译文：
挖掘机气体控制阀的常见故障的原因： W4-60C型挖掘机制动气路系统中，在气泵和储气筒之间装有气体控制阀，其主要功能是分离压缩空气中油和水，过滤压缩空气中的赤尘和杂质，防止储气筒内压缩空气向气泵倒流，保证气体压力稳定在0.490-0.637MPa的范围内，{zg}压力不超过0.784MPa。使用中常出现以下故障： 1、调压阀因凋压膜片损坏而漏气 调压膜片6为橡胶制品，由于其频繁承受气压的反复冲压，反复进行拱曲、复位动作，受气体，水分的腐蚀，故常使膜片损坏，这是该控制阀最易出现的故障。膜片损坏后，从气泵来的压缩气体通过膜片进入调压阀上部，而不进入储气筒内，致使储气筒气压升不上去。此时调压阀温度易升高，制动系统气压表则显示气压不足，调压阀处可听见漏气声音。 2、控制阀壳体破裂 该阀壳体由上、中、下三部分组成，分别用螺钉连接。由于壳体由铝材制成，在分解或结合时，若拆、装螺钉方法不当，易使壳体破裂。故障在拆、装螺钉时，应按对角并分多次拧紧或拧松，使壳体按合面上的受力绐终保持一致，防止因受力不均而损坏。

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原文：
Excavator gas control valve common causes of failure: Excavator W4-60C pneumatic braking system, the air pump, and fitted between the gas cylinder Valve, its main function is separation of compressed air Oil and water, filtered compressed air in the Red Dust and impurities, prevent gas cylinder back to pump compressed air to ensure stable gas pressure in the 0.490-0.637MPa within a maximum pressure of not more than 0.784MPa. Failure to use often the following: 1, the dump valve damage due to leakage wither laminated film 6 for the rubber diaphragm pressure regulator, pressure to bear because of its frequently repeated punching, repeated hog, reset action, by the gas, water erosion, Guchang damage the diaphragm, which is most vulnerable to the control valve malfunction. Membrane damage in the compressed gas from the pump to the upper part of the patch enter the regulators, rather than enter the gas cylinder, causing cylinder pressure rise does not go up. At this point easy to increase the temperature regulating valve, brake system pressure gauge shows the pressure enough, regulators Department can hear the sound leakage. 2, control valve shell rupture The valve housing by the upper, middle and lower three parts, each with screw connection. As the shell is made from the aluminum, or a combination of the decomposition, if removed, to improper installation screws, easy to shell rupture. Failure in the demolition, installation screws, the number should be diagonal and sub-tightening or loosening, so that the surface of the shell by the force co-driven by a coherent line, both to prevent damage due to Shouli Bu.