>I'd like to pull on your coats about something... > >I'm regulating an action from a Baldwin grand and have run into a rather odd >situation with the rep. spring. If I set the hop to a nice positive lift, >the hammer shank will fall when I trip the jack with my finger. If I set the >spring to support the shank after tripping the jack, the hop has a serious >kick. This condition is throughout the action. > >Any ideas?... The first idea that comes to my mind is the relationship of the jack tip to the window of the repetition lever is off. The knuckle is resting on the jack tip rather than the window of the repetition lever. The second idea that comes to mind is the relationship of the jack tip to the knuckle. The jack tip is set too far back of the wood core (towards the hammer). Keith McGavern Registered Piano Technician Oklahoma Chapter 731 Piano Technicians Guild USA
This PTG archive page provided courtesy of Moy Piano Service, LLC