Hoover Fusion Plus Cyclonic Upright Vacuum Vacuum "fan belt screaming" Questions

Belt is good.Sound appears to be coming from the Motor. I have disassembled unit and found a crack on the fan. Is this the problem? how do you remove the fan from the motor shaft? Yes, I would say the

...belt and filter, turned it on and is extremely loud, almost like a scream. Any idea what could be causing this and how to fix? Loud noises from this model are caused by dirt build up on the suction ...