, but since it's my piano, I can spend the >time to get the right. Hi Bob, Go to a hobby store and get some leather cord of the appropriate size. (they sell quite a variety) Then thread through the wee holes, and spring coil with no problem. Tip: Sharpen tip and wet the end with thin CA glue, this will make it easy to thread. You will also need to order a set of flanges with the loops. Remember the springs are in 3 different diameters, so don't mix them up. Wippen assist springs should only support 10 to 15gms of down weight. >Bob at Pianotek was helpful. He suggest adding 1/2 punching to the >key at the balance rail. My puncings are scarlet (.055). Not having >any, I used several layers of maksing tape to get up to about .033, >in the shape of a regular puncing, cut in two, and stuck them on >--facing the right way-- at the balance pin hole of the key. > >This indeed did lighten the feel of the piano, but it caused it to >be sluggish. Plus it raised the key height 1/16 and the back end, >nearly 3/8" (which makes since with the leverage as we calculated is >above that 6.2 to 1. Have you checked the balance rail hole height? If this is greater than 4mm for a spruce key, or 3.5mm on a key with maple shoes, this may be the cause of both the excess weight, and the sluggish action., I have measured 6 to 7mm on an Estonia. Pianotek sells a reamer to fix this problem. Do you feel you have to have a lot of after touch for ppp playing? Regards Roger -------------- next part -------------- An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/20081005/e817f993/attachment.html
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