Thanks all for the reply,
I took the box apart that was acting up......
It ended up being a hardened blob of "what probably once was grease" in the area where the function lever goes into the pawl.
It was solid and hard as a rock and it prevented the lever from dropping.
I literally carved it out of that recess with an exacto knife and some acetone.

On Sun, Oct 17, 2021 at 12:59 PM Russ Miller <wa3frp@gmail.com> wrote:
  1. Unshift on Space

 

 

The M28 handles unshift-on-space within the stunt box.

 

When a space is typed, it will pull a shift fork on the top part of the stunt box which, in turn, operates the bottom code bar and puts the M28 into lower case if it were in upper case.

About the middle of the top part of the stunt box at slot one is a bolt and locking nut.  If this bolt is run down into the top of the stunt box, it causes the front of the function pawl in slot one to tilt down, causing the rear part to rise.

The front in this case is the business end of the stunt box which faces into the
guts of the M28. The rear is toward the stripper blade.

If the function pawl is raised, it disables the downshift on space feature.

If your M28 is not unshifting on a space character, the bolt should be backed out to a point when this function is enabled.


GL 


Russ WA3FRP


On Sun, Oct 17, 2021 at 12:37 PM Joe Duszyński <joeduszynski1@gmail.com> wrote:
I have two stuntboxes one does unshift on space the other does not
They both appear to have all the same pawls/levers in the same slots on each unit.
So not really sure why one is doing the unshift on space when it has the same levers/pawls as the one that doesn't??
Any insights????



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