Why should diesel generators be maintained at intervals? Due to the long-term static state of the diesel generator set, various materials of the set will undergo complex chemical and physical changes with engine oil, cooling water, diesel oil, air, etc., which may lead to the following failures of the set.

1、水進入柴油機，由于空氣中水氣在溫度的變化發(fā)生冷凝現(xiàn)象，結(jié)成水珠掛附在油箱內(nèi)壁，流入柴油，致使柴油含水量超標，這樣的柴油進入發(fā)動機高壓油泵，會銹蝕耦合件柱塞，嚴重的會損壞機組，定期維護即有效可避免。

1. When water enters the diesel engine, due to the condensation of water and gas in the air at the temperature change, it forms water droplets to hang on the inner wall of the oil tank and flows into the diesel, resulting in the water content of the diesel exceeding the standard. Such diesel entering the engine high-pressure oil pump will rust the coupling plunger and seriously damage the engine set. Regular maintenance can be effectively avoided.

2、機油變質(zhì)，機油的保持期（二年）發(fā)動機的機油是機械潤滑作用，而機油也有一定的保持期，長時間存放，機油的物理化學性能會發(fā)生變化，造成機組工作時潤滑狀況惡化，容易引發(fā)機組零件損壞，所以潤滑油要定期更換。

2. The engine oil deteriorates and its retention period (two years) the engine oil acts as mechanical lubrication, and the engine oil also has a certain retention period. If it 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 of the unit during operation, which is easy to cause damage to the unit parts. Therefore, the lubricating oil should be replaced regularly.

3、三濾的更換周期

3. Replacement cycle of three filters

濾器是起到對柴油、機油或水過濾作用的，以防雜質(zhì)進入機體內(nèi)，而在柴油中油污、雜質(zhì)也是不可避免的存在，所以在機組運行過程中，過濾器就起到了重要作用，但同時這些油污或雜質(zhì)也就被沉積在濾網(wǎng)壁上而使濾器過濾能力下降，沉積過多，油路將無法通暢，這樣油機帶載運行時將會因油無法供給而休克，所以正常發(fā)電機組在使用過程中，我們建議：

The filter is used to filter diesel oil, engine oil or water to prevent impurities from entering the engine. Oil stains and impurities in diesel oil are also inevitable. Therefore, the filter plays an important role in the operation of the unit. At the same time, these oil stains or impurities are also deposited on the filter screen wall, which reduces the filtering capacity of the filter. If they are deposited too much, the oil circuit will not be smooth, In this way, the oil generator will be shocked due to the lack of oil supply during on load operation. Therefore, we suggest that during the use of normal generator units:

（1）常用機組每300小時更換三濾；

(1) Replace the three filters of common units every 300 hours;

（2）備用機組每一年更換三濾。

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

4、冷卻系統(tǒng)

4. Cooling system

水泵、水箱及輸水管道長時間未作清洗，使水循環(huán)不暢，冷卻效果下降，水管接頭是否良好、水箱、水道是否有漏水等，如果冷卻系統(tǒng)有故障，導致的后果有：

The water pump, water tank and water transmission pipeline have not been cleaned for a long time, resulting in poor water circulation, reduced cooling effect, whether the water pipe joints are in good condition, whether the water tank and water channel are leaking, etc. if the cooling system is faulty, the consequences are:

（1）冷卻效果不好而使機組內(nèi)水溫過高而停機。

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

（2）水箱漏水而使水箱內(nèi)水位下降，機組也會無法正常工作（為防止在冬季使用發(fā)電機時，水管凍結(jié)，我們建議在冷卻系統(tǒng)中安裝水加熱器）。

(2) If the water level in the water tank drops due to water leakage in the water tank, the unit will not work normally (in order to prevent the water pipe from freezing when the generator is used in winter, we recommend installing a water heater in the cooling system).

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