Please consider for the future a narrower loader (
http://www.trepel.com/products/loader/champ-35.html) for the front cargo door of the A320-family as the presently available cargo loader is too large for a catering truck docking at 1R. These narrow loaders exist in real world for ULD up to LD3-size. The AKE/AKH are then turned manually by a loader once they are on the dolly.
Thanks, Peter