The pump maintenance once a year. Clean all parts with kerosene, to protect the mating surface high and low double gear pump models, one shall be arbitrarily high and low voltage bump double gear pump brand, after assembly, all moving parts should be flexible movement, no local jamming. Remedy 1 Adjust the safety valve. 2 Check the cone valve or valve replacement or repair three fastening tabs or replace the seals 4 Check high and low pressure gauges overhaul gauges seat double gear pump manufacturers | Chaoyang City High Low double gear pump | Texas aerospace hydraulic from Dezhou City aerospace hydraulic machinery plant available. Dezhou City aerospace hydraulic machinery plant (www.sdhtyeya.com) strong, credible, in Dezhou hydraulic equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the Texas Aerospace Hydraulic and you hand into the brilliant, for a better future!