I have a Model 28 KSR base with a bum keyboard.

The first page I have attached explains step-by-step

what happens when you press a key.

Mine is OK to where the Universal Bail latch moves

down. (Photo - bailside)

Then it fails because it does not release the Codebar

Bail latch. It moves it, but not enough. If I loosely

hold a piece of perforator tape between the Universal

Bail latch and the Codebar Bail latch. That tiny little bit

is all it needs and it works every time.

The Universal Bail latch is hitting a part the is not shown

in the drawing (Photo - bailback) It is a another bail that

lifts up the Universal Bail latch, once the clutch is tripped,

and resets everything to be ready for the next keystroke.

That bail is held against a fixed post and cannot allow

the Universal Bail latch to move that tiny bit lower.

I have tried playing with the eccentric at the back of

the  Universal Bail latch, it only made things worse.

I am at a loss on this keyboard. 

I would really appreciate any insight.

About a year ago I fixed a MKII keyboard.. I found a weak

spring and replaced from a Harbor Freight spring assortment.

It has been working well ever since.

Tom   N3CRK