The air filter is an important part of the small concrete mixer, which is mainly used for air filtration into the engine. With the function of the air filter, it can ensure that the air entering the vehicle engine is clean and sufficient. The air filter is so important that maintenance is essential in the process of daily use. How should the air filter be maintained?

对于小型混凝土搅拌车，、随车起重运输车等工程车来说，空气滤清器是非常容易损坏的，因为工程车的作业环境一般都比较差，那在平时就需要多注意保养。小型混凝土搅拌车，专用车的空气滤清器比较常见的是惯性式空气滤清器，此类空滤要从以下两个方面做保养。

For engineering vehicles such as small concrete mixers, truck mounted cranes and transporters, the air filter is very easy to be damaged, because the working environment of engineering vehicles is generally poor, so you need to pay more attention to maintenance at ordinary times. Inertia air filter is the most common air filter of small concrete mixer and special vehicle. This kind of air filter should be maintained from the following two aspects.

一、空气滤清器的清理要有序：

1、 Clean the air filter in order:

小型混凝土搅拌车，取下滤芯，用干净的布或者是橡皮塞堵住滤芯两端，用软毛刷沿着遮缝方向刷去滤芯表面的灰尘，敲打滤芯端面，是灰尘脱落。也可使用压缩空气从滤芯由内向外吹气，吹去粘附在滤芯表面的灰尘，清理时禁止使用液体清洗，以防止滤芯粘附灰尘，造成堵塞。

For small concrete mixer truck, remove the filter element, block both ends of the filter element with a clean cloth or rubber stopper, brush the dust on the surface of the filter element along the seam covering direction with a soft brush, and knock the end face of the filter element to prevent the dust from falling off. Compressed air can also be used to blow from the inside to the outside of the filter element to remove the dust adhered to the surface of the filter element. Liquid cleaning is prohibited during cleaning, so as to prevent the filter element from adhering to dust and causing blockage.

小型混凝土搅拌车，检查主滤芯是否有破损，上下端面是否翘曲不平；检查主滤芯橡胶密封圈是否破损；检查主滤芯内侧是否有灰尘，如果有上述任一问题，就需要更换主滤芯。

For small concrete mixer, check whether the main filter element is damaged and whether the upper and lower end faces are warped and uneven; Check whether the rubber sealing ring of the main filter element is damaged; Check whether there is dust inside the main filter element. If there is any of the above problems, replace the main filter element.

小型混凝土搅拌车，使用强光手电筒检查滤芯是否破损，检查时不要拆下滤芯，若滤芯有破损应立即更换，在清理滤芯壳体的过程中，要使用干净抹布将壳体内壁擦拭干净，并检查排尘阀是否正常排尘。

For small concrete mixer truck, use a strong light flashlight to check whether the filter element is damaged. Do not remove the filter element during inspection. If the filter element is damaged, replace it immediately. In the process of cleaning the filter element shell, wipe the inner wall of the shell with a clean rag, and check whether the dust discharge valve is discharging dust normally.

二、空气滤清器也不能清理太过频繁

2、 The air filter should not be cleaned too often

假如空气滤清器清理太过频繁，那么滤芯的过滤能力就得不到充分的额发挥，这样不仅使得进入发动机的灰尘数量增多，造成发动机异常磨损，还会造成滤芯的早期损坏。小型混凝土搅拌车，滤芯在每次清理后，其容灰的能力就会降低20-40，随着清理次数的增加，滤芯的容灰量就会逐渐降低，当滤芯清理5次以后，容灰量就基本没有了，此时就需要更换空滤了。

If the air filter is cleaned too frequently, the filtering capacity of the filter element will not be brought into full play, which will not only increase the amount of dust entering the engine, cause abnormal wear of the engine, but also cause early damage to the filter element. For small-sized concrete mixer, the ash holding capacity of the filter element will be reduced by 20-40 after each cleaning. With the increase of cleaning times, the ash holding capacity of the filter element will be gradually reduced. After the filter element is cleaned for 5 times, the ash holding capacity will basically disappear. At this time, the air filter needs to be replaced.

空气滤清器是搅拌车配件的一种，虽然不算昂贵，但是如果损坏就会严重影响发动机的正常工作，小型混凝土搅拌车建议驾驶工程车的朋友一定要定期的清理空气滤清器。

Air filter is a kind of mixer accessories. Although the price is not expensive, if it is damaged, it will seriously affect the normal operation of the engine. For small concrete mixer, it is recommended that friends driving engineering vehicles must clean the air filter regularly.

空气滤清器是搅拌车配件的一种，虽然不算昂贵，但是如果损坏就会严重影响发动机的正常工作，小型自动上料搅拌车建议驾驶工程车的朋友一定要定期的清理空气滤清器。

Air filter is a kind of mixer accessories. Although the price is not expensive, if it is damaged, it will seriously affect the normal operation of the engine. It is recommended that friends driving engineering vehicles should clean the air filter regularly.

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