Roger action Geometry

[Jon Page]

At 10:37 PM 08/24/2000 +0200, you wrote:


>Roger Jolly wrote:
>
> > Hi Richard,
> >                 Just serviced a D.H. Baldwin with similar problems that you
> > encountered.
> >
>
>Hi Roger... thanks for the info... I was wondering if this piano had the
>problem with excessive action noise. In my case it was largely coming from the
>whippen blubbering on the capstan. I didnt get a chance to do anything
>permanant about it, but I checked with some temporary front weighting and
>easing of the assist springs, and that erased the problem.
>
>I imagine tho that there were some geometric problems with that as well...
>grin.. will get a chance to check it out again next year me thinks..
>
>I will start a Petrof grand next week at the University here. This ones going
>to be interesting.. Hammers been replaced and the bore lenght is wrong. I am
>pretty sure they are short, and I think I am going to find the spread is too
>tight. Drop screws are too high and grate against the sticker as you bring the
>action in and out. Rollers are really flat indicating jack is digging. Wouldnt

Bolster the knuckles and  the letoff, drop screws capstans will all need to 
be turned down,
same thing if you increase the spread  but I would bolster first.

Regards,
Jon Page,   piano technician
Harwich Port, Cape Cod, Mass.
mailto:jonpage@mediaone.net
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