After the run-in and test the domestic market, the current high pressure hand pump completely adapted to the market demand, Texas Lu Lili manual pump, working pressure of 100 ~ 300Mpa; equipped with pressure relief valve to prevent pressure overload, manual pump Lu force hydraulic, also a safety relief valve in the pump; two flow design, level low pressure displacement 33CC, when two high-voltage displacement 1.6CC; to achieve a constant power conditions, low voltage and high oil flow, high pressure low oil flow, saving time and increasing efficiency. External dimensions of 585 * 120 * 170mm, with a total weight of about 11Kg oil nothing is immutable, as the manual pump design is the same, always in the same position will be eliminated, so we have to continue to study and improve ! (L) Improved manual pump design. After much argument, and finally the use of advanced load-sensing priority valve and hydraulic steering gear in the form of the new system in accordance with the steering request to assign priority traffic, regardless of load size, high and low speed steering wheel can ensure adequate oil supply, ssd1 manual pump, the remaining portion may all work equipment supply circuit use, thereby eliminating the steering circuit power loss caused by excessive supply, improve the system efficiency, Changchun hand pumps, reducing the hydraulic pressure of work. (2) optimization of design boom cylinder and hydraulic modeling, reduce system operating pressure. By optimizing computing boom cylinder standard series 80/4. Pump displacement by the 10ml / r increased to 14ml / r, the system set pressure of 14MPa, to meet the boom cylinder lifting force and speed requirements. (3) manual pump should also be noted in the course of the proper use and maintenance of loaders, regularly add or replace hydraulic oil, hydraulic oil to maintain cleanliness, strengthen the routine inspection and maintenance. Texas hand pumps, hydraulic power Lu Changchun hand pumps provided by the Texas Lu of the hydraulic machinery plant. Texas Lu force hydraulic machinery plant (www.luliyeya.com) is an industry leader in Shandong Dezhou, hydraulic machinery and parts, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Lu Hydraulic leadership with the staff warmly welcome all inquiries negotiations to create Lu Hydraulic better future.