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MMD > Archives > January 2010 > 2010.01.18 > 05Prev  Next


Rewind & Shut-off Problem in Ampico Grand Piano
By Eliyahu Shahar

[ Ref. "My Fischer Ampico Grand Piano" in 100117 MMDigest ]

Hi Bob,  How technically inclined are you?  If you can follow a
schematic, there is an excellent one available for the Ampico that
shows what is connected, where and how.  For the problems you listed
with rewind and shut-off you need to look at the tubing of the drawer.
The same control is used for repeat / shut off, so --

If you have the repeat switch to "On", does it miss the roll or does
it manage to return to play at the end of the playing?  If it gets to
the end of the roll and keeps on going in rewind, then I would say your
pneumatic lines are clogged.  If it does manage to repeat the roll with
no assistance, then your lines are clean but the valve for the turn-off
switch could be in need of attention (or the tubing from the "On" switch
could be clogged).

I just reread your post and saw the answer -- the line is bad.  Now
this is the good news (or the bad news): this tube is easier to get to
than most.  It's the tube that comes off of the take-up spool on the
left side.  Take the hose off the nipple and see how they work when you
open and close that tube.  Assuming that this identifies the source of
the problem, remove the take-up spool from the frame and clean out the
tube going through the center to the hole on it.  Give it a good blast
to make sure it now allows air to flow freely

Brass pins: fabricate from hobby shop-brass wire, right dimension,
cut to shape.

Making a belly cloth:

I found at ACE Hardware that you can buy snap fasteners that you
tap lock to build a belly cloth.  I made one out of black Naugahyde,
with these snaps holding it in place as was originally done.  A lot
of sewing to get it right, but not a hard project at all.

How did I make the pattern, though?  I started with the front edge as
it does not curve, measured the width of the piano, built a lovely hem
and placed the first snap in place.  From there, I did the rest of the
snaps for the one side, measuring and installing.  Next I marked the
bass side as it also is not curved, hemmed it up and sewed it, then
placed the snaps in place and put it up under the piano.

Next I marked the piano width, marked the hem with pins, trimmed the
far corner and placed its snap in place, then put the rest of the snaps
up, verified that I had done this right, then went to my sewing machine
and finished the hem.  It cut the noise down, but there wasn't much to
begin with.

Good luck!  If any questions, ask!

Eli Shahar


(Message sent Mon 18 Jan 2010, 13:32:55 GMT, from time zone GMT+0200.)

Key Words in Subject:  Ampico, Grand, Piano, Problem, Rewind, Shut-off

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