How do I change a 42" Craftsman Lawm
Ower Belt.

Look on the mower deck, there should be a diagram showing how the belt goes around the pullies. Make sure the deck is all the way down toward the ground first, and go through the most accessible side. There are liittle "arms" that the belt needs to go behind adjacent the pullies. It's not that hard once you understand the direction you should follow, hence the diagram. Good luck.