The loader hydraulic oil is blackened. According to the analysis of oil products, unqualified oil products and non-standard oil products are used, resulting in oil blackening. This situation rarely occurs when we pay attention to the selection of high-quality oil produced by regular manufacturers. The reason for the blackening of the hydraulic oil of the general loader still needs to be analyzed from the situation in use:

一、高溫影響?？鼓ヒ簤河烷L期處在高溫環(huán)境中，會氧化失效，出現(xiàn)變黑、變稠的現(xiàn)象；積炭、油泥、漆膜等物質(zhì)的增加；抗磨液壓油氧化,油品變質(zhì)，從而導(dǎo)致深度氧化變黑。

1、 High temperature effects. The anti-wear hydraulic oil will become black and thick due to oxidation failure in high temperature environment for a long time; Increase of carbon deposit, oil sludge, paint film and other substances; The anti-wear hydraulic oil oxidizes and the oil deteriorates, resulting in deep oxidation and blackening.

二、雜質(zhì)。主要來源于空氣中的塵埃、水、金屬磨屑、粉塵等雜質(zhì)進(jìn)入油品、抗磨液壓油受到了污染。

2、 Impurities. It mainly comes from dust, water, metal wear debris, dust and other impurities in the air, which enter the oil and anti-wear hydraulic oil and are polluted.

三、換油不干凈。換油時(shí)是否將油箱中的液壓油全部清空，并用新油循環(huán)循環(huán)系統(tǒng)后，將油箱全部用棉布擦拭干凈后再加新油，如果沒有，就可能有大量鐵屑?xì)埩粼谟拖渲?，也會?dǎo)致新油被污染而發(fā)黑。由于是新機(jī)器，在設(shè)備磨合時(shí)會產(chǎn)生大量的鐵屑，不知你換油的時(shí)候是否將油箱中的液壓油全部清空，并用新油循環(huán)循環(huán)系統(tǒng)后，將油箱全部用棉布擦拭干凈后再加新油，如果沒有，就可能有大量鐵屑?xì)埩粼谟拖渲?，也會?dǎo)致新油被污染而發(fā)黑。

3、 The oil change is not clean. Whether the hydraulic oil in the oil tank is completely emptied during oil change, and after using the new oil circulation system, wipe all the oil tank with cotton cloth and add new oil. If not, a large amount of iron filings may remain in the oil tank, which will also cause the new oil to be polluted and blackened. Because it is a new machine, a large amount of iron filings will be generated during equipment running in. I wonder if you empty all the hydraulic oil in the oil tank when changing the oil, and after using the new oil circulation system, wipe all the oil tank with cotton cloth and add new oil. If not, a large amount of iron filings may remain in the oil tank, which will also lead to the pollution and blackening of the new oil.

四、液壓系統(tǒng)設(shè)計(jì)不合理。液壓油變黑之后如果替換了新的液壓油使用一段時(shí)間又變黑了，除了排查元件是否有問題之外，小編建議確認(rèn)液壓系統(tǒng)設(shè)計(jì)是否合理，如不合理及時(shí)通過相應(yīng)的技術(shù)補(bǔ)救。

4、 The design of hydraulic system is unreasonable. After the hydraulic oil turns black, if the new hydraulic oil is replaced and turns black after use for a period of time, in addition to checking whether there is a problem with the components, the Xiaobian suggests to confirm whether the design of the hydraulic system is reasonable, and if it is unreasonable, make corresponding technical remedies in time.