You're a beginner. You're not supposed to have the wheel on top of the stump. Also the belts were ready to break. The machine is also a rental and the teeth were probably dull and belts too loose. You definitely need more experience before giving advice
Thanks for the advice, but hints at the video title are for beginners, this was never intended to be a pro video only for a novice homeowner like myself, I am sure you are correct on all parts thanks for the advice, I will remember this next time.