How do you replace a Volvo S 80 alternator?

To replace the alternator on a Volvo S80, first disconnect the negative battery terminal to ensure safety. Remove any components obstructing access to the alternator, such as the engine cover or air intake duct. Unbolt the alternator from its mounting bracket and disconnect the electrical connections. Install the new alternator in reverse order, ensuring all connections are secure and the belt is properly tensioned before reconnecting the battery.