After investigation, we found that many diesel generators neglect the maintenance of the oil pump during use. In fact, the oil pump is an important part of the generator. In order to ensure the long-term durability of the generator, users should pay attention to the following issues :

1. Before installing the oil transfer pump of the generator set, check whether the model and specification are correct, and remove the anti-rust oil. The thickness of the gasket should be appropriate. In order to prevent the piston from being pushed dead or running out of place, the gasket should be prevented from being too thin or too thick. Thick, the tightening torque should be uniform when tightening the bolts to prevent damage to the oil pump.

2. If there is a rubber sealing device between the hand oil pump piston and the hand oil pump body on the oil transfer pump, do not disassemble it at will. If the rubber ring is damaged, it should be replaced in time.

3. The coarse filter core in the oil pump joint is easily blocked by dirt such as cotton wool. It should be checked and cleaned frequently, and the damaged filter must be repaired or replaced in time.

4. Make sure that the sealing gaskets around the oil pump of the generator set are intact, and the plastic ring should not be disassembled too many times, and should be replaced regularly.

5. Ensure that the elasticity of the "four springs" of the plunger oil pump is normal. "Four springs" are piston springs, tappet (roller) springs, oil inlet valve springs, and oil outlet valve springs. If the elasticity of the springs is weakened or broken, they should be replaced or adjusted in time to avoid damage to the generator set.

6. The hand oil pump of the generator set must be pressed back after use, and the button must be tightened at the same time to prevent the hand oil pump and the rubber ring or the ball valve and the valve seat from causing air intake or oil leakage due to insufficient pressure.

7. The filled generator set oil should be filtered by precipitation to ensure cleanliness and prevent the wear of the oil inlet valve, oil outlet valve and valve seat of the oil transfer pump due to excessive impurities. Sometimes the oil valve may even be padded by impurities and fail.