u/Dismal_Ad_1637

Hello, I am hoping someone may be able to point me in the right direction on how to solve an issue. I have a set of Majestic Timpani and all four of them are not working right. When I move the foot pedal the needle on the side dial barely moves and the pedal rebounds a lot in the toe down position. I've tried looking it up on YouTube and checked the foundation pitch, everything seems fine but I cannot figure out what to do or try next.

Any suggestions or guidance is greatly appreciated.