[pianotech] 'D' Type Spring & Loop Grand Action Regulation

Mark & Janine Davis pianofortetechnology at saol.com
Mon Nov 8 15:07:58 MST 2010


Hello Jack

 

Thank you for the response.  It is a Herrburger & Brooks action.  

I lubricated the hammerbutt leather, jack tops and key bed with dry TFL
spray, levelled the keys and pitch adjusted the piano this evening.  

 

Take care

Mark Davis

 

 

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