OK. here is my check-off list.

Cocking rods free to move?
Ejector or extractor rods free to move
Di-chem the forend knuckle to check wear pattern
Di-chem forend end joint pin to check wear pattern
Di-chem breech face to check wear pattern

Starting from there, we can move forward


USAF RET 1971-95 [Linked Image from jpgbox.com]