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Joined: Apr 2012
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cordoba Offline OP
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Dear friends, I have a problem in this task.The jack not return to its position under the noise.(so the action remain unhooked).Must the hammershank to rest on the hammer rest rail? Must the abstract be supported by the jack or the repetition spring? Thank you. Regards

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I don't understand?????


"Imagine it in all its primatic colorings, its counterpart in our souls - our souls that are great pianos whose strings, of honey and of steel, the divisions of the rainbow set twanging, loosing on the air great novels of adventure!" - William Carlos Williams
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If I understand correctly, you are working on a Blüthner with a Patent Action.

In this action, the hammer shank rests on the rail and the jack needs a little bit of lost motion to slide back under the abstract. This is very similar to upright regulation.

The abstract is supported by the spring.


Are you in Mexico?


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Originally Posted by cordoba
Dear friends, I have a problem in this task.The jack not return to its position under the noise.(so the action remain unhooked).Must the hammershank to rest on the hammer rest rail? Must the abstract be supported by the jack or the repetition spring? Thank you. Regards


Yes, the shank must rest on the rail. I learned that one the hard way...


Promote Harmony in the Universe...Tune your piano!

Dave Stahl, RPT
Piano Technician's Guild
San Jose, CA
http://www.youtube.com/watch?v=JAniw3m7L2I
http://dstahlpiano.net
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cordoba Offline OP
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A lot of thanks !!!millions of thanks. I am in Córdoba Argentina. Andres De Raedemaeker

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cordoba Offline OP
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Thank you Dave! At your service in the future.Andres De Raedemaeker

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Andres, did you find the page on the Blüthner web site, where Blüthner publish Advice on how to produce a good touch with the Blüthner action in a Blüthner Grand. Please forgive my mentioning this if you have seen it already.

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cordoba Offline OP
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Yes. I have seen. Thank you!!!


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