pulley keys

[JCSwafford@AOL.COM]

---------------------- multipart/alternative attachment
In a message dated 9/4/02 3:09:10 PM Central Daylight Time, 
kpiano@goldrush.com writes:


> I'm trying to get an upright ready in a hurry for a cheap temporary rental. 
> The balance rail holes are ugly. 

I know this isn''t your way and I'm sure other technicians will respond to 
your specific method, but I'll tell you mine just in case you may find it 
beneficial at some other juncture or where materials, tools, parts and shop 
conditions aren't available to complete the job when needed or on time.

I use medium viscosity cyanoacrylate glue to form a membrane over the balance 
rail hole in the key. Then I shoot it with accelerator and quickly blow the 
membrane into the hole with my mouth before it dries. I'm careful not to blow 
too hard because it can easily reach the key button bushings and ruin them. 
When you do this you can build up the sides of the hole very evenly and fully 
if this process is repeated to the point where the hole is at the diameter of 
the balance rail pin. When at this point insert a round file the diameter of 
the balance rail pin and apply right and left side pressure to elongate the 
hole on the sides for easy maneuverability of the key. You can get the keys 
to be completely secure from front to back this way if you do it right. I 
judge the key functional when I drop it in and it falls easily to the front 
rail punching and doesn't have any front to back play.

---------------------- multipart/alternative attachment
An HTML attachment was scrubbed...
URL: https://www.moypiano.com/ptg/pianotech.php/attachments/52/0f/7a/ca/attachment.htm

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