LGS got one all torn apart.
Assembled the MS would stick, couldn't remove.
Guy there took it all apart (pin removal to accomplish), assembled, same prob.

All torn apart, I came over and reassembled it.
Fat, bifocals.......did it on my belly. Checked the schematic...............yup, a bit of hassle but yeah, parts all in right.
Pop in MS housing and locked up.

YGBFKM

Hmmmm, must be in MS housing..........wait a minute, they have a lockout feature.

Yup, owner had it partially engaged.

Step one..............make sure that fugger is off.
LOL