Question for an old, but still relevant, post. Hope someone is following.
Emerydc8...When you say "Be careful when you pull it out though because the blades will fall out and you need to know how to get them back correctly."...how do you know how to get them back in correctly? Do they just fall out as you pull it apart? And when you re-install the front is there an alignment of the shaft required?

I believe this is mentioned in the FSM. From memory, one edge of the blades is square, the opposite edge is rounded. The round edge goes outward against the metal donut. It's difficult to see, best thing is to not lose the orientation in the first place.

No alignment is required when re-installing, everything should be keyed so it only fits one way. (Except the aforementioned blades.)

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