BORK Unisaw Riving Knife Bork - Fix or Replace

[badwhiskey]

For many years I have had a BORK aftermarket riving knife on my 1940's Delta Unisaw.  I went to use the saw today, and the BORK was slipped so far out of position that the saw couldn't function.  I took everything apart and can't see how the BORK was ever in the correct position!  I can't seem to adjust or reinstall it correctly.  Does anyone have instructions for one the installation of one of these?  I can't see how to make it work.

If I can't get it fixed, what is a good aftermarket replacement?  I really liked how this one slipped out of the way when not in use.  I don't want a big overarm system.  Thoughts?

Thanks.

[Alan S]

https://www.youtube.com/watch?v=ANj1V5B-x1g

I didn't actually watch this, but as it purports to show the installation of the Bolt On Riving Knife, I expect it shows adjustment.