Due to its weight, the Ultra48 unit can not be moved by a single person in normal situations, and at least two people are necessary. Even two people may struggle to move it safely in certain cases where staircases are involved or when having to place it into high rack slots. 

For that situations please follow this procedure. It will take a bit longer, but it will make it possible to manage it easily and safely. With this procedure the unit will be disassembled into 4 lighter pieces ( 3 drawers and the chasis), which makes it manageable even by a single person. And once you practice, it is faster and safer than the alternative method of removing and replacing the 48 hard disks that are inside.