Like a can of worms, eh?
Place the rubber seal around the rimof the top cover. Slide it ip on the cover about 2" from the bottom edge. Lower the cover into the tub. Place the ring clamp over the seal and slide it downward until it can be tightened against the rim of the lower tub half. The idea is to get the steel clamp on both halves of the tub while centering the seal. I find it easier if the seal is lightly lubed with detergent or softener. Don't tighten the clamp until the toop half of the tub has been adjusted down to within 1/2" of the spinner basket top. We don't want it to rub during spin, but we on't want the top cover so high that it hits the main top either. There will be a happy medium once you get it in place.