一、進行油水分離
1、 Perform oil-water separation
考慮到如果繼續清洗可能需要花費更高成本，經研究決定采用油、水分離法清除系統內水分。油、水分離法具體實施步驟如下：
Considering that further cleaning may require higher costs, it has been decided through research to use the oil water separation method to remove water from the system. The specific implementation steps of the oil water separation method are as follows:
小型挖掘機
Compact Excavator
1、 準備工作
1. Preparation work
準備數個干凈的盛油桶、2個干凈且無銹跡的鐵皮桶、2個煤氣罐(加滿煤氣)、2個煤氣灶頭、1個干凈盛瓢、1個溫度計和若干不帶絨毛的棉布。
Prepare several clean oil drums, 2 clean and rust free iron drums, 2 gas tanks (filled with gas), 2 gas stoves, 1 clean ladle, 1 thermometer, and several lint free cotton cloths.
2、 通過加熱和冷卻分離水分
2. Separation of moisture through heating and cooling
從主泵吸油管處一次放出系統內絕大部分污染變質的液壓油，分別倒進2個鐵皮桶內進行加熱(分裝2桶是為了縮短加熱時間)。待油桶內變質油溫升至78～82℃時，關掉火焰，讓變質的油慢慢冷卻。因為油的密度比水小，油、水會自動分離(油在上、水在下)。
Drain the majority of contaminated and deteriorated hydraulic oil from the main pump suction pipe at once and pour it into two iron drums for heating (split into two drums to shorten heating time). When the temperature of the deteriorated oil in the oil barrel rises to 78-82 ℃, turn off the flame and allow the deteriorated oil to slowly cool. Because the density of oil is smaller than that of water, oil and water will automatically separate (oil above and water below).
當溫度下降到68～72℃時，先用盛瓢輕輕地將上部4/5變質油舀出加入系統內，再將剩余的1/5的油水混合物倒出來存放，將加熱桶用棉布擦干待后續使用。
When the temperature drops to 68-72 ℃, first use a ladle to gently scoop out the top 4/5 of the spoiled oil and add it to the system. Then, pour out the remaining 1/5 of the oil-water mixture and store it. Finally, dry the heating bucket with a cotton cloth for future use.
3、 重復油水分離動作
3. Repeat the oil-water separation action
啟動挖掘機做復合動作，讓液壓油溫升高到50℃，每個動作不得少于50次，時間不少于30min。做完復合動作后，再將系統內的油全部放出來，倒進加熱桶內進行加熱。按步驟2和3的方法繼續進行復合動作，且往復循環5次以上。注意循環過程中要補充新油液進入系統。
Start the excavator and perform a composite action to raise the hydraulic oil temperature to 50 ℃. Each action should not be less than 50 times and the time should not be less than 30 minutes. After completing the composite action, drain all the oil from the system and pour it into a heating bucket for heating. Continue the composite action according to steps 2 and 3, and repeat it more than 5 times. Pay attention to adding new oil into the system during the circulation process.
4、放出系統中油液
4. Drain the oil from the system
做完1次循環動作，放平挖掘機，將動臂斗桿和鏟斗缸完全縮回，使液壓缸、管路內液壓油限度流回到油箱。將機器熄火后放出液壓油箱、液壓缸、管路、行走馬達及附件內的油液。
After completing the last cycle action, level the excavator and fully retract the boom stick and bucket cylinder, allowing the hydraulic oil in the hydraulic cylinder and pipeline to flow back to the tank to the maximum extent possible. After turning off the machine, drain the oil from the hydraulic oil tank, hydraulic cylinders, pipelines, walking motors, and accessories.
二、油水分離效果
2、 Oil water separation effect
連接各管路接頭，加入先前放出的液壓油量到出廠標準。啟動挖掘機待油溫達到50℃，讓機器運行1h，觀察油液呈淡黃色、色澤清亮。
Connect each pipeline connector and add the previously discharged hydraulic oil to the factory standard. Start the excavator and wait for the oil temperature to reach 50 ℃. Let the machine run for 1 hour and observe that the oil is light yellow and has a clear color.
繼續使用10h后再次觀察油液，未發現其有變質現象，油液色澤依然清亮，說明油液已經基本正常。
After continuing to use for 10 hours, the oil was observed again and no signs of deterioration were found. The color of the oil remained clear, indicating that the oil was basically normal.
隨后對該機進行跟蹤，未發現油液再次變質。至此，該機油液變質問題已徹底解決，也證明在有限的條件下，此油、水分離法行之有效。
Subsequently, the machine was tracked and no further deterioration of the oil was found. At this point, the problem of deterioration of the engine oil has been completely resolved, and it has been proven that under limited conditions, this oil water separation method is effective.
三、預防措施
3、 Preventive measures
根據實際情況分析，如此大的進水量只能從液壓油箱的加油口進入，極有可能是誤操作造成。該機的液壓油箱蓋為簡單旋裝形式，沒有防護鎖保護。為了避免誤操作再次發生，決定將液壓油箱蓋加裝防護鎖。
According to the actual situation analysis, such a large amount of water can only enter from the refueling port of the hydraulic oil tank, which is highly likely caused by misoperation. The hydraulic oil tank cover of this machine is a simple spin on form without protective lock protection. In order to avoid reoccurrence of misoperation, it was decided to install a protective lock on the hydraulic oil tank cover.
經過這一處理方法，液壓系統進水的問題算是得到了解決，我們在熟悉這一解決辦法的時候更應該注意預防這一現象的發生，是機器使用時間更長。
After this treatment method, the problem of water ingress into the hydraulic system has been solved. When we are familiar with this solution, we should pay more attention to preventing this phenomenon, as the machine has been used for a longer time.
With the summary above for leasing extended arm excavators, I hope it can be helpful to our customers. If you have any questions or need help, please click on our website: http://www.10q1.com Or call for consultation, and we will do our best to solve it for you
