At present, the domestic stabilized soil mixer basically adopts Cummins NTA855 series engine, and its air filter model is CA 1077 (the filter element adopts AF89 1M filter element produced by Shanghai Fletcher Filter Co., Ltd.). The air filter is a two-stage dry air filter. In the first filter, big dust is centrifugally separated, and they are collected in a dust container, and the dust in the container can be opened periodically by the user. In the second-stage air cleaner, there is a treated paper filter element for filtering the residual dust in the intake air. The following briefly introduces the maintenance of air filter of stabilized soil mixer.
(1) In daily work, it is necessary to manually empty the dust storage device at regular intervals, that is, gently press it, open the dust bag and unload the accumulated dust.
(2) Loosen the wing nut and gently take out the main filter element. When using the cleaning paper filter, gently tap the end face to make the dust fall off. It is best to use compressed air or pump to blow air from the inner cavity of the filter element for cleaning (note: don't let the air nozzle get too close to the filter element), so as to remove the dust adhering to the outer surface of the filter element and effectively prevent the splashed dust from entering the inner surface of the filter element. For engines working in relatively humid areas for a long time, the air filter element is also prone to moisture and dust paste, which is breathable.
(3) After the filter element was cleaned for many times, cracks appeared at the joints, the filter shell was deformed and could not be sealed after assembly, the sealing aprons at both ends of the filter element were poorly sealed with the shell, the filter element bracket was deformed and improperly assembled, and the air inlet interface was poorly sealed. All these problems will lead to air intake short circuit. Therefore, during maintenance, we should ensure the normal state of the above parts, replace and repair the aging, deformed and damaged parts in time, and properly tighten the butterfly nut of the filter element, not too tight to prevent crushing the filter element.
(4) The safety filter element does not need maintenance. If the main filter element leaks, a large amount of dust adheres to the safety filter element, or after 500 hours of normal use, the safety filter element should be replaced.
(5) Do not clean the paper filter with water, diesel oil or gasoline, otherwise it will block the pores of the filter and increase the intake resistance. In a word, in the process of using the stabilized soil mixer, we must pay attention to the correct use and maintenance of the air filter, otherwise it will lead to the early wear of the engine cylinder, which will lead to the engine running out of gas and oil, and the power will drop, so that the engine has to enter the overhaul ahead of schedule, causing serious economic losses to users.
For more information about project/service/procurement bidding, and to improve the winning rate, please click on the bottom of official website Customer Service for free consultation:/#/? source=bdzd