How do you change the alternator belt on a Mazda rx 7?

To change the alternator belt on a Mazda RX-7, first, disconnect the negative battery terminal for safety. Loosen the alternator mounting bolts and the tensioner adjustment bolt to relieve tension on the old belt. Remove the old belt and install the new one, ensuring it is properly seated on the pulleys. Finally, adjust the tension of the belt by repositioning the alternator, tighten all bolts, and reconnect the battery terminal.