The motor governor in a Baldwin is a tricky little devil.  Here are a
few things to watch out for.

If these things get just a tiny bit of dirt in them, it will slow the
motor down.  The first inclination is to readjust the threaded rod.
Don't!  It will throw the slow speed off, and the governor will be
unstable at the slow to mid range.

Check the slide surface for warpage, dirt, and anywhere it could leak.
It is especially important to re-install the spring in _exactly_ the
same spot where it was originally.  I think that the original service
manual called for using gram weights to find the correct position for
the spring.

I'm sure to get disagreements here, but I say never mess with the group
of speed-regulating screws.  I did that once, and it took forever to
get it back to where it would function properly.  According to Art
Reblitz, these are used as a group to regulate the motor speed
throughout the entire playing range.  If you must remove them to clean
out dirt, keep them in order, and count the number of turns.

The point is, the unit functioned properly when it was new, and Baldwin
was very meticulous in regulating their players.  This is evidenced by
the fact that you can get many old Baldwins playing fairly well simply
by retubing and recovering the wind motor.  Of course, they won't work
as well as when you do a complete rebuild; but the old Baldwins are far
more forgiving than most other players, which won't fire a note unless
completely rebuilt.

The first player I ever rebuilt was a Baldwin Monarch that had been
traded in to a piano dealer for one of those God-awful modern Kimball
spinet players!  I bought the piano very cheaply.  Just to think, the
owner traded in a fine instrument for a collection of junk, _and_ also
paid extra for it!

Not knowing any better at the time (I was 16) and armed with Larry
Givens’ book, plastic keytops, cork bridle straps, and Elmer's glue
(oops!), I recovered the pneumatics and motor with Schulz pouch cloth!

Remember those first players that we hope will never surface with our
name inside?

Never met a Baldwin Player I didn't like.

Andy Taylor

  [ I hope I did the right thing in changing Andy’s spelling of the pouch
  [ cloth to "Schulz."  Googling the name to find the correct spelling is
  [ fruitless.  Even the MMD Archives has four spellings: Schultz, Shultz,
  [ Schulz, and Shulz.  PPCo uses Schulz, so I went with that.  What say
  [ you player piano experts?
  [ --Relief Editor.