The function of the fuel transfer pump is to ensure that diesel circulates in the low-pressure oil circuit and can supply a sufficient amount and a certain pressure of fuel to the pump. Its fuel delivery volume should be 3-4 times the maximum fuel injection volume at full load. Therefore, before starting the diesel generator set, use the hand pump on the oil pump to exhaust the air in the oil circuit, so that it can smoothly suck up the fuel within 1 meter below the oil pump base within 0.5 minutes. After the air in the pump oil is discharged, tighten the handle nut. After long-term use, the parts of the oil pump should also be inspected. So, what are the precautions to pay attention to when inspecting?

If there is wear, depression, or pitting on the surface of the one-way valve, use grinding paste to grind it on the flat plate. If it is severe, it should be replaced with a new one.

When the surface of the one-way valve seat on the housing is severely worn or uneven, it should be replaced.

3. If the wear of the top rod and the top rod sleeve is severe, resulting in an increase in gap, poor sealing, and severe diesel leakage, it is necessary to replace it with the housing or choose to equip it with a larger scale top rod, but it needs to be studied through mutual research.

4. The coarse filter core inside the oil inlet pipe joint, as well as the simple cotton like debris blocking it, affects fuel supply. Therefore, it is important to pay attention to cleaning the fuel and removing dirt from the filter core frequently.

When the rubber ring of the hand oil pump piston is damaged, it should be replaced in a timely manner. After the assembly of the center of gravity of the oil pump, it is requested that the piston and push rod of the oil pump should move outstandingly throughout the entire stroke, and there should be no obstruction or jamming. The pressure handle oil pump should be lightweight and sensitive. When installing the one-way valve spring, it is important to note that the one-way valve spring needs to be accurately embedded in the spring groove.

It can be seen from this that the inspection of the oil transfer pump of diesel generator sets is very important. When using diesel generator sets, the inspection and protection of the oil transfer pump are often ignored. Originally, the oil transfer pump is a major component of the generator. In order to ensure the long-term use of the generator, it is necessary to inspect and protect it frequently. The parts of the oil transfer pump also need to be carefully inspected in order to extend the service life of the diesel generator set.

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