Hydraulic hand pump glitch how to prevent hydraulic hand pump when used during installation or use some common faults, if these common faults you know in advance, so that you can advance to prevent the installation again, 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, remove the foreign body inside the tubing, tighten the joints bolts or nuts; replace the hydraulic hand pump aging or damaged oil seal or "O" ring gasket; hydraulic hand pump to replace worn gear pump or pump sleeve, slight wear at 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 EHV hand pumps, the installation should be put into the sleeve in the rear axle; 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 by a small angle of twist hand pump price, so that the main, two shafts driven gear sets machining plane snug fit and effect an improved manual pump, hand pump system design improvements. After much argument hand pump, and finally the use of advanced priority valve with load sensing hydraulic steering gear in the form of the new system in accordance with the requirements of the steering, assign priority traffic, regardless of load size, wheel speed level can ensure adequate oil supply, The remainder of the circuit can use all work equipment supply, eliminating excessive oil due to steering circuit caused by power loss, improve system efficiency and reduce the manual hydraulic pressure of work. 2, the optimal design of the boom cylinders and hydraulic modeling, reduce manual hydraulic system operating pressure. By optimizing the computing boom cylinder with standard series 80/4. 3, hand pump displacement by 10ml / r increased to 14ml / r specialized in manufacturing manual pump, the system set pressure of 14MPa, to meet the boom cylinder lifting force and speed requirements. 4. It should also be noted in the course of the proper use and maintenance of loaders, regularly add or replace hydraulic oil, manual hydraulic pump to maintain the cleanliness of hydraulic oil, strengthen routine inspection and maintenance. Manual pump price, quality speed hydraulic (certified), hand pump provided by Dezhou City mass-velocity hydraulic machinery factory. Dezhou City mass-velocity hydraulic machinery plant (www.dzzhisu.com) (www.dzzhisu.com) is a leader in Dezhou, hydraulic equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Speed ??hydraulic leadership in quality with the staff warmly welcome all inquiries negotiations to create a better quality speed hydraulic future. You can also access (www.dzzhisu.com/supply_details_47680370.html), for more information about the company.