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MMD > Archives > December 2011 > 2011.12.24 > 04Prev  Next


Rebuilding a Player Piano Air Motor System
By Clinton Gray

[ Clinton Gray wrote in 111209 MMDigest:

> ... the piano's airmotor was a little hesitant to move the roll.
> When set at Tempo 130, the roll played at about Tempo 70-90, and
> would slow and then go quicker, etc.  How is that fixed?

Hello,  Some of you will remember me writing all about the
Warfield player piano I got for Christmas.  After some looking at
the system, I found that it is not a Standard Pneumatic action at
all, but a Pratt-Read action!  I wonder how I hadn't thought to
look under "Waltham" (the maker of the "Warfield" line of player
pianos) on John Tuttle's Player-Care web site.

 [ Visit http://www.player-care.com/makers.html  -- Robbie

I had been saying the my air motor was not working, but after
taking it apart and cleaning it, the air motor isn't the problem at
all.  The governor, when set to anything less than Tempo 90, does
not provide enough vacuum to move the airmotor valves.  I checked
all the hoses and everything is clog- and dust-free, but the
governor does not let enough vacuum to the air motor, so it does
not turn very much.

I am absolutely puzzled by this, and I wonder if maybe there is
something stuck behind the opening inside the governor where the
air is pulled through that is clogged.  Any help on this issue?

Clinton Gray
Hereford, Arizona


(Message sent Sun 25 Dec 2011, 00:57:27 GMT, from time zone GMT-0700.)

Key Words in Subject:  Air, Motor, Piano, Player, Rebuilding, System

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