1. Unqualified quality of paper cushions, such as insufficient thickness, improper storage, wrinkle deformation, or inadvertent cleaning and dust contamination during assembling, are the causes of oil leakage.
2. Excessive oil pressure also causes oil leakage of static joint surface.
3. The quality of the static joint surface is mainly determined by the accuracy of the processing equipment itself and the storage and transportation conditions. If the equipment has high precision, the flatness and roughness of the static joint surface can reach the drawing design request, and pay attention to avoid bumping during storage and transportation, it is not difficult to reach the complete seal of the static joint surface. However, due to the low accuracy of equipment and technology of some manufacturers, the storage and transportation conditions and management level can not guarantee the complete non-knock scratch.
4. Poor operation skills in maintenance and maintenance. At present, diesel generating units are mainly self-repairing. Because the repair technology is not up to date, self-repairing often presents such or such problems, especially when disassembling and assembling machines, they do not pay attention to methods, and there are few special tools, which cause parts to be deformed and even damaged. Oil leakage is caused by deformation of parts. At present, the common disassembly method is to install bolts on the main bearing seat cover, screw them into the diagonal disassembly screw hole of the main bearing seat cover, and eject the main bearing seat cover. It is difficult to synchronize the progress of the two bolts in the process of disassembly and assembly, which is the main reason for the deformation of the main bearing seat cover.