Begin by placing the endstop on the side of the conveyor, center of where the pallet be stopping. Place one bolt in each side by hand to hold the endstop in place. When each bolt is in, tighten each 5/16th bolt with a 1/2 in. wrench. Do not tighten them too tight so that they have room for adjustment. Start by cycling the stop in and out while tightening one side. When one side is tight, move to the adjacent side and repeat this step. This is to ensure that everything is straight and in line when tightened.