I was picking up leaves today, after I dumped my hopper I tried to engage the blades and the belt made a horrible noise. So I shut the mower down and tried to spin them with my hand and could barely do it. It will spin backwards but not forwards. Something is very wrong. Walkers guys please help. Thanks, Clint Green Bye the way. It is a 95 ghs with a 42" deck and a 19 hp (i think) with 1120 hrs on it.