Remove all protective materials. Place parts on a non-arasive surface to avoid scratching. If you are missing any parts or are unsure how to proceed with assembly, call our Customer Service Center at 1-800-416-3511 (Mon - Fri 9a-5p EST). Do not attempt assembly if any parts are missing or damaged. Read entire assembly instructions before beginning assembly. STEP 2 WHEEL ASSEMBLY Insert wheel axle (M) through bottom shaft of right side support frame (Q).so that it is centered inside the shaft wit