Take pictures before you disassemble, makes it a lot easier to know where and how the parts go back together when it comes time to reassemble. I was working on a snow blower this past summer, and had difficulty getting the bearing out. Then after looking at the parts schematic and the blower, I realized that it was assembled incorrectly. Don't know if it happened at the factory, or if someone at the dealership had their hands into it, and put it together incorrectly.