Bechstein grand

[Ajay Mistry]

Hi I have got a Bechstein grand for repairs whose
whippens are linked with wooden links to the keys
instead of capstans can any one help me as to how to
adjust the hammer blow for this action is there a
special screw driver for this purpose 
          Please do help
                          Thanks
                                       Ajay Mistry.

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Ajay Mistry

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