91巨炮在线丨高h七仙女辣黄h丨午夜a理论片在线播放丨日本欧美一区二区三区高清丨国四虎影2020丨国产欧美国日产在线播放丨欧美巨波霸乳影院丨污污污污污污www网站免费丨少妇淫交裸体视频丨91丨九色丨喷水丨精品国产免费人成电影在线看丨色喜国模李晴超大尺度丨色天堂视频丨欧美色视频在线播放丨岛国4k人妻一区二区三区丨老女人黄色片丨久草最新视频丨欧美成人猛片aaaaaaa丨深夜国产视频丨97精品亚成在人线免视频

Operation steps of the accumulator nitrogen filling vehicle:

The first step: first open the control box three-wire power supply (380V);

Step 2: Open the unloading valve (position reference manual) on the hydraulic module of the pump station until the system oil pressure drops to 0 MPa (ie, the pressure gauge shows 0);

Step 3: Open the top cover of the accumulator, then unscrew the black cap inside, and rotate the handle of the nitrogen-filled special tool to the maximum position (counterclockwise to the maximum), connect the accumulator, and press the special tool handle. Rotate clockwise. When you hear the sound coming out of the gas, observe the pressure gauge on the tool. The pressure display value is the pressure of the accumulator. At this time, turn it counterclockwise to the maximum and remove the special tool.

When the pressure is less than 5 MPa, it is necessary to flush the accumulator. The above is the detection process.