Step 6: Slide the base back into the router body. The easiest way to do this with this router is in the upright position.
Release the lock handle and then slide the router body over the column. Make sure that the threaded rod slides through the top of the body housing. (There should be a white plastic guard that fits over the hole in the body. This keeps the threaded rod from rubbing against the body itself.)
Step 7: Thread the large lock nut, the knurled nut, the waffle washer and the second knurled nut over the threaded rod and turn them until they are about ¾” from the top of the rod. Tighten with an adjustable wrench. Your Router is now ready to mount into your table and will be much easier to adjust without the springs installed.