renner blues baby

Jon Page jonpage@mediaone.net
Mon Mar 26 18:07 MST 2001


At 03:43 PM 03/26/2001 -0500, you wrote:
>hello folks... wondering if I might pop in a question here and see what
>happens.
>
>  I am regulating a Steinway B that has replacement Renner parts. My question
>is:
>On the top of the rep lever, there is a slight indentation behind the jack..
>marked in the graphited area. A line of some sort....
>Now maybe it's me and eating right before I go to bed, but I SEEM to
>remember on other sets that I've seen that that line is kinda near where the
>jack ends up when properly regulated under the knuckle. Is this true??  I am
>having issues with this action because the jack is ending up way too close
>to the end of the rep window after travel, and this ain't cool. Could these
>replacement parts be the wrong ones, and the knuckles be too far forward???
>Hmmmm..
>
>:) cheers!! Thanx much!!
>michelle
>
>stranges@oswego.edu

Michelle,
If the jack is being buried into the stop felt at the end of the lever
you have one or more contributing offenders:
Key dip too deep
Hammer bore long
Hammer blow too short
Knuckle too close to the center pin
Capstan too far back on the key

On a S&S B, I would suspect key ratio (capstan placement).  There is one here
which has the jack jamming into the stop felt and blocking the key about 
1/16" above
the punching (talk about springy). This piano needs a shallow dip and long 
hammer blow.
The capstan would have to move more than 1/4" forwards to have this action 
regulate
properly which would entail moving the wippen heel. The customer wishes to 
live with it the way it is.

Unless you are prepared to remanufacture the action, fudge on the settings 
for dip, hammer blow
and maybe a little extra letoff.

Good Luck,

Jon Page,   piano technician
Harwich Port, Cape Cod, Mass.
mailto:jonpage@mediaone.net
http://www.stanwoodpiano.com
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