Roger action Geometry

Richard Brekne Richard.Brekne@grieg.uib.no
Thu, 24 Aug 2000 22:37:27 +0200



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
be a bit suprised to find this thing is really mucked up. I'll be taking a
bunch of Stanwood type measurements as well and posting them in case anyones
interested.

Hope all is well..

>
>
> This 3 different sizes of springs in this model.
> You will find the same problems in Samick pianos FWIW it may help you in
> Norway.
> Regards Roger
>
> Roger Jolly
> Saskatoon, Canada.
> 306-665-0213
> Fax 652-0505

--
Richard Brekne
RPT, N.P.T.F.
Bergen, Norway





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