What should the correct maintenance of fuel injection pump start from? Pump manufacturers for everyone to introduce it:

Injection pump is one of the most important parts of diesel engine fuel supply system. Therefore, the correct maintenance method must be applied to ensure that the efficiency of the injection pump can be fully played.

The first step of fuel pump maintenance is to ensure the cleanliness and quality of oil. Generally speaking, due to the characteristics of diesel fuel supply system and the form of combustible mixture, it has high requirements for oil. When starting the diesel engine, the quantity and quality of the oil in the injection pump should be checked to ensure that the oil is sufficient and of good quality.

At the same time, according to the quality of the oil timely replacement, replacement do not forget to thoroughly clean the oil pool, the bottom of the oil pool sludge and other impurities clean, or may cause a series of adverse consequences.

Secondly, the oil supply advance Angle and oil supply interval Angle of the injection pump should be checked regularly, so as to avoid the consequences of difficult starting, insufficient power and unstable operation of the diesel engine. And regularly check the sealing of the oil valve, such as the cylinder sealing bad phenomenon, should be thoroughly maintained, replacement parts.

If it is found that the diesel engine is difficult to start, the power is decreased and the fuel consumption is increased, it can be improved by adjusting the fuel injection pump and injector. However, if the situation is not improved, the plunger pair of the fuel injection pump and the oil output valve accessories should be dismantled and inspected to replace the damaged parts.

Due to the compressibility of diesel oil and the elasticity of high-pressure oil pipe, high-pressure diesel oil will cause pressure fluctuation in the oil supply process of injection pump. The length and diameter of the high pressure oil pipe are determined by calculation in order to ensure that the oil supply interval Angle of each cylinder is consistent, the oil supply quantity is uniform and the diesel engine works smoothly.

In addition, the accessories of the injection pump should also be properly maintained, including the side cover, oil ruler, fuel plug, oil spill valve, oil pool screw plug, oil flat screw, oil pump fixing bolt, etc., at least ensure that they are intact, and timely repair or replace if they are damaged or lost.