Hayward Navigator and Pool Vac Ultra replacement gear box assembly - AXV408P. The gear
box assembly is used to make the cleaner turn in its unique pattern.
way to tell if the Hayward gear box is the problem is: while the cleaner is
in the pool and working take the hose and pull the hose so the cleaner is
not touching the ground but it is still underwater. You then wait and watch.
You should see the head turn to the right or left every few minutes. If this
works then the problem is most likely not the gear box. If it does not turn
then the problem is the gear box.