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#1878496 - 04/12/12 09:49 PM Bluthner , grand action regulation
cordoba Offline
Junior Member

Registered: 04/06/12
Posts: 11
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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#1878505 - 04/12/12 10:13 PM Re: Bluthner , grand action regulation [Re: cordoba]
Dave B Offline
2000 Post Club Member

Registered: 08/01/11
Posts: 2116
Loc: Philadelphia area
I don't understand?????

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#1878511 - 04/12/12 10:22 PM Re: Bluthner , grand action regulation [Re: cordoba]
Supply Offline
3000 Post Club Member

Registered: 09/11/06
Posts: 3919
Loc: Vancouver Island, BC, Canada
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?
_________________________
Jurgen Goering
Piano Forte Supply
www.pianofortesupply.com

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#1878552 - 04/12/12 11:15 PM Re: Bluthner , grand action regulation [Re: cordoba]
Dave Stahl Offline
1000 Post Club Member

Registered: 05/06/07
Posts: 1645
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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#1879200 - 04/13/12 09:05 PM Re: Bluthner , grand action regulation [Re: Supply]
cordoba Offline
Junior Member

Registered: 04/06/12
Posts: 11
A lot of thanks !!!millions of thanks. I am in Córdoba Argentina. Andres De Raedemaeker

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#1879201 - 04/13/12 09:07 PM Re: Bluthner , grand action regulation [Re: Dave Stahl]
cordoba Offline
Junior Member

Registered: 04/06/12
Posts: 11
Thank you Dave! At your service in the future.Andres De Raedemaeker

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#1879628 - 04/14/12 03:47 PM Re: Bluthner , grand action regulation [Re: cordoba]
David-G Offline
1000 Post Club Member

Registered: 01/17/06
Posts: 1251
Loc: London
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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#1879996 - 04/15/12 12:33 PM Re: Bluthner , grand action regulation [Re: David-G]
cordoba Offline
Junior Member

Registered: 04/06/12
Posts: 11
Yes. I have seen. Thank you!!!

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