1、 Drain and discard the hydraulic oil, tighten the joint, remove the oil filter, clean it with compressed air, and then return it to the oil tank and connect the pipeline. (Replace with new oil and do not inherit the use of old oil. Otherwise, the moving components in the hydraulic elevator system will accelerate wear and tear.)

二、卸下并拆開升降機(jī)下降閥，用壓縮空氣將柱塞吹凈，然后裝入，重新安上。

2、 Remove and disassemble the elevator lowering valve, blow out the plunger with compressed air, then install it and reinstall it.

三、液壓油的油質(zhì)和油位。升降機(jī)全程升起，在這位置時，液壓地面應(yīng)高出箱底 40～50 毫米。如發(fā)現(xiàn)液壓油變暗、發(fā)粘或者有砂礫等異物， 應(yīng)及時更換（32#液壓油）。

3、 The quality and level of hydraulic oil. The elevator should be raised throughout the entire process, and at this position, the hydraulic ground should be 40-50 millimeters higher than the bottom of the box. If the hydraulic oil becomes dark, sticky, or has foreign objects such as gravel, it should be replaced in a timely manner (32 # hydraulic oil).

四、各部位均加注一些潤滑油，延長升降機(jī)軸承使用壽命。 檢查液壓升降機(jī)滾輪、中間軸及軸承，油缸銷軸及軸承，臂架鉸軸及軸承等有無磨損。

4、 Add some lubricating oil to each part to extend the service life of the elevator bearings. Check for wear on the roller, intermediate shaft, and bearings of the hydraulic elevator, as well as the pin shaft and bearings of the oil cylinder, as well as the hinge shaft and bearings of the boom.

五、液壓系統(tǒng)任何部位之間，必需卸壓，以免壓力油噴出，升降機(jī)工作臺溘然下滑。

5、 Any part of the hydraulic system must first be depressurized to prevent pressure oil from spraying out and the elevator workbench suddenly sliding down.

六、不得任意調(diào)整溢流閥。液壓升降機(jī)系統(tǒng)中的每個元件都是在劃定壓力下工作的。任意調(diào)整溢流閥后，可能會造成液壓系統(tǒng)非正常運轉(zhuǎn)。

6、 Do not adjust the overflow valve arbitrarily. Each component in the hydraulic elevator system operates under a specified pressure. Arbitrary adjustment of the overflow valve may cause abnormal operation of the hydraulic system.

七、在升降機(jī)工作平臺下面檢驗時，必需吊住、支撐升降機(jī)工作平臺，以防升降機(jī)溘然下降。

7、 When inspecting under the working platform of the elevator, it is necessary to lift and support the working platform to prevent the elevator from suddenly descending.

八、非職員不得隨意拆裝電器，以防觸電或誤接。

8、 Non professional personnel are not allowed to disassemble and assemble electrical appliances at will to prevent electric shock or incorrect connection.