Outer Limits 4x4 Board

Hey guys wondering if anyone has removed the motor that engages the transfer on the hilux/surfs with the ADD system, i unbolted it and can move it every way but back does anyone have any tips on how they operate?

I dont want to remove it if im going to have bits falling out or if there spring loaded etc (both unlikely but u never know)

Cheers

the centre diff motor in my 80 has to be in the locked position to remove. Perhaps it's the same here but i don't really know.