How do you replace the alternator on a 1997 Ford Fiesta zetec mk5 fiesta?

To replace the alternator on a 1997 Ford Fiesta Zetec MK5, first disconnect the negative battery terminal to ensure safety. Remove the drive belt by loosening the tensioner, then detach the electrical connections from the alternator. Unscrew the mounting bolts to remove the old alternator, and install the new one by reversing the process. Finally, reattach the drive belt, reconnect the battery, and check the alternator's operation.