The coupling and uncoupling of a tractor and trailer is a very important part of a drivers job. Proper coupling and uncoupling skills are vital for safe tractor-trailer operations. Improper coupling can result in trailers being dropped, electrical and air lines being torn, freight damage, cab damage, fines, lawsuits and other serious consequences. These consequences are always preventable.
The video below shows one technique for coupling and uncoupling a tractor-trailer combo.