Using the edge of the cylinder removal tool, depress the tab from step 2 while removing the driver bar.

Make sure the tab from step 1 is completely vertical and pointing towards one of the threaded cylinders. It can easily shift out of position, preventing removal of the driver bar.

Rotate the entire assembly 180 degrees so that the keyway faces the ceiling. While depressing the tab from step 2, wiggle the entire lockset. The driver bar should slide right out.