Repairing a pool vac?

Question

I have a year old hayward pool vac ultra that I want to repair myself. It rides very slowly and does not cover the whole pool like it did when it was new. What part would I replace to fix this problem? Could it be an internal motion device? All the external motion devices are great (shoes, wings,flaps, turbine). Also backwashed it and has proper suction. Please help if possible. Thanks

Answer 1

perhapps there is a bad bearing in it that is slowing it down.