[pianotech] too tight repetition spring screws

[tnrwim at aol.com]

I've been working on a 70's model BB Mason & Hamlin for a school, nearly finished when I start trying to adjust the spring tension of the repetition lever.  Everyone is stiff, nearly half are so stiff as to be unadjustable, to the point of stripping out the head of the screw.  I've tried multiple flathead screw sizes and nothing seems to work.  Is there a lubricant anyone would recommend?  Other suggestions?
 
Bruce Pennington



Bruce

Instead of trying to turn the screw, adjust the spring. I presume these are Aeolian wipps, with the spring attached to a cloth loop. You can disengage the spring loop, and bend the spring up or down. 

Wim





-----Original Message-----
From: bppiano at aol.com
To: pianotech at ptg.org
Sent: Wed, May 12, 2010 4:18 am
Subject: [pianotech] too tight repetition spring screws


I've been working on a 70's model BB Mason & Hamlin for a school, nearly finished when I start trying to adjust the spring tension of the repetition lever.  Everyone is stiff, nearly half are so stiff as to be unadjustable, to the point of stripping out the head of the screw.  I've tried multiple flathead screw sizes and nothing seems to work.  Is there a lubricant anyone would recommend?  Other suggestions?
 
Bruce Pennington





-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://ptg.org/pipermail/pianotech.php/attachments/20100512/61b788b6/attachment.htm>