1. Random butter

黃油的主要功能是潤滑和密封。因此，維護人員有時會在維護工作期間填充小型兩頭忙的氣缸蓋墊圈，以提高機器柴油發動機的密封性能。但是這種方法確實是錯誤的。這是因為在氣缸蓋墊圈上涂油脂時，擰緊氣缸螺栓后，一部分油脂會流入氣缸中。高溫影響后，殘留在外部的潤滑脂在汽缸蓋墊圈，汽缸蓋和車身表面之間形成一定的間隙，從而降低了汽缸墊圈的原始密封性能。

The main function of butter is to lubricate and seal. Therefore, the maintenance personnel sometimes fill the small cylinder head gasket busy at both ends during the maintenance work to improve the sealing performance of the diesel engine. But this method is really wrong. This is because when grease is applied to the cylinder head gasket, part of the grease will flow into the cylinder after tightening the cylinder bolts. Under the influence of high temperature, the residual grease forms a certain gap between the cylinder head gasket, the cylinder head and the body surface, thus reducing the original sealing performance of the cylinder head gasket.

2.不要換油

Don't change the oil

小型兩頭忙在工程機械中起著特別重要的作用，許多修理工對此都非常重視。完全按照標準要求添加。但是，許多維修人員忘記檢查兩頭忙的油質并更換變質的油。簡單地添加發動機機油并長時間更換，將導致發動機的許多零件在潤滑不足的環境中運行，從而導致比平時更大的磨損。另外，在操作柴油發動機時，機油中還含有很多污垢，因此，如果不定期更換機油，極有可能發生

Small two busy in construction machinery plays a particularly important role, many repairmen attach great importance to this. It is added completely according to the standard requirements. However, many maintenance personnel forget to check the busy oil quality at both ends and replace the deteriorated oil. Simply adding engine oil and changing it for a long time will cause many parts of the engine to run in the environment of insufficient lubrication, resulting in greater wear than usual. In addition, in the operation of diesel engine, the oil also contains a lot of dirt, therefore, if the oil is not changed regularly, it is very likely to happen

3.無需將小型兩頭忙的缸套和活塞產品安裝結合在一起

3. There is no need to combine the small cylinder liner and piston products

許多維護人員認為，新產品需要作為維護的標準零件。因此，面對新的缸套或活塞產品時，通常會忽略某些尺寸。這通常會導致兩頭忙的缸套和活塞產品之間出現差異。如果較大的氣缸配備了最小的活塞，則兩者之間的間隙將變大，而壓縮力將變弱。

Many maintenance personnel believe that new products need to be used as standard parts for maintenance. Therefore, when facing new cylinder liner or piston products, some dimensions are usually ignored. This usually leads to a difference between the busy cylinder liner and piston products. If the larger cylinder is equipped with the smallest piston, the gap between the two will be larger and the compression force will be weaker.

4.小型兩頭忙使用明火加熱活塞

4. The small two ends are busy using open fire to heat the piston

小型兩頭忙的活塞銷的安裝過程必須首先加熱液壓小型兩頭忙的活塞并為其充電。為了方便起見，許多維護人員會在直射的陽光下對其進行加熱。但是，由于活塞各部分的壁厚不均勻，直接火焰加熱會引起不均勻加熱并最終變形。因此，正確的加熱方法是用熱油加熱活塞。

During the installation process of the small piston pin with two busy ends, the hydraulic small piston with two busy ends must be heated and charged first. For convenience, many maintenance personnel will heat it in direct sunlight. However, due to the uneven wall thickness of each part of the piston, direct flame heating will cause uneven heating and eventually deformation. Therefore, the correct heating method is to heat the piston with hot oil.