How to replace alternator belt 1994 Jaguar XJS?

To replace the alternator belt on a 1994 Jaguar XJS, first, disconnect the negative battery terminal to ensure safety. Loosen the alternator mounting bolts and the adjusting bolt to relieve tension on the old belt. Remove the old belt and install the new one, ensuring it is properly aligned on the pulleys. Finally, adjust the tension by repositioning the alternator, tighten the bolts, and reconnect the battery terminal.