sluggish upright jack

[MBailey911@AOL.COM]

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Probably not the case if it's an entire section of hammers - but another 
thing that sometimes happens (& can be difficult to detect) is if the jack 
flange has broken loose where it attaches to the wippen. Sometimes the glue 
joint fails, but the flange hasn't fallen off the wippen yet.  Once it really 
disengages it's easy to spot, but prior to that time makes for tough 
detective work.

I'd try the Proteck CLP - it's amazing stuff.

Mary Bailey 

----- Original Message ----- 
From: <A HREF="mailto:eliotlee1@home.com">Eliot Lee</A> 
To: <A HREF="mailto:pianotech@ptg.org">pianotech@ptg.org</A> 
Sent: Thursday, June 14, 2001 1:08 AM
Subject: sluggish upright jack


Hello,

    I had an old upright piano (Ludwig) with very sluggish jacks affecting
repetition particularly in the high trebel.  Could this be from the coiled
jack spring?  I lowered the capstan and eased the keys still didn't help
much.  I noticed that there were no leads in the keys.

    Is this a sign that the wippen or the jack should be repinned?  What
about treating with protek?

Thanks for the help.

Eliot Lee
 


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