防止空气进入液压系统的对策如下: (1)使用中应经常检查油箱的油量和油质,避免发生吸空和变质。(2)经常检查过滤器是否堵塞,避免油口压力过低。(3)在维修安装中,必须排除系统中的空气,应将吸油管及泵体注满油液,保持油管密封良好。(4)在液压缸和管道上部设置排气装置,以便放掉系统中的空气。 Countermeasures to prevent air from entering the hydraulic system are as follows: (1) The fuel oil quantity and oil quality of the fuel tank should always be checked during use to avoid the air suction and deterioration. (2) often check the filter is blocked, to avoid the port pressure is too low. (3) In maintenance and installation, the air in the system must be excluded. The oil suction pipe and pump body should be filled with oil to keep the oil pipe sealed well. (4) Exhaust devices are installed in the upper part of the hydraulic cylinder and the pipe to release the air in the system.