How does a winch work?
Winches are mechanical devices that are used to adjust the tension of a wire or cable, in order to allow someone to pull, lift, or lower heavy equipment. Manual winches require a hand crank, while automatic winches run on a motor that will release the cable at the press of a button. These devices also have safety lock features that will automatically lock in place when you remove your hand from the crank to prevent injury or runaway equipment.