Ok easy fix...
I saw some pictures where the belt that drives the blades was crossed over. I did the same with mine and put the Jockey wheel back in the original position. All works fantastic now.
Still, the belt and pulley (on the blades) get very very hot, I cannot touch it so hot. Could that be caused by the belt slipping? Although the blade is turning and all seems to operate fine.
Is it normal for a belt/pulley to get so hot that you can't touch it?
Thanks in advance.
H.