A vending machine is one of the heaviest things most people ever move, often 500 to 900 pounds. Empty it, keep it upright, and respect the weight, because this is a dolly-and-team job, not a hero lift.
Pro tip: Deflate the drama by moving it fully empty; the difference between a loaded and empty machine can be 200+ pounds.
Watch out: A loaded vending machine can weigh 800+ pounds; never try to lift or walk one without a rated dolly and a team, or you will be crushed.