(1)quality The plane oil seal Before installation, carefully check the appearance of the oil seal according to the regulations. The edge and outer surface of the oil seal lip must be coated with clean oil, and a special tool should be used for press fitting. Make sure that the tool is perpendicular to the plane of the seat hole of the body, and the oil seal should be press-fitted to the seat hole evenly and orderly to avoid crooked or Excessive force may damage the oil seal.

　　(2)quality The plane oil seal When measuring the diameter of the oil seal edge, it is not necessary to remove the spring, and carefully arrange the oil seal by hand to make the inner ring as flat as possible. You can measure several positions and take the average value.

　　(3) There should be no burrs, sharp edges, etc. on the journal or the chamfer of the seat hole matched with the oil seal.

　　(4) When overhauling the body, it is necessary to install new shaft parts, pay attention to whether the oil seal spring is in good condition.

　　(5)quality The plane oil seal For the overhauled engine, in principle, all the oil seals on the body should be replaced. The aging of the oil seal is difficult to distinguish with the naked eye. It is a wise move to replace all the oil seals when the engine is overhauled.

　　(6) In actual use, if the lubricating oil is too much, insufficient or too thin, the sealing performance of the oil seal will decrease, and the lubricating oil will leak if the lubricating oil is too thin. , and replace it regularly.

　　(7) When installing the quality The plane oil seal, be sure to pay attention to its front and rear position and installation direction. The oil seal and the seat hole are in an interference fit. In addition, the mechanical strength of the rubber is very low, and it is easy to damage the outer circle of the oil seal. Therefore, the installation When aligning the seat hole, put it straight, and then push it in. Do not hit hard if you don't put it straight.

　　(8) It is sometimes difficult to judge the oil leakage at the lip and outer circle of the oil seal.