<html> Do you have wippen helper springs in that action?  To remove weight from the hammers, use the end of a belt sander and remove material from the sides about an inch and a half down from the crown.  That will give you a sort of hour-glass figure to the hammers if you were to look at them from the front or back.  Don't go by the up and down weights alone after you do this.  Make sure that the balance weight (upweight plus downweight divided by two) stays consistently between 35 and 37. At 11:36 PM 3/3/99 -0500, you wrote: <blockquote type=cite cite>Another way you may want to try is to lighten the hammers.  Are you a good hammer filer?  I've done this on several occasions and it works!  There's a lot of felt on most of the hammers you can buy today.  I think most of the sets I've ordered, regardless where they were from, were larger than they needed to be.  One thing you'll have in your favor is the way the action geometry will affect how much felt you'll need to remove.  If the hammer travels 1 7/8 in, while the key travels 3/8 in., that's a ratio of 5 to 1.  If you remove aprox. 2 oz. of weight from the hammer, you'll remove aprox. 10 oz. of touchweight.  Depending upon how well the action is weighted now, and upon how even you file those hammers, you may need to do some work with the key weights to even out the touchweight. Rogerio Cunha wrote: <blockquote type=cite cite> To the listI am just working on a grand ( Bösendorfer ) and on it I applied new hammers ( original ) , new center pins, and others items as knuckles, etc, etc,All the material applied is original and all the work was made with care and the final product was very, very good except the touch weight.I did all that I learned and read but wasn't possible to obtain 52 g on the 1st section, 50 g on the 2nd section and 48 g on the 3rd and 4th section and this is the problem that I want to know. ( these are manufacturer measurements)The difference is about +10 g on each section.What to do?I think that the only way would be to put leads on the keys. Is this correct?To use the piano with + 10g of touch weight is good?If isn't possible to obtain the manufacturer measurements what are the good touch weight?I thanks to allROGERIO CUNHA - IC MEMBER OF THE GUILD </blockquote>  </blockquote> Vince <<a href="mailto:vince@byu.edu"= eudora="autourl">mailto:vince@byu.edu</a>> Visit the web page for the Pacific Northwest Conference at: <<a href="http://www.pnwpianoconf.com/" eudora="autourl">www.pnwpiano= conf.com</a>> </html>