Originally Posted by
lateott
For #1, how do you think the "spring assist" helps locate the plug in position? In fact installation would require pushing down the plug against the springs, which are working against alignment of the stops.
For #3, unlikely, as this would mean the plug install would have a different procedure from the E/E door option which cannot be installed with friction between the pads and pins. More likely there is a specified gap which is closed upon pressurization. Also, your step #3 would mean the 12 adjustments would need to be made every time the plug is opened and every time it is closed.
I think #3 is a reference to the "roller pins" (aka rollers) - if so, it's true.