1. The engine is hot, but the coolant is not reduced

大型混凝土攪拌機(jī)過熱，但是冷卻系統(tǒng)工作正常，這時(shí)應(yīng)保持發(fā)動(dòng)機(jī)怠速運(yùn)轉(zhuǎn)，嚴(yán)禁熄火，用冷水澆散熱器表面加速降溫，在溫度下降到50度左右的時(shí)候，用濕毛巾旋開水箱蓋，進(jìn)行降溫，然后一定要檢查油尺刻度是否在正常范圍內(nèi)。

The large concrete mixer is overheated, but the cooling system works normally. At this time, the engine should be kept idling. It is strictly forbidden to turn off the engine. Pour cold water on the surface of the radiator to speed up the cooling. When the temperature drops to about 50 degrees, loosen the water tank cover with a wet towel to cool down. Then be sure to check whether the oil dipstick scale is within the normal range.

2. 發(fā)動(dòng)機(jī)水溫過高，冷卻系統(tǒng)循環(huán)出現(xiàn)故障

2. The engine water temperature is too high, and the cooling system circulation fails

大型混凝土攪拌機(jī)，發(fā)動(dòng)機(jī)水溫過高，冷卻系統(tǒng)循環(huán)出現(xiàn)故障的原因有很多，比如節(jié)溫器，冷卻硅油風(fēng)扇，風(fēng)扇皮帶等損壞導(dǎo)致冷卻系統(tǒng)無(wú)法正常工作。首先要保持發(fā)動(dòng)機(jī)怠速狀態(tài)，用冷水給散熱器降溫，在發(fā)動(dòng)機(jī)溫度降到80度以下時(shí)，采取間斷熄火，踩下熄火開關(guān)或者拔掉電噴系統(tǒng)傳感器，用起動(dòng)機(jī)帶動(dòng)發(fā)動(dòng)機(jī)運(yùn)轉(zhuǎn)，10-15秒為一個(gè)運(yùn)轉(zhuǎn)周期，本棟運(yùn)轉(zhuǎn)降溫，檢查機(jī)油尺刻度是否在正常范圍內(nèi)。

For large concrete mixer, the engine water temperature is too high, and there are many reasons for the failure of the cooling system cycle, such as thermostat, cooling silicone oil fan, fan belt and other damage, resulting in the cooling system can not work normally. First of all, keep the engine idling and cool the radiator with cold water. When the engine temperature drops below 80 ℃, stop the engine intermittently, step on the flameout switch or unplug the sensor of the EFI system, and use the starter to drive the engine to run. 10-15 seconds is an operation cycle to cool the building. Finally, check whether the oil dipstick scale is within the normal range.

3. 冷卻液發(fā)生遺漏或者散失，發(fā)動(dòng)機(jī)冷卻系統(tǒng)處于干燒狀態(tài)

3. The coolant is missing or lost, and the engine cooling system is in dry burning state

大型混凝土攪拌機(jī)發(fā)動(dòng)機(jī)在沒有冷卻液狀態(tài)下運(yùn)轉(zhuǎn)，尤其是在夏天，是會(huì)造成嚴(yán)重事故的，這時(shí)采用任何冷卻水澆散熱器的方式降溫都是無(wú)效的，發(fā)動(dòng)機(jī)運(yùn)轉(zhuǎn)也無(wú)法散熱。此時(shí)在發(fā)動(dòng)機(jī)怠速狀態(tài)下，打開機(jī)油加注口，迅速加注潤(rùn)滑油，這主要是因?yàn)樵趶氐兹彼疇顟B(tài)下，發(fā)動(dòng)機(jī)潤(rùn)滑油會(huì)隨之大量高溫蒸發(fā)，必須迅速補(bǔ)充。

Large concrete mixer engine running without coolant, especially in summer, will cause serious accidents. At this time, it is invalid to use any way of cooling water pouring radiator to cool down, and the engine running can not dissipate heat. At this time, in the idle state of the engine, open the oil filler and quickly fill the lubricating oil. This is mainly because in the state of complete water shortage, the engine lubricating oil will evaporate with a large amount of high temperature and must be quickly replenished.

加完潤(rùn)滑油后必須熄火，采取任意辦法讓發(fā)動(dòng)機(jī)熄火斷油，同時(shí)運(yùn)轉(zhuǎn)啟動(dòng)機(jī)，被動(dòng)運(yùn)轉(zhuǎn)發(fā)動(dòng)機(jī)，可持續(xù)10秒運(yùn)轉(zhuǎn)，間隔5秒停頓，保持此頻率。寧可損壞一個(gè)啟動(dòng)機(jī)，也要保住發(fā)動(dòng)機(jī)，zui大程度避免粘缸、拉缸等嚴(yán)重事故?；炷翑嚢柢噧r(jià)格適中，利潤(rùn)可觀，值得考慮，但是對(duì)大型混凝土攪拌機(jī)的常見故障的解決辦法也要了解，這樣在出現(xiàn)問題時(shí)才能冷靜處理。

After adding lubricating oil, the engine must be shut down. Take any method to shut down the engine and cut off the oil. At the same time, run the starter and run the engine passively. It can last for 10 seconds and stop at an interval of 5 seconds to maintain this frequency. It is better to damage a starter than to keep the engine. To a large extent, serious accidents such as cylinder sticking and cylinder pulling should be avoided. The price of concrete mixer is moderate and the profit is considerable, which is worth considering. However, the solutions to the common faults of large concrete mixer should also be understood, so as to deal with the problems calmly.