Step 1. Carefully turn top (part A) upside down on a soft flat surface, such as carpet, as shown below. Attach legs (part B) to top (part A) using bolts (part #1), spring washers (part #2), flat washers (part #3) and allen wrench (part #4). B #3 #2 #1 B B #4 B Step 2. Carefully turn unit upright.