Articles

What Faults May Be caused By Irregular Maintenance of Diesel Generator Set

by Dieselgenerator Tech ***

The diesel generator set is generally used as the emergency standby power supply after the power failure. Most of the time, the unit is in the standby state. Once the power failure occurs, the diesel generator set is required to start in an emergency and supply power in an emergency. Otherwise, the standby unit will be meaningless. However, because the generator is in a static state, all kinds of materials will be mixed with engine oil, cooling water, diesel oil, etc The complex chemical and physical changes of air may lead to the following faults of the unit, which may stop the unit:

1. Water enters the diesel engine.

Due to the condensation of water vapor in the air at the change of temperature, it forms water droplets to hang on the inner wall of the oil tank and flows into the diesel oil, resulting in the water content of the diesel oil exceeding the standard. If such diesel oil enters the engine high-pressure oil pump, it will rust the plunger of the precision coupling and seriously damage the unit. Regular maintenance can be effectively avoided.

2. Oil deterioration.

Retention period of engine oil (two years) the engine oil is mechanical lubrication, and the engine oil also has a certain retention period. If the engine oil is stored for a long time, the physical and chemical properties of the engine oil will change, resulting in the deterioration of the lubrication condition when the unit is working, which is easy to cause damage to the unit parts, so the lubricating oil should be replaced regularly.

3. Replacement cycle of three filters.

What Faults May Be caused By Irregular Maintenance of Diesel Generator Set

The filter is used to filter diesel oil, engine oil or water, so as to prevent impurities from entering the engine body. Oil and impurities in diesel oil are inevitable. Therefore, during the operation of the unit, the filter plays an important role. At the same time, these oil or impurities are deposited on the filter screen wall, which reduces the filtration capacity of the filter. If there is too much deposition, the oil passage will not be smooth, Therefore, during the normal operation of the generator set, Dingbo power suggests that:

(1) Three filters are replaced every 300 hours for common units.

(2) The three filters of standby unit shall be replaced every year.

4. Cooling system.

If the water pump, water tank and water pipeline have not been cleaned for a long time, the water circulation is not smooth, and the cooling effect is reduced. Check whether the water pipe joint is good, and whether the water tank and water channel have water leakage, etc.

(1) The cooling effect is not good and the water temperature in the unit is too high to shut down.

(2) The water level in the water tank will drop due to water leakage in the water tank, and the unit will not work normally (in order to prevent the water pipe from freezing when using the generator in winter, Dingbo Power suggests that it is better to install a water jacket heater in the cooling system).

5. Lubrication system, seals.

The lubricating oil has a certain corrosive effect on the rubber sealing ring. In addition, the oil seal itself is aging at any time, which reduces its sealing effect. Due to the chemical characteristics of lubricating oil or grease and the iron filings produced after mechanical wear, these not only reduce its lubricating effect, but also accelerate the damage of parts. At the same time, the lubricating oil has a certain corrosive effect on the rubber sealing ring, and the oil seal itself is aging at any time, which makes its sealing effect decline.

6. Fuel and valve system.

The output of engine power is mainly the fuel burning in the cylinder, and the fuel is ejected through the fuel injection nozzle, which makes the carbon deposit on the fuel injection nozzle after combustion. With the increase of deposition, the fuel injection quantity of the fuel injection nozzle will be affected to a certain extent, resulting in the inaccurate ignition advance angle of the fuel injection nozzle, the fuel injection quantity of each cylinder of the engine will be uneven, and the working state will be unstable, therefore, the regular cleaning of the fuel system, the replacement of filter components, the smooth supply of fuel, the adjustment of the valve system to make its ignition uniform.

To sum up, generator manufacturer --Dingbo Power reminds you that strengthening the regular maintenance of diesel generator set, especially preventive maintenance, is the most economical maintenance, which is the key to prolong the service life of diesel generator and reduce the use cost.

If you are interested in diesel generator, please contact us by email dingbo@dieselgeneratortech.com.


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About Dieselgenerator Tech Advanced    ***

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Joined APSense since, December 21st, 2021, From Nanning, China.

Created on Oct 3rd 2022 00:20. Viewed 62 times.

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