Push the rubber locator devices through up to the "shoulder" (ring? wider flangey bit?). Then grab the end from the other side of the plate and pull it around in a circle. When you pull it to one side, the opposite edge of the wide bit should pop through the hole, and then you just "walk" the rest through by pulling the end around in a circular motion.The plastic 'nipples' (as someone oh so eloquently called them on another thread) or locators which you use to position the wing on the plate ... how do they work? Does one push the ridge along them all the way through the hole in the plate? Or just ensure that the thinner bit fits into the hole?
I ask because I have yet to be bale to push the ridge through the hole and am left wondering whether I am trying to do something which isn't right.
(Does that make sense?)