Yongkang City Hardware Electrical and Mechanical Services Department of wholesale sand rain to remind everyone the main pump displacement control and electronically controlled hydraulic control of two states. Next, as we analyze the state of ordinary hydraulic motor, can look meets your thoughts. Changes associated with displacement-controlled hydraulic pump oil flow signal is a former general motor frequency, the pump oil flow and pilot oil and negative flow, which pumps oil flow before and after the direct control of the pump, the pilot oil after the electro-proportional control valve throttling the pump We can call it a pilot secondary pressure. We'll pump control as an example to analyze changes in emissions below. Pay particular attention to the role of the primary piston has a primary pilot pressure, the secondary piston movement is controlled only by the negative flow. Yongkang City Hardware Electrical and Mechanical Services Department of wholesale rain sand pump is one of the major manufacturers, strong technical force, advanced technology and production equipment. Many times the pump will suck no water to produce this problem occurs because the body has an air pump or air inlet area, or the bottom valve closed lax irrigation water discontent, vacuum packing serious leak, valve or shoot the door closed lax. Yongkang City Hardware Electrical and Mechanical Services Department of wholesale rain sand back you solve: first pressure up, then pump filled with water, and then turn it on. Also check whether the tight check valve, pipe, fittings without leakage phenomenon, if found to leak, demolished in the joints painted oil or blending paint, and tighten the screws. Check the pump shaft seal rings, such as badly worn should be replaced with new parts. Pipeline leak or leak, possibly installing nut Undertightening. If the leak is not serious TECO general motors, can leak or leaks in places smear cement, or coated with asphalt oil mixing the grout. Temporary repairs can put some wet mud or soft soap. If the leaks in the joints, you can use a wrench to tighten the nut, such as severe water must be re disassembly, replacement crack pipe; reduce lift, the pump nozzle pressed into the underwater 0.5m. Yongkang City Hardware Electrical and Mechanical Services Department of wholesale rain sand with more high-quality, timely and efficient service, to be pioneers, dedication and hard work, to enable enterprises to rapidly develop normal motor price, will follow their consistent commitment to quality, service and commitment credibility of commitment to customer satisfaction as our highest pursuit! Ordinary motor repair, sand rain electromechanical efficient service (certified), Hebei General Motors provided by the Electrical and Mechanical Hardware Yongkang City Department of wholesale sand rain. Yongkang City Hardware Electrical and Mechanical Services Department of wholesale sand rain (www.cnsyjd.com) is an industry leader in Jinhua, Zhejiang, reducer, gearbox, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customers needs. Rain in the sand electromechanical leadership with the staff warmly welcome all inquiries negotiations to create sand rain electromechanical a better future.