REPLACING DOUBLE OVEN

HI! I AM TRYING TO TAKE OUT A 24 INCH DOUBLE OVEN FROM THE WALL. IT APPEARS TO HAVE 6 SCREWS ATTACHING IT, BUT THE BOTTOM 2 ARE COVERED BY THE DOOR. tHE DOORS APPEAR TO PULL UP, BUT THERE IS A GUARD OVER SLIP HOLE THAT BLOCKS THE LIFTING OF THE DOOR. THE GUARD SEEMS TO BE ATTACHED TO A SPRING, AND I DO NOT WANT TO FORCE IT. THE STOVE IS A 1978 THERMADORE.

ANY IDEAS HOW TO REMOVE THE OVEN DOORS? THANK YOU IN ADVANCE!
RICK