replacing a back action on a 1909 Steinway B

[Jude Reveley/Absolute Piano]

Other clearance issues could be the tray rubbing against the bellyrail (the 
A and O) or the dags or the wires rubbing against the damper stop rail. You 
should also consider the ideal geometry. All of these issues are avoidable 
or solvable. Try modelling your backaction outside of the action cavity 
prior to committing yourself to the pivot location. (see Tim Dixon's article 
in the Journal). Renner and Tokiwa are both fine kits. Steinway's will also 
work when they fit but don't count on that.

Best,

Jude Reveley, RPT
Absolute Piano Restoration, LLC
Lowell, Massachusetts
(978) 323-4545

----- Original Message ----- 
From: "Fenton Murray" <fmurray at cruzio.com>
To: "Pianotech List" <pianotech at ptg.org>
Sent: Saturday, May 10, 2008 11:47 AM
Subject: Re: replacing a back action on a 1909 Steinway B


> Ed,
> I'm looking at this in my mind's eye, but, the only clearance problem I 
> can think of would ultimately be the sos. blade interfering with back 
> checks. Do I have that right? That could certainly be solved with a 
> smaller back check, or ones that were scalloped on the back side.
> Fenton
> ----- Original Message ----- 
> From: <A440A at aol.com>
> To: <pianotech at ptg.org>
> Sent: Friday, May 09, 2008 12:13 PM
> Subject: Re: replacing a back action on a 1909 Steinway B
>
>
>> Greetings,
>> << Any recommendations , preferences or experience, whether to use the 
>> Renner
>> new back action OR Steinway catologue # 006267 ''Underlevers mounted to
>> Frame'' for the continued restoration of a 1909 Steinway  >>
>>
>> Measure your clearance for the sostenuto tabs. It is very possible that 
>> the
>> factory part will NOT fit in the space provided.  The Renner kit has the 
>> same
>> problem, however, the Tokiwa has the original size sos. tab.
>> Good luck,
>>
>>
>>
>> Ed Foote RPT
>> http://www.uk-piano.org/edfoote/index.html
>> www.uk-piano.org/edfoote/well_tempered_piano.html
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>
>
>