1) Open the high-pressure multi-stage pump inlet valve, slightly open the vent valve, until the vent to see oil, and no gas, close the vent valve; 2) Manually turn on the auxiliary oil multi-stage pump to adjust the lubricating oil pressure greater than 0.25MPa, adjust the high-pressure motor lubricating oil pressure to 0.01 ~ 0.05MPa, the lubricating oil branch back to normal oil; 3) wear good labor insurance products, ready for related tools; 4) Check the reaction feed multistage pump inlet and outlet flow, the raw material tank liquid level to meet the open multi-stage pump requirements; 5) Turn on the multi-stage pumping of raw material to the reaction tank, notify the opening of the return valve to be not less than 40% (to meet the minimum flow of this multistage pump not less than 66 tons / hour) normal; 6) check the oil station oil level is appropriate, sample analysis of lubricants, oil filter filter differential pressure, pressure switch, pressure and other instruments far into normal, oil cooler process is normal, and put into use; 7) Inspection machine multi-stage pump, pressure gauge, wheel cover, wheel bolts, anchor bolts, valves, pipe flange gasket intact; 8) External operation report multi-stage pump to meet the conditions to meet, within the operating interlock reset, observed in the DCS reaction feed multi-stage pump start multi-stage pump to meet the conditions; 9) manual pan two laps, high-pressure multi-stage pump without unevenness of the phenomenon. Aluminum Extrusion,Aluminum Tube Profile,Seamless Aluminum Tube,Aluminum Railing Profiles Guangdong Huachang Group Co., Ltd. , https://www.wacangaluminium.com