1. Manual pump built-in dual pressure relief valve, built-in relief valve prevents the load free fall; 2, dual piston design, low pressure in load fast hard state, SBD20D immediately converted into high-pressure hand pump, shorten cycle time per job; 3, manual pump pressure is stable. Output flow, maximum pressure output of up to 4000bar (400Mpa), reaches a maximum working pressure handle only a small force; 4, tank seal to prevent leakage or ventilation in order to balance the pressure inside and outside the tank, the fuel tank cap seal acts like safety valve to prevent tank overpressure. To strengthen the hand pump hand pump maintenance measures to be taken in the course, because of improper use or normal wear and affect the life of vehicle tools used in daily use and therefore need to strengthen the maintenance! Here we asked the experts to talk about the use of a hand pump to pay attention to what: Hose temporary use of prone to aging, we need special attention, regular checks of periodic replacement. And around the plunger valve at each hand pumps may not have the presence of the dirt sbd20d hand pumps, the need for timely clean, clean the pump often insist ministries. The operator manual pump, strictly observe precautions for use. Manual pump working fluid is the kinematic viscosity of 20-28 centistokes, such as YB - N32 hydraulic oil. Do not use alcohol, water, glycerol, sesame oil, brake fluid, ordinary engine oil as the working fluid. The working fluid must 120--160 mesh oil filter mesh filter clean. You may not have bump phenomenon, lever to tighten and should be used gently, so as not to damage threaded. Non-spray coated with an outer layer of petroleum jelly, which can rust proofing when not in use. Dry, room temperature suitable for storage, should not boxed. sbd20d hand pumps | Ordos hand pumps | hydraulic force provided by the Texas Lu Lu of the 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!