How do you change the burner tubes on a weber propane grill?

To change the burner tubes on a Weber propane grill, first ensure the grill is completely cool and disconnected from the propane source. Remove the cooking grates and flavorizer bars to access the burners. Unscrew or unclip the old burner tubes from their mounts and carefully lift them out. Install the new burner tubes by reversing the process, ensuring they are securely attached before reassembling the grill.