The diesel filter replacement cycle of Carter excavator is an important part of its maintenance, which plays a key role in ensuring the good operation of the equipment and prolonging the life of the engine. Generally speaking, the frequency of replacing the diesel filter of the Carter excavator is closely related to its working environment, use intensity and the quality of the diesel fuel selected. Under ideal working conditions, i.e., clean air and diesel quality, it is recommended to replace the diesel filter every 500 hours or so. However, in the case of high dust or low diesel purity, it may need to be replaced more frequently, such as every 300 hours or even less. In order to ensure the stable operation of the Carter excavator, the user should refer to the official maintenance manual provided by the equipment manufacturer, formulate the diesel filter replacement plan according to the actual working conditions and operating hours, and strictly implement it. At the same time, it is also an indispensable maintenance measure to regularly inspect the firewood filter and replace it in time when problems such as blockage and damage are found. In summary, the timing of the replacement of the diesel filter of the Carter excavator is not only subject to a fixed time period, but also flexibly adjusted according to the actual situation to achieve the best equipment maintenance effect. In terms of optimizing the keyword layout, this article focuses on the three core elements of "Carter excavator", "diesel filter replacement" and "replacement cycle", aiming to provide users with detailed guidance information about the maintenance of Carter excavator diesel filter.