Piano Servicing, Tuning, and Rebuilding: For the Professional, the Student, and the Hobbyist by Arthur Reblitz, is the standard text I recommend for basic repair and regulation.

It is an excellent book that explains many repair and regulation procedures.

This FREE PDF outlines the upright piano and grand piano regulation steps in the Reblitz book and explains regulation steps in greater detail, adding extra information that makes the steps much easier to understand.

• Find out which steps usually don't need to be done if they've been done already.
• Find out which steps could cause more problems if done, so are recommended not to do unless you are doing a complete rebuild.