I just use a large crescent-wrench. Drop crown-race onto fork. Place adjustable-wrench jaws around steerer-tube. Tighten it up so that it is tight on the steerer. Slide wrench down steerer until it's resting on the race. Make sure jaws of wrench is at right-angle to steerer. Then slide hammer down next to steerer-tube and hit the wrench right in between the two jaws to push on them evenly. Usually takes 1-2 blows with the hammer and that's it!