Erard Action Diagram...again! Sorry if it's a repeat

Kerry Cooper brispiano@optushome.com.au
Sun, 20 Feb 2005 20:58:24 +1000


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Dave,

 

This action regulates just like any other hertz action. I have rebuilt two
of these, with the last one being  last year. 

 

You use the same sequence as any other grand, however the adjustments are
sometimes in a different place. The best way is to level the keys and get
your depth of touch, without the action attached to the keyboard, and then
proceed from there. You will have to do some fine adjustments to key level
and key depth with the action fully assembled, but it is easier to start
without the action on. Do you have a grand action regulating jig where you
can do all your bold adjustments on the bench? This leaves you with once
again only the fine adjustments to make in the piano.

 

It is important that the leather in the fork of the shank is in good
condition, as this is where the hammer catching is done, some times people
have used the hammer head as the catching surface. Do adjust the catcher so
as not to catch on the head!

 

If you want blow by blow procedures, do contact me and I can send it to you.

 

This action can be regulated to play as well as the best modern action,
however this would need all felt and action centres in top condition.

 

Cheers

 

Kerry Cooper

Piano Technician

Accredited Member: APTTA, PTTGQ

HYPERLINK "mailto:brispiano@optushome.com.au"brispiano@optushome.com.au

 

   _____  

From: Piannaman@aol.com [mailto:Piannaman@aol.com] 
Sent: Sunday, 20 February 2005 1:36 PM
To: pianotech@ptg.org
Subject: Erard Action Diagram...again! Sorry if it's a repeat

 

 Hi all,

 

Sorry if this is a rerun.  Didn't seem to go through the first time!



 

I dug out a diagram of the Erard action that I'm trying to get a handle on.
Any suggestions on regulation of this would be welcomed!  Quentin and Pierre
have been most helpful.

 

I don't know if the 1821 on the diagram is the year this action was patented
or not.  I can only assume that it is. 

 

Curious animal, that's for sure.

 

Dave Stahl


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