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Do you know the maintenance procedures for diesel generators?


Diesel generator sets are limited to the following maintenance methods:
Inspection of the four leakage phenomena, surface, starting battery, oil and fuel of the unit;
Clean and improve the environment of the equipment room, and regularly replace the three filters;
Carry out no-load every month, and perform maintenance such as loading test machine every six months;
Use power monitoring to observe power quality parameters in real time.
A diesel generator is an independent power generation device that provides emergency power in the event of a power outage. In fact, most of the time, the unit is in the standby state, and the chances of actually putting it into use are relatively small. Usually, it is mostly based on test machines, and it lacks perfect detection and maintenance methods. But such emergency backup power is indispensable. How to ensure that the generator can supply power in a timely manner in an emergency when the generator is used less often, and the operation is safe and reliable. After the power failure, the generator can be stopped immediately.
First, check the battery pack. As the backup power is not often put into use, whether the generator can start normally depends on the maintenance of the battery. If there is a problem with the battery pack, the more common situation is that there is voltage and no current. At this time, the sound of the solenoid valve in the starter motor can be heard, but the shaft cannot be moved. There are three reasons for the battery pack to fail to stop. There are three reasons to stop charging the battery during the test, which will cause the battery to run out of power. 2. The mechanical oil pump is driven by a belt and the amount of oil pumped at the rated speed. However, the battery pack is insufficiently powered, which causes the spring leaf in the shut-off valve to stop from the four oil outlets due to the insufficient suction of the solenoid valve during shutdown. Fuel cannot be stopped. 3. Domestic batteries usually have a life of two years and are not replaced regularly.
Second, start the inspection of the solenoid valve. When the generator was running, people summed up a set of inspection methods of "one look, two listens, three touches, four smells". Listening at startup is the key step. Take the original American Cummins generator as an example, just press the start button, and it will start after three seconds. Two "clicks" can be heard within these three seconds. Once the second sound is not heard, it is necessary to check whether the start solenoid valve is working normally. Of course, if the solenoid coil is blown, the generator cannot start of course.
Third, the inspection of diesel and lubricating oil. Because the unit is in a static state for a long period of time, various materials of the unit itself will undergo complex chemical and physical changes with engine oil, cooling water, diesel, air, etc., and the unit will be "dead". For this reason, attention should be paid to the problem of oil. For fire safety, the diesel fuel tank is usually placed in a closed room. Due to the condensation of water vapor in the atmosphere due to temperature changes, water droplets are attached to the inner wall of the fuel tank and flow into the diesel. If such diesel enters the high-pressure oil pump of the diesel engine, it will rust the precision coupling, the plunger, and seriously damage the unit. Generator lubricating oil has a shelf life. When stored for a long time, the physical and chemical properties of the lubricating oil will change, which will cause the lubrication state of the unit to deteriorate during work and easily cause damage to generator parts.
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