Although it sounds very technical, its not really, I doubt you have to replace the cams on the freezer side they hardly wear out, its the weight of the fridge door that normally causes fault. So thats a good thing, you won't have to worry about the water line, even if you did, just disconnecting the line at the fitting under the front grill is all thats required, having a second pair of hands to guide it back thru the lower bracket would be nice but not mandatory.
On either side, take everything off the shelves inside, go to the top hinge and unbolt the hinge from the cabinent. Pick up the entire door and place it down on a blanket or rug. You can access the bottom cam risers very well now, reinstall and lubricate with some sort of clear silicone grease and place door back on lower hinge, then bolt hinge back, try to square up the door as you tighten it down, some will only go one way and the three screw holes are centered with no room for adjustment.