"Sting" Player Piano Re-Roll

Terry Smythe smythe@MTS.Net
Thu, 16 May 1996 09:12:20 -0500 (CDT)


I cross-posted Daryl's appeal for help, regarding a Sting Player
Piano, over to the automatic-music mailing list, and by chance
someone responded with another possibility that might be
examined to solve this problem.

> From: Daryl Matthies <pianotec@hcsinc.com>
> Subject: player piano shut off

> I need help with a 20 year old Aeolian Sting player piano.

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Date: Wed, 15 May 96 12:23:13 UT
From: "Craig Brougher" <craig_brougher@msn.com>
To: "Automatic Music Mailing List" <rolls@foxtail.com>

Subject: Re: Aeolian Sting Repair

The motor shut off switch on a Sting is paralleled to the reroll
valve. When the reroll valve takes too long to operate, the motor
switch pneumatic closes, through a large bleed provided between the
two and shuts off the motor.  There are two ways to fix the problem.
You can put another bleed in the line and slow down the slaved switch
pneumatic, or you can make the reroll snappier (better).  That could
be something simple like sluggish linkage, poorly adjusted linkage, or
something loose in the linkage that slows things down.  Or it could be
a leaking or stiff (or both) reroll pneumatic.  It can also be the
reroll pneumatic mount, which is moving each time it goes into reroll,
and subtracting from the work done on the reroll linkage.  Good luck.

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Terry Smythe                       (204) 832-3982 (voice/fax)
55 Rowand Avenue                   smythe@mts.net
Winnipeg, MB, Canada  R3J 2N6      smythe@freenet.mb.ca
Home Page:   http://www.mts.net/~smythe



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