Just replaced the drive belt as well.Could be a belt slipping. Did you do anything else to the mower.
I did. I am thinking that the parking brake might be stuck since I can't get the handle to move.Did you use an OEM Deere belt? some people have issues with Aftermarket belts on deere machinery.
View attachment 58399
Specification Belt Section HA Effective Length 91.913 IN Width 0.500 IN Thickness 0.350 IN Angle 38
Still can't get the parking brake lever or rod to move. Not sure what's happening. I have sprayed it, hit it with the air chisel, nothing works. The motor is great, not so much the drive assembly. Any more ideas????