What should I pay attention to when assembling injectors?

1. During the entire assembly process, the parts cleaning must be guaranteed, especially the sealing of the injection nozzle body and the end face of the injector body, even if the small buttons are also caused by the sliding block and the contact surface of the part. Poor sealing. The injector tight sleeve and the injection nozzle are required to be smooth and smooth, and it is not allowed to have carbon or burrs. Otherwise, it will affect the coaxial degree and verticality of the injector nozzle installed, thereby causing the sliding property of the injector bad.
2, when assembled, first prior to pre-equipped the oil supply pipe joint with the oil filter core, the tight copper washer reaches the seal without oil. Further, the regulating spring, the top rod is placed in the injector body, and the pressure regulation is rotated. The screw is until the contact chastic is reached, and then the nut is adjusted.
3, put the injector to the clipper on the tiger clamp, install the injector position, tighten the cap. The torque will cause deformation of the needle valve body, affect the sliding property of the needle valve; it will cause oil leakage.
4. The assembled injector assembly should be sealed on the test bench and adjust the injection opening pressure.
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