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Abstract
In the diesel generator, the fuel injector is a very important part. A good fuel supply and speed control system is inevitable, Cummins injector is recommended. This paper will elaborate on the inspection of the Cummins injector.
In this process, you need to use the tools: a clean container or cloth, with copper pliers, vice, clean diesel, brush, wire brush, 1.7mm steel wire, drill, probe, pressure gauge, hand pump, white paper several.

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First, if you want to inspect the Cummins injector in your diesel generator, you need to remove the injector.
The disassembly process is divided into three steps.
First, you need to wipe the diesel around the joint, in the process of wiping, you need the main Cummins injector's original installation method and order, to avoid installation errors, resulting in your Cummins injector not working.

Second, you need to prepare a clean container or cloth, and then remove the high-pressure oil pipe return the oil pipe, and put it into the prepared container in advance to avoid dust or dirt entering and blocking the pipe.

Third, remove the Cummins injector. You do not need to disassemble the parts in a hurry, it is necessary to test the Cummins injector first. If the Cummins injector is found to be working poorly during the test, it is not too late for you to disassemble its parts for inspection.

To test the tightness of the injector nozzle, you need to use a hand pump. When the pressure of the pump gauge is less than 156kpa, press the hand pump at a constant speed 10 times per minute until the oil is sprayed.
At this time, you need to observe the spray nozzle of the oil, the nozzle should not leak phenomenon, and the spray hole allows a trace of moisture, but can not drop oil. If you find dripping oil, it means that the cone of your Cummins injector is poorly sealed, and you need to clean the nozzle again for testing.

For the test of injection pressure, you need to test on the test bench. Use the handle to press the oil and observe whether the injection pressure is consistent with the instructions. If the pressure is low, you need to turn the tension nut, turn the pressure regulator screw downward, and increase the pressure of the pressure regulator spring to increase the pressure of the oil injection. If the pressure is high, the reverse is true. The injection pressure of each injection nozzle of the multi-cylinder diesel generator should be consistent.

Conclusion of Cummins injector inspection
The inspection of the Cummins injector is very important, and although the steps are cumbersome, you still need to be careful. If you need Cummins injector, you can contact us and we will provide you with quality guaranteed products and services.Read more