Diesel Injector Fuel Injector 0445120372 Bosch for Yuchai Machinery YC4S

The complete set of PBKH developed by the all-Soviet Railway Transportation Research Institute includes all the necessary equipment for decomposingand repairing needle valves and nozzle bodies with high quality.

The needle valve lock cone in the nozzle is repaired with a cast iron abrasive in an alternating process of cone surface repair and abrasive correction. In this case, it is very important to ensure that the precision of the correction is very high, because it determines the quality of the repair site. Therefore, after each correction, the shape of the grinding tool and its position (runout) relative to the guiding cylinder should meet high requirements, which should not be lower than the corresponding geometric parameters of the lock cone to be repaired.

If the nozzle can use Suo mouth cone and needle valve body round grinding method of repair for many times, each other in the conical nozzle body repair section of the application of abrasive grinding without work before with higher peak shape work section of the big boss (8 ~ 10 um above).

This wear is characteristic of suona, a diesel suona of the A100, I50 and 6 C310IP models. The existence of this convex peak on the nozzle body cone is generally judged according to the mutual grinding of the needle valve cone (the width of the grinding mark is equal to the length of the nozzle body conical bus). If there is no such wear mark, the nozzle body locking cone can be repaired with a grinding paste.