zozee

If you're right handed, you will put the screw on with your right hand, hence think of the screw on the right hand side of the cutter (as you're holding it in cutting position).

So, the photo on right shows the correct way for you. I have done them the wrong way, and definitely it makes a difference. Now I hold the thing in cutting position, then turn the handle horizontally (parallel to table) so the screw is on the bottom; unscrew it and take the parts off in order and line them on the table that way. Closest part stays closest to cutter, farthest stays farthest. Then I undo the left side the same way. Be sure to clean out all the gunky, oily lint when you change blades, too. Much of the time it's the lint preventing the blade from turning properly, and you don't need a new blade.