With the continuous development of science and technology and the wide application of new technologies and processes, the types of small-scale automatic concrete mixer are more complete, the structure is more complex and the performance is more superior, and the requirements for the operation skills and equipment maintenance technology of automatic mixer are higher. The operators of mechanical equipment should have certain skills: fault judgment and maintenance, and have a high sense of responsibility and dedication.

设备使用的前提和基础是日常的维护和保养。混凝土搅拌机在长期的，不同环境中的使用过程中，机械的部件磨损，间隙增大，配合改变，直接影响到设备原有的平衡。设备的稳定性，可靠性，使用效益均会相当程度的降低，甚会导致机械设备丧失其固有的基本性能，无法正常运行。如此，设备就要进行大修或更换 新设备，这样无疑增加了企业成本，影响了企业资源的合理配置。因此必 须建立科学、有用的设备管理机制，加大设备日常管理的力度，理论与实际相结合，科学合理地制定设备的维护、保养计划。

The premise and basis of equipment use is daily maintenance and repair. During the long-term use of concrete mixer in different environments, the mechanical parts are worn, the gap increases and the coordination changes, which directly affect the original balance of the equipment. The stability, reliability and use benefit of the equipment will be reduced to a considerable extent, and even lead to the loss of its inherent basic performance and normal operation of mechanical equipment. In this way, the equipment will be overhauled or replaced with new equipment, which undoubtedly increases the enterprise cost and affects the rational allocation of enterprise resources. Therefore, we must establish a scientific and useful equipment management mechanism, strengthen the daily management of equipment, combine theory with practice, and scientifically and reasonably formulate the maintenance plan of equipment.

保养的原则和要求：小型混凝土自动搅拌车的保养重 点是：清洁、润滑、检查、紧固和防腐。

Maintenance principles and requirements: the maintenance of small automatic concrete mixer focuses on cleaning, lubrication, inspection, fastening and anti-corrosion.

保养必 须贯彻“养修并重，预防为主”的原则，做到定期保养、强制进行，正确处理使用、保养和修理的关系，不允许只用不养，只修不养。

Maintenance must implement the principle of "paying equal attention to maintenance and repair and focusing on prevention", achieve regular maintenance and mandatory maintenance, correctly handle the relationship between use, maintenance and repair, and do not allow only maintenance and repair.

保养机械要保证质量，按规定项目和要求逐项进行，不得漏保或不保。

The maintenance of machinery shall ensure the quality, and shall be carried out item by item according to the specified items and requirements, and shall not be omitted or not guaranteed.

保养项目、保养质量和保养中发现的问题应作好记录，报本部门专工。

Maintenance items, maintenance quality and problems found during maintenance shall be recorded and reported to the professional engineer of the Department.

保养作业的实施和监督：机械保养坚持推广以“清洁、润滑、调整、紧固、防腐”为主要内容的“十字”作业法，实行例行保养和定期保养制，严格按使用说明书规定的周期及检查保养项目进行。

Implementation and supervision of maintenance: mechanical maintenance shall adhere to the "cross" operation method with "cleaning, lubrication, adjustment, fastening and anti-corrosion" as the main content, implement routine maintenance and regular maintenance system, and strictly follow the cycle and inspection and maintenance items specified in the operation manual.

例行保养是在机械运行的前后及过程中进行的清洁和检查，主要检查要害、易损零部件的情况，冷却液、润滑剂、燃油量、仪表指示等。

Routine maintenance refers to the cleaning and inspection before, after and during the operation of the machine, mainly checking the conditions of key and vulnerable parts, coolant, lubricant, fuel quantity, instrument indication, etc.