Hi Terry, I was thinking hammer flange swing test. I see she is speaking of a jack flange now. I don't know the number of swings as I use a gauge. At 06:08 AM 18/12/2004 -0500, you wrote: > Now I haven't tried this, so I may well be speaking out of ignorance, >but I have a reasonable concept of how much flange friction there will be >with 3-4 grams of resistance. A jack weighs almost nothing. Seems to me if >the jack needs to swing freely 7 full swing cycles, that would require >almost no friction in the center. Three to five grams friction in an >action center with a shank and hammer hanging from it will swing maybe >three full cycles - and that has tons more momentum. Seems like something >may not be right here??? Terry Farrell > > Hi Julia, >> >> You can't bake a cake without a pan. Get a gauge--get the best one you can >> afford. There is a swing test as well. There are two ways to count the >> swings. 7 full cycles or 13 back and forth. Good luck. >> >> Regards, >> Don Rose > Check the jack center pins to 3-4 grams of friction and >for firmness Regards, Don Rose, B.Mus., A.M.U.S., A.MUS., R.P.T. Non calor sed umor est qui nobis incommodat mailto:pianotuna@accesscomm.ca http://us.geocities.com/drpt1948/ 3004 Grant Rd. REGINA, SK, S4S 5G7 306-352-3620 or 1-888-29t-uner
This PTG archive page provided courtesy of Moy Piano Service, LLC