Then paver hydraulic repair Which is good, pump oil through b, 2,3,5 and 6 rows back to the tank and unloading, keeping only low pressure to balance the spring force on the slide valve. When the chamber pressure fell below the valve spring force, fell gradually close the valve, closing speed can be adjusted paver hydraulic service agencies through the throttle 8, in order to ensure adequate relief. Shut off the pump fell valve unloading hydraulic repair pathway paver how, cylinder chamber under increased pressure, the piston return to rise. To ensure reliable commutation of World War II (1941-1945) period, 30% use the pump in the US machine tool repair transmission. It should be noted, the development of hydraulic transmission than Japan and other countries in Europe and America for nearly 20 years later. After 1955 years, the rapid development of hydraulic transmission Japan, in 1956 established the "pump industry will be." Past 20 to 30 years, Japan hydraulic transmission repair fast development, a world leader. Paver hydraulic repair phone, Yan'an paver hydraulic repair, hydraulic repair Chengtong Xi'an Xi'an Chengtong hydraulic repair Limited. Xi'an Chengtong Hydraulic Maintenance Co. (www.huosu360.com) strong, credible, in Xi'an, industrial maintenance, installation and other industries has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the Xi'an-hydraulic service and you work through into the brilliant, for a better future!