Our lamps are made in the traditional way without using glue, so they can be re-wired in the decades to come. As a result, the bases do require tightening from time to time (sometimes even after a bumpy UPS ride upon arrival). To do this, remove the shade and unplug the base. Hold the socket firmly in place (to prevent the wires from spinning inside the socket), and use pliers to tighten the nut under the base. If the lamp is a floor lamp, it is often easier to have someone else hold the socket while you tighten the nut. The final position of the pull chain should be due right of the stem with the harp lined up to the front and back. If your lamp is crooked after you have tightened it, stabilize the base by pressing down on it with one hand. With your other hand, firmly grip the lower section of the harp and socket and slowly press the stem in the direction you want to move it. For a floor lamp, put a cloth over the base and use both feet to hold the base steady while straightening the stem.