Help.

My brother in law took apart the top rack for the above mentioned d wash. Now, He cannot figure out how to reattach the adjustable racks on the top rack. There are 2 adjustable racks on each side of the center rack. They will attach with 3 nylon looking clips on each side. Can't figure how to attach. Any help would be appreciated. MAybe a picture of them attached or a schematic that shows them attached.

Thanks for any help