New Injector Nozzle Dlla142p1595 0433171974 for Fuel Injector 0445110273 0986435165 for Small Engine Parts

① Dismantling. Remove the clogged injector nozzle from the fuel supply system of the diesel engine, and disassemble the needle valve and needle valve body. Because the injectors sold by the company were clogged in batches, 20 clogged injectors were randomly selected for disassembly.
② Sampling. Use a brush to collect the metal impurities on the removed 20 injector nozzles and 20 needle valve bodies.
③Clean. Put the metal impurity blockage collected on the injector nozzle and needle valve body into a clean glass container, add "acetone solution", immerse the metal impurity blockage, and then clean it with an "ultrasonic cleaner" for 15 minutes to remove the metal Impurities. After removing the impurity clog, place on filter paper to dry.
④ Mosaic. Open the "metallographic mosaic machine" mold, put the cleaned and dried metal impurity plug into the mold, cover it with "metallographic mosaic material", then close the mold and press it tightly, and then open the "metallographic mosaic machine". Install the power supply of the machine, set the heating temperature (140±10) ℃, turn off the power after reaching the temperature and keep it warm for 20 minutes, then cool it naturally for 20 minutes, open the mold, and take out the sample inlaid with metal impurities.
⑤ Metallographic sample preparation. On the "metallographic sample polishing machine", "wool" or "velvet" is used as the polishing fabric to polish the sample polished by "metallographic sandpaper". Add "metallographic polishing agent" until the grinding surface blocked by metal impurities reaches a smooth mirror surface without scratches.