How do you change the alternator belt on a 1995 Mazda 626?

To change the alternator belt on a 1995 Mazda 626, first, disconnect the negative battery terminal to ensure safety. Loosen the tensioner pulley by turning the appropriate bolt, then remove the old belt from the alternator and other pulleys. Install the new belt by routing it around the pulleys according to the belt diagram, ensuring it is seated properly. Finally, adjust the tensioner to secure the new belt and reconnect the negative battery terminal.