[pianotech] FW: [SFPTG] Kranich & Bach Grand Action removal. Please forward

G Cousins cousins_gerry at msn.com
Tue Nov 24 05:06:24 MST 2009


I Concur with the possibility of having rail adjusting screws from the bottom but this might be too old of a piano.
A possibility is that the leg screws might have been switched around and longer ones used in the wrong places.
Longer screws will drive up into the action and lock it in place from underneath.
Look to see if the legs have 4 screws (the 2 innermost ones on each leg might be the culprets) and or the Lyre as previously mentioned by Kieth.

Another possibility is the action is held in place with several screws in the front rail just beneath the keys. You mentioned that the hammers rise with using the pedal rather than shifting (una corda)
My guess is the screws in the front rail. There would be a slight notch where the 4 or 5 screws go into the front rail. You'll have to raise up the key to get at these screws. 
Search and diagnose carefully you'll figure it out.
Gerry Cousins,RPT 
West Chester University of PA

Date: Mon, 23 Nov 2009 19:22:16 -0800
From: keithspiano at gmail.com
To: ilvey at sbcglobal.net; caut at ptg.org
Subject: Re: [CAUT] FW: [SFPTG] Kranich & Bach Grand Action removal. Please	forward

I think the four bolts with slotted nuts are usually a key dip adjustment and they are under the front rail?
 
Take the lyre off and see if the action comes out then.
Keith Roberts


On Mon, Nov 23, 2009 at 5:12 PM, David Ilvedson <ilvey at sbcglobal.net> wrote:

If someone has any help for a fellow technican...?

----- This is a forwarded message ----------------------------------------

From: "Frank French" <bucktownbuck at gmail.com>
To: tpa2sfr at pacbell.net; sfptg at yahoogroups.com

Received: 11/23/2009 3:33:44 PM
Subject: [SFPTG] Kranich & Bach Grand Action removal. Please forward


How does one remove the action from a Kranich & Bach Grand?  This piano, at
least 100 years old, does not have the shifting action, but rather the

vertical-type soft pedal that moves the hammer rail up closer to the
strings.  It does not slide out when removing cheeks , fall board and key
slip.  The action appears to be attached to the key bed.  There are no

visible screwsapparent screws at the front rail either beneath the keys or
at the right and left of the action.

Looking up at the bottom of the key bed from the floor there are four bolts
with slotted nuts  embedded in the keybed underneath.  Are these what hold

the action in?  If so, it appears that  a special tool is needed to turn the
nuts out.

Anyone seen this before?  Any idea how to remove the action?

Frank French


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