Thanks to Owner-Manuals.com! This manual was exactly what I needed. As Amana was purchased by Maytag and later by Whirlpool, there was no way to receive it from their websites. I was lucky to find this resource.
A comprehensive Operating and Service Manual. All schematics are complete and easy to read. The PCB drawings and complete parts list are very helpful. I would definitely recommend this manual.
Text excerpt from page 16 (click to view)
Positioning of shelves
Put a screwdriver into the slot of the shelf lock. Turn the screwdriver counterclockwise. Remove the shelf locks from the wire shelf.
Insert the ends of the wire shelf on the left-hand side at the desired position.
Slide the wire shelf to the left. The right-hand side of the shelf will come loose.
Slide the shelf into the holes on the right-hand side.
Lower the right-hand side of the wire shelf and let the left-hand side slide out of the holes in the wall. 16
Slide the plastic plugs into the holes of the wall. Snap the shelf locks onto the wire shelf.