Slide the can and stator/endbell back together. You'll want to allow a 3/16" piece of the shaft to protrude from the rear of the can, and the remainder out the front. (3/16" not seen in this picture) This is for the rear collar shaft lock. Tighten the set screw on the shaft. It should be tightened a quarter turn past the first contact point. DON'T over tighten and crush the tube.