How do you replace the alternator on a 1983 Volvo 240 DL?

To replace the alternator on a 1983 Volvo 240 DL, start by disconnecting the negative battery terminal for safety. Remove the drive belt by loosening the tensioner, then take out the electrical connections from the alternator. Unbolt the alternator from its mounting brackets and carefully remove it from the engine bay. Install the new alternator by reversing these steps, ensuring all connections are secure and the belt is properly tensioned before reconnecting the battery.