High pressure hand pump preparation before use what pressure electric pump with a good characteristic in the market has won a good reputation manual pump, let's look at the specific preparation before hand pump use, let us detail look at the related knowledge: 1. high pressure hand pump pressure is high, we use the time to conduct leak check, check your system for each connection is reliable connection, whether with or without leakage. Close pressure hand pump unloader valve, no leakage, pressure is stable, smooth operation is working properly. 2. Do not forget to check unloaded, when we need to uninstall slowly rotating high pressure hand pump unloader valve, pressure gauge zero observation system unloaded. Preparation before use Do not ignore pressure electric pump SYB-2 manual pump, proper use will be better used. Manual pump works can be divided into four processes 1, filling: oil pump at the beginning of the work, while the oil is high and low pressure plunger pressed into high and low pressure check valve SBD20D hand pumps, high and low pressure through the one-way valve into the cylinder. When the pressure rises lMpa, the low-pressure oil from the low pressure relief valve overflow pipe back to the reservoir. 2, the step-up: on the basis of the above-described process. High pressure plunger continue to work, the pressure gradually increased. When the pressure exceeds the rated pressure 63Mpa, the high-pressure valve is opened, the high-pressure oil from the reservoir back pressure valve overflow pipe, the pressure is always maintained at 63Mpa. Pressure valve is a safety valve. 3, work; in the work process, because the working cylinder acting. Pressure will be reduced, so be ready to shake the handle, maintain the desired working pressure, until the end of the work. 4. Uninstall: pump work is completed, the pressure needs to be reduced to zero. Open unloader valve, oil reservoir back into the tube, complete the uninstall job. Oil-filled, boost, work process is actually inseparable. As long as you can move the handle. SBD20D hand pumps, hand pumps, hydraulic power provided by the Texas Lu Lu force hydraulic machinery plant. Texas Lu force hydraulic machinery plant (www.luliyeya.com) strong, credible, in Dezhou hydraulic machinery and components industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Lu Hydraulic and you hand into the brilliant, for a better future!