why excavator start to release pressure and exhaust under the sudden condition?

　　Even through the total air pressure of excavator machine is not match with the limiting requirement, but the excavator machine is start to release pressure and air exhaust yet, professional famous brands China bucket tooth pin production supplier said there has two different reasons lead to this abnormal phenomenon, the first reason is because of the air leakage problem for pressure regulating film part, the second reason is because of the breakage problem for pressure regulating valve inner spring, or the spring part has a too loosen degree.

　　Under the low air pressure state, professional famous brands China bucket tooth pin production supplier said the thimble would be pushed and lead to the continue air leakage problem for the small holes on the pressure regulating valve cover body, but makes the entirety system air pressure become lower and lower.

　　Professional famous brands China bucket tooth pin production supplier suggests users tear down the screw part first, but regulate or replace a smaller spring part next, then regulate the large spring part at the last.