How do I install the rear wheels on the stroller?

Insert the axle rod through the axle opening, making sure the axle key lines up with the key holes, then firmly attach the hub adapter onto the wheel. Place the wheel and washer on the axle, then push the pin through the hole in the axle with the curved end of the pin facing up. Finally, snap the hubcap over the pin and repeat on the other wheel. (Pages 11-13)