***Re: Nine foot something - quickie hammer centre check

[John Ross]

The black stuff is probably the plating off the pin.
Regards,
John M. Ross
Windsor, Nova Scotia, Canada
jrpiano@win.eastlink.ca
----- Original Message ----- 
From: "Richard Brekne" <Richard.Brekne@grieg.uib.no>
To: "Pianotech" <pianotech@ptg.org>
Sent: Wednesday, March 10, 2004 1:13 PM
Subject: Re: ***Re: Nine foot something - quickie hammer centre check


> Keith Roberts wrote:
> 
> > Thanks Michael, and you are right, mind yourself, I'm back. Pianos 
> > only please.
> > The pinning was a no brainer, it was all bad. I did it in three hours 
> > last night. What is that black stuff? The pin isn't corroded.
> > I go with a four gram flange friction target. Is there any advantage 
> > to having the friction of the flange change with the weight of the 
> > hammer? Maybe in the bass it should be a little tighter, more stress.
> > Keith Roberts
> 
> 
> Black stuff in centerpin bushings ??? sounds like your typical graphite 
> to me.
> 
> RicB
> _______________________________________________
> pianotech list info: https://www.moypiano.com/resources/#archives
>