Nozzle Damage of Caterpillar Injector 0R-0471/0R0471 Causes Abnormal Noise

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Nozzle Damage of Caterpillar Injector 0R-0471/0R0471 Causes Abnormal Noise

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Nozzle Damage of Caterpillar Injector 0R-0471/0R0471 Causes Abnormal Noise

A construction site in Hubei reported that a Caterpillar bulldozer equipped with 0R-0471 (universal number 0R0471) diesel injectors had abnormal noise during operation, and the noise was accompanied by engine vibration. The maintenance team carried out fault diagnosis and treatment.

The maintenance technicians used a stethoscope to listen to the working sound of the injectors and found that the noise came from the 0R-0471 injectors. After disassembling the injectors, it was found that the nozzle was damaged, the nozzle holes were deformed, and the fuel injection was uneven, leading to abnormal combustion and noise. The reason for the nozzle damage was that the bulldozer hit a hard object during operation, causing the nozzle to be impacted and damaged.

The maintenance team replaced the damaged nozzle of the 0R-0471 injectors with an original part, and adjusted the injection parameters. After reassembly, the abnormal noise and vibration were eliminated, and the bulldozer resumed normal operation. The maintenance experts reminded that when using Caterpillar 0R-0471 and 0R0471 injectors, attention should be paid to avoiding impact damage, and the nozzle should be checked regularly for damage.

Pub Time : 2026-04-20 18:42:37 >> News list

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