A sweeping method that causes the diesel generator to work abnormally due to a problem with the main bearing of the main engine:
When the skill repairer discriminates this problem, the screwdriver can be placed on the two sides of the main bearing adjacent to the main body of the machine for percussion comparison to determine the larger main bearing of the knocking sound. When it is determined that the main bearing does have a loud sound, the oil pan and the lower main bearing lower cover can be removed.
If the bearing is found to have a burnt appearance, it is necessary to replace it; when the journal is also strained or otherwise damaged, the crankshaft should be removed for repair or replacement.
Sometimes the generator will behave abnormally during the working process. These abnormal sounds cannot be neglected. Due to the long-term use in the fault, the machine will be damaged or even damaged.
The cleaning method of the connecting rod bearing causes the unit to work abnormally:
The person who repairs the diesel generator set can use the single-cylinder oil cut method to determine which cylinder connecting rod bearing exhibits a knocking sound. The application method: after starting the diesel generator set, the fuel pump cover plate is opened, and the moving roller body parts are respectively picked up by the screwdriver to determine the sound change of the rod bearing of each cylinder. If the sound is weakened or not seen when a cylinder is disconnected from the oil supply, after the oil supply is recovered, it is suddenly slammed into the h, and when it is "sounding, it is clear that there is a problem with the connecting rod bearing of the cylinder.
After the above method determines which cylinder is faulty, stop the unit work, remove the cover of the body inspection hole, and remove the lower cover of the connecting rod with a torque wrench for inspection. If the bearing alloy is severely worn, dropped or burned, the bearing bush should be replaced. If the outer surface of the journal has mild damage, napped or corroded appearance, it can be repaired with a setback.
The above are some ways to supply some noise to the generator set.
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