1、喷嘴无污染物或堵塞。如果有喷孔阻塞，水流和水压将受到阻碍，从而影响清 洗机的性能。数控高压清洗机的水在清洗周期中是再循环的，其中携带的污染物可能停留在喷淋臂内。喷淋臂需定期清洁。
1. The nozzle is free of contamination or blockage. If the orifice is blocked, the water flow and water pressure will be blocked, which will affect the performance of the washer. The water of the CNC high-pressure washer is recycled during the cleaning cycle, and the pollutants carried in it may stay in the spray arm. The spray arm should be cleaned regularly.
2、 喷淋臂上的出水孔朝着目标表面。有的清洗机的喷淋臂在使用过程中松动旋转，导致喷淋无法朝向器械。许多喷淋臂两边都有孔；这些孔可以调节朝上或朝下。
2. The water outlet hole on the spray arm faces the target surface. The spray arm of some cleaning machines is loose and rotated during use, which makes the spray unable to face the instrument. Many spray arms have holes on both sides; These holes can be adjusted upward or downward.
3、 喷淋臂齐全：有的医院的喷淋臂全部缺失但机器仍在使用。如果喷淋臂缺失清洗机无法正常运转，因为水压和喷水会大大削弱机械清洗作用。如果喷淋臂缺失则不得使用该清洗机。
3. Complete spray arms: some hospitals have no spray arms but the machine is still in use. If the spray arm is missing, the washer cannot operate normally, because the water pressure and water spray will greatly weaken the mechanical cleaning effect. Do not use the washer if the spray arm is missing.
4、 喷淋臂旋转无阻碍：测试喷淋臂确保旋转顺滑均匀。
4. Spray arm rotation is unimpeded: test the spray arm to ensure smooth and even rotation.
5、清洗机底部排水筛无杂物：清洗机底部的排水筛会留滞来自器械组的污染物。应少每天取下筛网并清洗，或根据使用次数增加清洗频率。阻塞的筛网会阻碍水流和排水，从而影响清洗机的清洗效力。

5. The drain screen at the bottom of the washer is free of impurities: the drain screen at the bottom of the washer will retain pollutants from the instrument set. The screen should be removed and cleaned at least daily, or more frequently depending on the number of uses. Blocked screen will block water flow and drainage, thus affecting the cleaning effectiveness of the washer.
6、器械架联轴器与歧管正确对齐。确保清洗机水/清洗液进口与清洗架歧管正确对齐，如果没有对齐，水流、水分布及水压都会受到影响，并且都可能导致清洗机运行不正常。水压不足会导致喷淋臂无法正常运转，还会削弱机械清洗作用。
6. The instrument rack coupling is correctly aligned with the manifold. Make sure that the washer water/detergent inlet is correctly aligned with the cleaning rack manifold. If it is not aligned, the water flow, water distribution and water pressure will be affected, and may cause the washer to operate abnormally. Insufficient water pressure will cause the spray arm to fail to operate normally and weaken the mechanical cleaning effect.
7、喷淋臂轴套存在且未受损：确保所有轴套、联轴器、垫圈等存在且无任何裂痕或破损。
7. Spray arm shaft sleeve is present and undamaged: ensure that all shaft sleeves, couplings, washers, etc. are present and free from any cracks or damage.
8、清洗剂/化学品输送管道清晰、功能正常：目视检查所有清洗剂等化学品输送管道和连接端口：确保它们清晰，清洁，无阻塞、滞留空气、扭结。管道上的磨损痕迹、破损或泄漏也应注意检查。如果输送管道有缺陷，则清洗液的浓度可能不正确从而使清洗循环无效。
8. Cleaning agent/chemical delivery pipeline is clear and functional: visually inspect all cleaning agent and other chemical delivery pipelines and connection ports: ensure that they are clear, clean and free of blockage, trapped air and kinks. Attention shall also be paid to the inspection of wear marks, damages or leaks on the pipeline. If the delivery pipe is defective, the concentration of the cleaning solution may be incorrect and the cleaning cycle may be invalid.
9、检查所有化学品、清洗剂浓度是否正确：确保清洗剂及其他化学品容器内的余量充足，确保输送分配管道正确连接到对应的容器。
9. Check whether the concentration of all chemicals and cleaning agents is correct: ensure that there is sufficient margin in the containers of cleaning agents and other chemicals, and ensure that the transmission and distribution pipes are correctly connected to the corresponding containers.
10、观察清洗机总体情况：舱体内表面应清洁，无污点、水垢及其它污染物堆积。这些都可能影响清洗机的性能和清洗效果。污点和水垢可能表明有水质、化学品浓度过高等问题。确保任何适用的垫圈、密封圈、记录器都处于正常状态。
10. Observe the overall condition of the cleaning machine: the internal surface of the cabin shall be clean, and there shall be no dirt, scale and other pollutants. These may affect the performance and cleaning effect of the cleaning machine. Stains and scale may indicate problems such as high water quality and chemical concentration. Ensure that any applicable gaskets, sealing rings and recorders are in normal condition.
11、检查舱体内照明灯具工作正常：清洗机拥有视窗和内部照明灯具允许在循环过程中观察清洗机的性能。循环过程中需观察喷淋臂是否正常运行，无器械/托盘阻碍清洗机的性能。观察水流，确保无泡沫过多等迹象。
11. Check that the lighting fixtures in the cabin work normally: the washer has a window and internal lighting fixtures, allowing the performance of the washer to be observed during the cycle. During the circulation, it is necessary to observe whether the spray arm operates normally, and no instrument/tray hinders the performance of the washer. Observe the water flow to ensure that there is no sign of excessive foam.