Double-acting hydraulic hand pumps _ Lu Hydraulic (certified) _ hydraulic hand pump provided by Lu of hydraulic equipment plant in Texas. Texas Lu force hydraulic machinery plant (www.luliyeya.com) is specialized in "jacks, electric pumps, hand pumps, cylinders," the enterprise, the company of "honesty, hard service" concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Lu Jingli. How to prevent hydraulic hand pump glitches when using hydraulic hand pump or the installation process will use some common fault of high pressure hydraulic hand pump, if these common faults that you know in advance, then the installation will be able to advance again, is prevented, This hydraulic hand pump installation, use is definitely a good thing, today small to put these common problems you summed up: According to the season to add or replace grades of oil to meet the requirements of the provisions of the oil surface of the hydraulic hand pump manufacturers, remove foreign body inside the tubing, tighten the bolt or nut joints; hydraulic hand pump replacement of aging or damaged oil seal or "O" ring gasket; slight hydraulic hand pump when to replace worn gear pump or pump bushings, wear In the flat end mill will be smooth. Its roughness tolerance 0.03mm; the sleeve on the end face of the hydraulic hand pump below the plane (normal less than 2.5 ~ 2.6mm), such as ultra-poor should be added in the next 0.1 ~ 0.2mm copper sleeve to compensate for installation When put into the rear axle should be set in; unloading pieces and seal ring must be installed in the inlet chamber, two sleeves in order to maintain balance. Unloading film seal ring should have a preload amount of 0.5mm; the guide wire should be able to simultaneously stretch the upper, lower sleeve toward the rotational direction of the driven gear is twisted by a small angle, so that the main, two driven gear sleeve machining plane close fit; 1. Before the test pump to start using the parts should be carefully checked whether the connection tighten hydraulic hand pump, pressure gauge is normal, access to water is installed, this pump is working medium is 5 ~ 50 ℃ [1] of water, emulsion or kinematic viscosity < 45mm2 / s of oil. Prohibit the use of contaminated sediment and other debris in the dirty water. 2. In order to improve the efficiency of the pressure test, can be tested first container filled with water or equipment first, followed by test pump outlet pipe. 3. In the pressure test process, if found how the amount of water the air can be screwed open the valve, the air let go. 4. In the course of the test pressure If there is any minor leakages should immediately stop work for inspection and repair of imported hydraulic hand pump is prohibited under water seepage pressures continue to increase. 5. After the pressure test is completed, the first loose open valve, pressure drop, so as not to damage the gauge. 6. Test pump when not in use, should be exhausted within the water pump, inhaling a small amount of oil to prevent corrosion.