[CAUT] Protek and Sluggish Dampers

[Roger Jolly]

---------------------- multipart/alternative attachment

Hi Fred,
                 Some Baldwin's had glue that was tooooooooo watered down 
and it wicked right through the bushing cloth.   The only real solution is 
to rebush the rail.

Regards Roger


At 10:58 AM 3/24/2005, you wrote:
>On 3/24/05 6:50 AM, "Becker, Lawrence (beckerlr)" <BECKERLR@UCMAIL.UC.EDU>
>wrote:
>
> > I removed the offending
> > dampers, ironed the bushings with a bridge pin in a rheostated 25-watt
> > heating iron, sprayed a little TFL-50 on the bushings, and polished the
> > damper wires with 4/0 steel wool.
>
>     I use an umbrella tool for the same purpose: heat it with a lighter or
>match before inserting between wire and bushing. The umbrella tool should be
>tapered to knife edge thin, and from U shaped to a point (ground down with
>wheel or file or whatever from both sides) to make it a usable tool, and not
>just a guide bushing remover <g>. But heating it allows it to iron and size
>the felt without removing the damper wire.
>     I, too, have had mysterious problems with seizing dampers in Baldwin
>grands, especially my personal one. Never figured out why. Very
>unpredictable. Some day I'll bite the bullet and re-bush the guide rail. I
>think there was some strange residue in some of the bushing felt Baldwin
>used over a period of time. Same kind of seizing seemed to show up elsewhere
>- particularly in trapwork bushings. That was a chronic problem with loan
>program Baldwin grands I faced in the early 90's. I never found a cure other
>than felt replacement. No lubrication seemed to work permanently. Kind of
>like those Asian flange bushings (though I never found flange bushing
>problems of that sort in Baldwins).
>Regards,
>Fred Sturm
>University of New Mexico
>
>_______________________________________________
>caut list info: https://www.moypiano.com/resources/#archives

---------------------- multipart/alternative attachment
An HTML attachment was scrubbed...
URL: https://www.moypiano.com/ptg/caut.php/attachments/92/66/2c/36/attachment.htm

---------------------- multipart/alternative attachment--