Yes, but I did it so long ago I would have to take it apart to look at it again to remind myself what I did... There are a couple of screws that need to be adjusted to get it right... the only reason I remember is because I got it really wrong at first and the sear would hold just enough to push the bolt closed, and release as I locked the bolt - not the desired effect.
If no one posts a how-to this week, send me an IM on Thursday or Friday and I'll see if I can get some time next weekend to pull it out and make a video... I think I'll remember how if I take it apart and look at it.