How often should machine guns undergo thermal checks?

Machine guns should undergo thermal checks regularly, especially after sustained fire, because prolonged and intense firing can lead to overheating. This overheating can compromise the functionality and accuracy of the weapon, as well as potentially damage critical components. Regular thermal checks help ensure that the machine gun remains within operational temperature limits, thereby enhancing safety and effectiveness during combat operations. By conducting these checks after periods of heavy use, operators can assess the equipment's condition and take necessary actions, such as allowing the weapon to cool down or performing maintenance if overheating is detected. This practice is essential for maintaining the reliability and longevity of the weapon system in various operational scenarios.