It would be pretty hard to explain without looking at your adjustment mechanism. All I did was lay under the slide for a while and look at the apparatus. It soon became obvious which nut did what.
But one thing, if you have a dual ram mechanical slide, you will note that one ram is the powered one and the other is a slave, driven off the first.
I didn't want to use the adjusting nuts at the end of the rams for all of the adjustment, so I dropped the gear holder on the slave, then adjusted the powered one by hand so that I could jump one tooth on the slave gear. Then I fine tuned it with the adjusting nuts.
I know that is about as clear as mud, but if you look at yours, I think you might get the idea.
If I have time later, I might try to get some pics.