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April 2004

2004.04.23

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Vacuum Leaks in a Player Piano
By Jim Cook

I thought I might suggest a solution I found some years ago to
a problem with a bellows pump in an old Kimball 88-note player.
I had recovered the pump bellows and it still leaked.

I finally determined that the original laminated wood used for
the base of the pump was porous.  I made a copy of the base from
cabinet grade plywood and then the pump would hold a vacuum for
several minutes.  Perhaps something to check?

Jim Cook

(Message sent Sat 24 Apr 2004, 03:25:32 GMT, from time zone GMT-0700.)

Key Words in Subject: Leaks, Piano, Player, Vacuum

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