Technicians don’t need to be action rebuilders to use touchweight measurements to their advantage. Measuring touchweight is a valuable diagnostic tool that can help you identify larger problems within an action, such as excessive friction or problematic geometry.

Bedding the keyframe entails adjusting the different glide bolts protruding from the bottom of the frame so that they all exert the same amount of pressure across the keybed, thus setting an even and consistently level foundation for the action.

This article teaches sostenuto theory and regulation.

This article explains hammer traveling, squaring, and aligning separately and proposes a method for each that will help clarify the process.