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When calculating the scale of the oil scale, it is best to choose the flange face of the ruler tube. The reason why the flange is chosen as the measuring reference is that the ruler's position in the engine is completely determined by it.

image.png.44266ce966aadca358a9acc1baba30f2.png

(1) B is the length of the axis of the ruler. After the scale tube is arranged on the engine, it can be directly measured from the digital module.

(2) C is the length of the ruler tube inserted into the flange installation surface. The length is set according to the length of the ruler. If the condition is allowed, it is best to keep the ruler to protect the head of the ruler, so that the measuring head of the ruler is parallel to the wall of the ruler, and the scraping of the scale section of the ruler is reduced.

(3) D is the value from the flange surface to the maximum scale, corresponding to L1 in Figure 6. Similarly, the value from the flange surface to the minimum scale is L2.

It is easy to get the theoretical distance of the ruler: the distance between the handle of the ruler and the mouth of the ruler to the maximum level of the level of the level of the level of the oil level: AMAX=B-C+L1, the same, the distance between the yardstick and the ruler's pipe mouth to the minimum level of the level of the level of the oil level: AMIN=B-C+L2.

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