[CAUT] Schwander balancier pinning

[Jim Busby]

Hi Debbie,

Too loose, for sure. I've gone up ½ size as a fix for walking pins and obviously loose pins, but what I'm looking for is a way to measure friction there. Baldassin suggested there may be an efficient way to measure friction if we could determine what the spring is actually doing and subtract the difference. He wasn't sure how to do that. It just isn't common.

Richard Davenport did a class which showed how important pinning in the balancier is. He recommended 8 grams there, which was much more than is usually taught. In the class he showed how it affected the regulation to have this "right". There are a lot more than Baldwin that use this system. I think a few European makes do. It seems important enough, just a pain.

Thanks,
Jim Busby BYU

________________________________
From: caut-bounces at ptg.org [mailto:caut-bounces at ptg.org] On Behalf Of DCyr141833 at aol.com
Sent: Tuesday, March 04, 2008 5:12 PM
To: caut at ptg.org
Subject: Re: [CAUT] Schwander balancier pinning

Jim-
You didn't say if your rep lev was too tight or too loose - I'm going to suspect too loose as Baldwins have been notorious to be - as in zero friction and seriously floating rep levers.  I've repinned quite a few, and don't remember having a difficult time doing it - I just measure the pin, go up 1 full size, and take it from there.  And if you've got the odd Baldwin with a tight rep lev, I'd protek it, as Ed suggested.
Debbie Cyr

In a message dated 3/4/2008 5:41:17 P.M. Eastern Standard Time, jim_busby at byu.edu writes:
Any takers??? Please? Ed? Hello? Is this thing on? (G)

Jim Busby

________________________________
From: caut-bounces at ptg.org [mailto:caut-bounces at ptg.org] On Behalf Of Jim Busby
Sent: Monday, March 03, 2008 4:25 PM
To: College and University Technicians
Subject: [CAUT] Schwander balancier pinning


List,

How does one go about repinning the balancier in the Schwander (sp? On a Baldwin SD10) type Wippen? You can't eliminate the spring w/o removing it (unpinning). How do you measure gram weight?

If proper pinning in the balancier is important, and I think it is, then my Baldwins here need it. Right?

Thanks,
Jim Busby BYU


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