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In order to prevent the connecting rod bolts from being deformed or broken due to improper installation, the following points should be paid attention to during installation:
(1) Before installation, carefully conduct visual inspection and cleaning, and check the fit of bolts and nuts. There should be no jamming or loosening.
(2) The method of tightening the bolts and the size of the pre-tightening force should be carried out in accordance with the specifications of the diesel engine manual. Because the pre-tightening force is too large or too small, and the pre-tightening force of each bolt is uneven, the reliability of its work cannot be guaranteed. (Guide: Summarize the characteristics and application scope of locknuts)
(3) Do not change the relationship between the connecting rod bolt and its original assembly hole at will during maintenance. Because the connecting rod bolt and the assembly hole are transitional fits, you need to tap the bolts lightly with a small hammer. Random exchange will affect the matching relationship. Tightness and looseness affect the reliable operation of connecting rod bolts.
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