34) The Drop (continued) Regulation of the drop screw was defined in the last post as being the adjustment for regulating the point of...

34) The Drop The modern grand action compared to the old type of action that was used for instance in the square grands show one great...

33) Let-off (continued) For those technicians who find it difficult to set the let-off in the piano by watching the space between the top...

33) Let-off (continued) Previously discussed were the regulation steps that affect the point of let-off, namely the jack alignment to the...

32) The Blow (continued) To wind up the discussion on blow, I want to describe some different methods that I know of to measure the...

We left off talking about the two factors that create the striking point for a hammer. Assuming that the hammer glue joint is 90 degrees...

32) The Blow Step no12 was adjusting the key height and leveling all 88 keys. Last month we discussed step no31, regulating the jack...

I pointed out in the past that we really do not set the jack height, as the jack is not variable in its height. Rather, we set the height...

Whenever the subject of grand action regulating comes up, the thoughts always turn to benches, key levelers, and let-off racks. As others...

In part VII of the series on grand regulation we discussed the two methods of regulation for grands, the Dip and Blow Priority. Now that...

Last discussed in the 50-point guide to grand regulation were the two main methods to regulate. One is called the Blow Priority method,...

Section III. Alignments 29) Align jack to knuckle core In order for the power to be transmitted from the whippen to the hammershank...

Section III. Alignments 27) Align hammers to strings To facilitate this alignment procedure, install the action into the piano andmake a...

II. THE TOP ACTION (off the keyframe) - continued 22) Clean repetition spring and groove (Steinway, Yamaha, Bosendorfer). On Steinway,...

In this third part of our grand regulation guide, we will continue with discussing the Section II, The Top Action. Remember that action...

Having discussed section I, The Keys & Keyframe, last week, we will continue with section II, The Top Action. Note that those procedures...

In the last post, we discussed a 50-point checklist to be used in regulating grands. Last month we printed a grand regulation chart which...

Last week we talked about a 50-point checklist and knowing what changes are taking place during action regulation. A three-question quiz...

QUIZ 1) Does regulating the jack height to the balancier affect the strength of the repetition spring? 2) Does regulating the let-off...