Instructive Little Puzzler

[Paul McCloud]

Hi, Alan:
	I'll bet it has the backcheck wire that doesn't have the
traditional triangular bend in the end of it.  It only has a few bends,
like a snake, but is essentially straight.  The bridle tapes slide down
the wire, and the note sticks.  You put the glue on the wire/tape ends
to prevent it from sliding down.  
	Am I close?
	
	Paul McCloud
	San Diego

-----Original Message-----
From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On
Behalf Of Sid Blum
Sent: Saturday, August 25, 2007 12:20 PM
To: tune4u at earthlink.net; Pianotech List
Subject: Re: Instructive Little Puzzler

Backcheck leather unglued?

>Problem:  Acrosonic with a key that just occasionally sticks after a 
>hardish blow. And when it sticks, it really sticks.
>
>Diagnostics:  Keystick NOT sticking. NO foreign objects or parts 
>interference. Jack and jack spring working just swell, thank you. 
>NOT a pinning problem with any flange. Damper working correctly, 
>spoon NOT corroded and NOT digging into the felt. Hammer and butt in 
>good condition and traveling correctly. Lost motion, letoff, and 
>aftertouch (on a spinet?) nicely regulated, after some adjustments 
>by yours truly.
>
>Hint: Had to remove the @*&#$% action and practically use my xray 
>vision to spot the problem. Actual fix took about 15 seconds and 
>required a tiny drop of PVC-E glue.
>
>Alan Barnard
>Salem, MO


-- 
Sid Blum
sid at sover.net