As a heavy machinery and equipment, the normal wear and tear of Carter excavators is the focus of many owners and operators in the process of long-term operation. First of all, the normal wear and tear of the excavator mainly includes key parts such as engine parts, hydraulic system components, track and chassis structures, and working devices (such as sticks, buckets, etc.). The wear and tear of engine parts is mainly reflected in cylinder liners, piston rings, bearings, etc., which can be effectively controlled within the normal range by regularly changing the oil and filter elements and following the maintenance manual. The normal wear and tear of the hydraulic system is closely related to the cleanliness, frequency of use and maintenance of the hydraulic oil, and regular replacement of the hydraulic oil and inspection of seals can ensure the stable operation of the hydraulic system. The wear of the track and chassis structure mainly depends on the working environment and operating habits, and timely adjustment of tension and avoiding hard impact can effectively delay the wear rate. As for the working device part, the wear degree of the parts directly involved in the excavation operation such as sticks and buckets depends on the hardness of the materials in contact, the intensity of the operation and other factors, and the wearing parts are regularly checked and replaced to ensure that the overall performance of the equipment is good. In summary, there is no fixed standard value for the normal wear and tear of Carter excavators, but it needs to be comprehensively evaluated according to the actual working conditions, frequency of use, maintenance and other factors of the equipment. In order to extend the service life of the excavator and reduce the operating cost, we recommend that the user strictly follow the manufacturer's recommended maintenance intervals and operating specifications, and at the same time choose genuine parts to replace the wear parts to ensure that the Carter excavator is always in the best condition.