Hmm, Best way.
I bet someone else will have a better tip than I can think off.
Most of the motors I recently rebuilt, the first, it did not have it and I didnt check 4 it, and I needed it. But after that. I checked everytime. but I just tilted it to its side, when I had the plate off and had my hand there, and it rolled out along with the long rod.
So I would gather in the frame, you might need to people, to do the same thing.
Sporty