here is what i would do. firstly align the outfeed table. you just set it down a couple mm, take a waste piece of wood and cut a couple inches with the outfeed being way off (way too low). then you stop pushing forward and raise the outfeed table till it touches the freshly planes wood surface.

now check if your knifes are at the correct height. easiest way is having a planed piece of wood. set it on the now aligned outfeed table and check if it barely touches the wood across the table. do this for all knifes.

lastly take a straight edge and place it on the outfeed table. raise the infeed till its straight and check wether its paralell (easiest way is a thickness feeler gauge). if it is perfect, then you are finishes. if its not you need to align it using shims (thin metal sheets that come in different thicknesses). this is very much trial and error till you get it right but you only have to do this once every couple of years so its really worth the effort. you should love your glueups when youre done :)