1 Take the allen wrench, and turn the bolts until the legs are secure. DO NOT TIGHTEN COMPLETELY. Stop when you feel you are adding force to tighten the bolt. 2 3 Stand chair up on an even surface and check that it is balanced. If there is a slight wobble, apply downward pressure in the corner where a leg is uneven. Keeping pressure in that corner, tighten all bolts. If balanced, apply downward pressure evenly in the center and tighten all bolt. Do not over-tighten beyond hole depth.