Bushing or not?

Still not apart, arrgghh...so I've taken it even further apart! I swear a rubiks cube would be an easier puzzle, there is a shot here showing three of the four shafts slid into each other, one photo shows the upper bearing its pressed on the shaft so the shaft can not slide through the can and the rotor wheel won't allow it to go up, likewise when I try to slide the large inner tube down it only goes so far and gets stuck I'm reluctant to hit harder in fear of breaking something, any idea's?

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