I just bought a new router (DeWalt 618, changeable fixed/plunge base). It comes with the motor mounted on the fixed base, which is what I planned to use anyway. I opened the locking lever and tried to turn the dial to adjust the depth, but nothing budged. The instructions were no help: in fact, they just added to the puzzle. In this diagram from the manual, the depth adjustment ring is part of the fixed base:
However, in this photo, you can see that the depth adjustment ring on the actual router is part of the motor assembly:
Moreover, the depth adjustment ring is allegedly removable (e.g., if you're planning to attach the plunge base), but I cannot budge it.
Obviously, I don't really care whether the diagram is accurate; I just want to be able to use the router. Is there something I'm missing? Did I buy defective merchandise? What is going on here?