缸体明显的渗漏一般在使用时目测就能发现，细小的裂纹不易发现时可用浸油法检查，即先将缸体清洗干净，待干燥后用浸透煤油的棉纱在被测部位内部擦除，漏油部位会很快渗出煤油，如果外侧涂上白粉（或红粉），裂纹部位的大小和形状会更加明显。另外，也可用水压法检查，即将缸 The obvious leakage of the cylinder body is usually visually observed when it is used. When a small crack is not easily found, it can be inspected by immersion method, that is, the cylinder body is cleaned first, and then the cotton yarn soaked in kerosene is erashed inside the measured part after being dried , The oil leakage will quickly exudes kerosene, if the outside coated with white powder (or pink), the size and shape of the crack site will be more obvious. In addition, hydraulic pressure can also be used to check, about to cylinder