Just a follow-up to this thread. We have a "Boesendorffer" Adjustable bench at the University, had it for a long time. The original post for this thread did not specify the problems that were being encountered but let me throw in this. Our bench does not have a major hose/tank malfunction but what does happen is that after the tank has been charged with 45-50# of air the bench will work well for a while, then, the seat will start to lower very slowly when someone is sitting on it. The rate of sag varys with the size of the person doing the sitting!! What I have found is that if I sit on the bench, lift the handle and let the seat go all the way to the bottom, repeat this several times, the bench will regain its adjustability and stability. Lasts for a good while....don't ask my why. Hope this makes some sense. Paul E. Dempsey, RPT Piano Technician Sr. Marshall University Huntington, WV 304-696-5418 304-617-1149
This PTG archive page provided courtesy of Moy Piano Service, LLC