There are differences in the engine speed setting of Carter excavators in different operating environments. Generally speaking, the standard idle speed of a Carter excavator is usually between 600-800 rpm, which can not only ensure the basic operation of the equipment, but also save fuel to a certain extent. In the actual excavation, loading and other heavy-duty operations, the appropriate engine speed should be increased to 1500-2000 rpm to ensure that the power output of the excavator is sufficient, and at the same time, attention should be paid to avoid mechanical wear and energy waste caused by excessive speed. To achieve the best balance between efficiency and machine life, the operator needs to adjust the speed according to the excavator model, operating conditions and load size. For example, for the Carter large excavator series, because of its high torque and sufficient power, suitable medium and high-speed operation can give full play to the performance advantages, while for small excavators, more attention is paid to fine control and energy-saving effect, and reasonable control of speed is crucial. In summary, there is no fixed answer to the question of 'what is the right speed for Carter excavators', the key is to consider various factors and flexibly adjust to achieve the goal of optimal work efficiency and equipment protection. A better understanding of Carter excavator speed settings and related maintenance knowledge will help users better operate and maintain the equipment, extend its service life and improve overall operating efficiency.