Take the books off the ranges from the top to bottom, left to right. In a backward shift the flagged book is the one with the largest call number is is placed on the top shelf of the truck at the right end. Take the books off the range from the bottom to the top, right to left. Trucks are always loaded from the top to the bottom. Loading goes faster than unloading, so if we are short a team member, the loader will work alone.
Books move downward on the ranges.
In a backward shift , unloaders start with the flagged book from the right end of the top shelf of the truck and put it on the bottom shelf, at the right end. Books move upward on the ranges. These folks ferry the trucks between the loading and unloading sites. Because we will have over 10 shift teams working at a time, take the route you are shown. Use the elevator you are told to.