Hi there...
well almost... after you have loosened the set screw, you have to take out a little pin in order to get the brake off, it´s located under the brake just in front off the grove for holding the cockinglever, use a thick needle or better yet a one mm. splitdriver( thats about 1/32") you can now slide the outer section down towards the action, and then you can wiggle the inner section off...
hope it helps
best regards