As a heavy construction machine, the engine temperature of the Carter excavator is an important indicator to measure the health status and work efficiency of the equipment during operation. Normally, the normal operating temperature range of Carter excavators is generally between 80°C and 95°C, but the specific value may vary depending on the model, operating conditions and season. When the engine temperature of the Carter excavator exceeds 100°C, we can consider it to have entered the high temperature warning zone. Prolonged exposure to this condition can not only lead to lubrication failure, exacerbate component wear, but also cause engine overheating failures, which can seriously affect equipment performance and life. Therefore, operators should pay close attention to the real-time temperature monitoring system of the Carter excavator, and once abnormal temperature rise is found, they should carry out cooling treatment or contact professional maintenance personnel in time to check and maintain. In order to ensure that the Carter excavator is always in the right operating temperature range, it is important to maintain and check the cooling system regularly, including replacing the coolant and cleaning the radiator. In summary, for Carter excavators, temperatures of more than 100°C are considered high, and they need to be paid close attention to and controlled accordingly.