Long-term storage of diesel engines and initial startup precautions after long-term storage
Long-term storage of the engine can cause oxidative deterioration of the oil and fuel, produce a gelatinous substance, block the fuel system and the lubrication system. Long-term storage Due to gravity, fuel and lubricating oil will return to the lower position of the engine, causing some oil circuits and parts to be in non-fuel or lubricating oil immersion.
For the first time after storage for a long time, it is necessary to check whether the fuel and lubricating oil used in the engine have deteriorated or mixed with impurities and moisture. If the fuel oil deteriorates or mixes with moisture and other impurities, it is necessary to replace the required fuel and lubricant. Try to replace the deteriorated oil in the engine oil circuit with qualified oil. Replace the fuel filter and the oil filter at the same time. It is best to start the engine once a week if conditions permit, and run idling for 3-5 minutes. To ensure that the engine is always in good condition.
The long-term storage of the engine without any maintenance measures, the danger of sudden start. After long-term storage, the fuel and lubricating oil in the engine oil circuit will oxidize and deteriorate. All indicators of lubricating oil will decrease, and the lubricating oil at the top of the lubricating oil passage of the engine will return to the oil sump under the action of gravity. The location where local lubrication is required is not lubricated. Such as exhaust turbocharger bearings, high pressure oil pump cam tappets, etc. Sudden start of the engine can cause damage to the supercharger and high pressure oil pump. If the water content in the fuel is high, plus long-term non-operation. The water in the fuel will corrode the engine oil circuit, especially the three more precise parts (injector coupler, fuel injection pump outlet valve coupler, fuel injection pump plunger coupler), causing the engine to emit black smoke. In severe cases, the fuel injection pump plunger is stuck, and the fuel injection pump oil supply adjustment rack cannot be normally driven by the speed governing mechanism and is stuck, resulting in serious consequences such as the engine failing to start or overspeeding.
It is hoped that the unit manufacturers and users can reasonably store the maintenance and maintenance engine to keep the engine in good working condition. In order to use the engine to start the engine safely and harmlessly for production activities. Note: The engine is not ready to run for the first time.
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