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Rob111 Offline OP
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These little pins in the back of the hammer flange:

[Linked Image]

in my August Forster they are present, but they dont seem to be there in all
grand piano actions. Why are they in there? They don't completely fixate the
alignment of the hammer, and also they make adjusting the alignment
using an alignment tool kind of difficult. So what are they for? I'm kind of inclined
to just pull them out....

thnx!

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Hopefully some expert comes in but I have to ask!

How’s the Schiedmayer??

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Rob111 Offline OP
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Originally Posted by probably blue
Hopefully some expert comes in but I have to ask!
How’s the Schiedmayer??

grin Well it's doing great, but I want to tackle this one first. The A.F. I got only recently, and it is at my home. Yes, I now have 2 grand pianos! The Schiedmayer is in my studio/shop, so it'll have to wait...

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The function of the pin is to reduce/ eliminate serious mis-alignment of the hammer when the flange dries out in the winter montgs and gets loose. The pin simply keeps things reasonably close until someone comes along and tightens the flange screws.

As to why not all actions with these flanges have the pins...it's probably because it just happened that whoever designed the action chose this configuration for a different reason but figured that the screws should get tightened and hammers aligned every time the piano is tuned, therefore why spend the money to install pins?

Peter Grey Piano Doctor


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Rob111 Offline OP
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Originally Posted by P W Grey
As to why not all actions with these flanges have the pins...it's probably because it just happened that whoever designed the action chose this configuration for a different reason but figured that the screws should get tightened and hammers aligned every time the piano is tuned, therefore why spend the money to install pins?
Peter Grey Piano Doctor

Aha thnx, yes so a design choice.. I pulled them out! grin They were in the wood very superficially so easy to pull out and if necessary put back in again. Aligning the hammers in this new configuration was much easier. Let's see how it goes in the coming months...


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