Pollutants in new oil: Although the hydraulic oil is refined and processed under relatively clean environmental conditions, it is polluted by pipelines, oil drums and oil storage tanks during transportation and storage, and some dust, sand, rust, moisture and other liquids will be mixed in the oil.

外界侵入污染物：液壓元件以及機(jī)械工作過程中，由于油箱密封不完善，元件密封和防護(hù)裝置損壞等原因，由系統(tǒng)外部侵入些污染物，如灰塵、砂土、水分等。

External invading pollutants: during the working process of hydraulic components and machinery, some pollutants, such as dust, sand, moisture, etc., are invading from the outside of the system due to imperfect sealing of oil tank, damage of component sealing and protective device.

元件和系統(tǒng)中殘留的污染物：液壓元件和液壓系統(tǒng)在加工、裝配和清洗過程中會(huì)由于清理工作進(jìn)行得不全而殘留一些污染物。

Residual pollutants in components and systems: some pollutants will remain during the processing, assembly and cleaning of hydraulic components and systems due to incomplete cleaning.

液壓系統(tǒng)內(nèi)部生成的污染物：液壓系統(tǒng)在工作中自身會(huì)生成一些固態(tài)顆粒污染物，其中既有液壓元件磨損和腐蝕而產(chǎn)生的金屬顆?；蛳鹉z粉末，又有油液氧化產(chǎn)生的污染物等。

Pollutants generated inside the hydraulic system: the hydraulic system will generate some solid particle pollutants during its work, including both metal particles or rubber powder caused by wear and corrosion of hydraulic components and pollutants caused by oil oxidation.

設(shè)備液壓泵的吸油口應(yīng)安裝粗濾器，且吸油口處應(yīng)距油箱底部相應(yīng)距離；出油口處應(yīng)安裝高壓精濾器，且過濾效果應(yīng)按照系統(tǒng)的工作要求，以免污物堵塞而引起液壓系統(tǒng)故障；裝載機(jī)的液壓油箱隔板上應(yīng)加裝過濾網(wǎng)，以除去回油過濾器未濾去的雜質(zhì)。

The oil suction port of the equipment hydraulic pump shall be installed with a coarse filter, and the oil suction port shall be at a corresponding distance from the bottom of the oil tank; High pressure fine filter shall be installed at the oil outlet, and the filtering effect shall be in accordance with the working requirements of the system to avoid the hydraulic system failure caused by dirt blockage; A filter screen shall be installed on the diaphragm of the hydraulic oil tank of the loader to remove the impurities not filtered by the oil return filter.

設(shè)備液壓缸上應(yīng)安裝金屬防護(hù)圈，以免污物被帶進(jìn)缸內(nèi)，并可避免泥水和光輻射對(duì)液壓缸侵蝕而引起泄漏；液壓元器件安裝前應(yīng)檢查、清理干凈其內(nèi)側(cè)的鐵屑及雜質(zhì)；定期檢查液壓油，一旦發(fā)現(xiàn)油液變質(zhì)、泡沫多、沉淀物多、油水分離等現(xiàn)象后應(yīng)進(jìn)行清洗系統(tǒng)并換油。

Metal protective ring shall be installed on the hydraulic cylinder of the equipment to prevent dirt from being brought into the cylinder, and to avoid leakage caused by erosion of mud water and light radiation on the hydraulic cylinder; Check and clean the iron filings and impurities inside the hydraulic components before installation; Regular inspection of hydraulic oil, once the oil deterioration, foam, sediment and oil-water separation and so on, cleaning system and oil change should be carried out.

新油加入裝載機(jī)的油箱前應(yīng)經(jīng)過靜置沉淀，過濾后方可加入，需要時(shí)可設(shè)中間油箱以進(jìn)行新油的沉淀和過濾，保障油液的清潔

Before the new oil is added into the oil tank of the loader, it shall be added after static sedimentation and filtration. If necessary, an intermediate oil tank can be set to precipitate and filter the new oil to ensure the cleanness of the oil

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