What are you calling direction points? to the kneecars that hook the direction to the hose or the bruises that it carries within the overalls of the zipper and that communicate the movement to the steering connecting rods?
It seems a tongue twenty ... If they are the outlaws, those that hook the hose, it is not necessary to disassemble the zipper, however, if they are the ones between the zipper and the steering connecting rods, it seems to me that you have to remove the zipper to disassemble them.
All the best.