I got this treadmill from someone else. I've looked online to try to determine the issue.
1). I've lubricated the deck with lubricant using the wand applicator which hasn't helped.
2). With the motor cover off. Stepping on the Belt causes the treadmill rollers to stop, and drive belt to stop.
3) With the Incline to 10, the belt does seem to run better and not stop while running/walking on it.
4) I attempted to stop the flywheel with a stick, but couldn't slow it down.
5) the Belt runs smoothly and no stutters or anything when no one else on belt.
Does it seem more so the belt, than anything else?
I inspected the belt and it doesn't seem bad or appear to be fraying, but it could be 2 years old or older i'm guessing.