In the early stage of the engine, the water temperature is very fast; when the water temperature gauge indicates 80, the heating rate slows down, it indicates that the thermostat is working normally. On the contrary, if the water temperature increases rapidly, when the internal pressure reaches a certain degree, the boiling water suddenly overflows, it indicates that the main valve is stuck and suddenly opens. When the water temperature gauge indicates 70 ℃ - 80 ℃, open the radiator cap and radiator drain switch, and feel the water temperature by hand. If both hands are tied, it means that the thermostat works normally; if the water temperature at the radiator water inlet is low, and there is no water outflow or little water flow at the inlet pipe of the radiator upper water chamber, it means that the main valve of the thermostat cannot be opened. If the thermostat is stuck or not closed tightly, it should be removed for cleaning or correction, and should not be used with mercy.
運(yùn)用溝通法，拆下發(fā)動機(jī)的空氣濾清器，假定此時(shí)混凝土攪拌車主張機(jī)排出的不是黑煙，那說明是空氣濾清器有嚴(yán)重的阻塞，應(yīng)消弭阻塞或許變換濾芯，變換新的濾芯效果非常好。因?yàn)榘l(fā)動機(jī)噴油泵和調(diào)速器調(diào)整不恰當(dāng)，使油嘴的噴油量太大，逾越了混凝土攪拌車發(fā)動機(jī)的每個循環(huán)噴油數(shù)量，或許是有對比嚴(yán)重的后滴油現(xiàn)象等，構(gòu)成供油量過大。
Using the communication method, remove the air filter of the engine. Assuming that the smoke emitted by the concrete mixer is not black smoke, it means that the air filter is seriously blocked. It is necessary to eliminate the blocking. Maybe it is very good to change the filter element and change the new filter element. Because the fuel injection pump and governor of the engine are not properly adjusted, the fuel injection quantity of the nozzle is too large, which exceeds the fuel injection quantity of each cycle of the concrete mixer engine. Maybe there is a serious phenomenon of post drip, which constitutes the excessive fuel supply.
在裝有渦輪增壓設(shè)備的混凝土攪拌車柴油機(jī)，應(yīng)按混凝土攪拌車修補(bǔ)守則上的渦輪增壓設(shè)備的缺陷確診辦法間斷確診與清掃，或選用置換法，即換用同類型的渦輪增壓器，若溝通后沒有黑色煙霧就能夠證明混凝土攪拌車柴油機(jī)冒黑煙是渦輪增壓器損壞所發(fā)作的。柴油是碳?xì)浠衔?，假定發(fā)動機(jī)在短少氧氣的條件下停息，簡單構(gòu)成停息不充分，不無缺，會導(dǎo)致部分沒有無缺停息的碳元素構(gòu)成游離碳，混入廢氣排出，導(dǎo)致發(fā)作了黑色的煙霧。
The diesel engine of the concrete mixer equipped with turbocharging equipment should be diagnosed and cleaned intermittently according to the defect diagnosis method of the turbocharging equipment in the repair code of the concrete mixer, or the replacement method should be selected, that is, the same type of turbocharger should be used. If there is no black smoke after communication, it can be proved that the black smoke of the diesel engine of the concrete mixer is caused by the damage of the turbocharger. Diesel is a hydrocarbon. Assuming that the engine stops under the condition of short oxygen, the simple composition of stopping is not sufficient, which will lead to the formation of free carbon by some carbon elements without stopping, which will be mixed into the exhaust gas and lead to black smoke.
翻開散熱器加水口蓋，若散熱器內(nèi)冷卻水安靜，則標(biāo)明節(jié)溫器工作正常，否則，則表明節(jié)溫器工作異常。這是因?yàn)椋谒疁氐陀?0℃時(shí)，節(jié)溫器脹大筒處于縮短情況，主閥門關(guān)閉;當(dāng)水溫高于80℃時(shí)，脹大筒脹大，主閥門逐步翻開，散熱器內(nèi)循環(huán)水初步活動。
Open the radiator water inlet cap. If the cooling water in the radiator is quiet, it indicates that the thermostat works normally. Otherwise, it indicates that the thermostat works abnormally. This is because, when the water temperature is lower than 70 ℃, the expansion cylinder of the thermostat is in the shortening condition, and the main valve is closed; when the water temperature is higher than 80 ℃, the expansion cylinder is expanded, and the main valve is gradually opened, and the circulating water in the radiator is initially active.
當(dāng)水溫表指示70℃以下時(shí)，散熱器進(jìn)水管處若有水活動，水溫溫?zé)?，則表時(shí)節(jié)溫器主閥門關(guān)閉不嚴(yán)，使冷卻水過早大循環(huán)。假定是纖細(xì)的臟污，可不必?cái)嚢柢囓嚿砬逑磩?，直接用毛巾擦，?dāng)即就能夠擦潔凈。但假定玻璃上附著的是油膜，用通常的辦法很難肅清，這時(shí)，需求動用肅清油膜專用的玻璃清洗劑來擦洗，它的效果是能夠使油膜不易附在玻璃上。運(yùn)用玻璃專用清洗產(chǎn)品前，應(yīng)先清洗車窗，否則清洗效果會打扣頭。玻璃清洗劑在干了以后，就像打蠟相同會變白，只需用柔軟的布將它拭去即可。
When the water temperature gauge indicates below 70 ℃, if there is water movement at the radiator inlet pipe and the water temperature is warm, the main valve of the thermometer is not closed tightly, which makes the cooling water circulate prematurely. Assuming that it is a fine dirt, you don't need to mix the car body cleaning agent, just use a towel to clean it immediately. But suppose that the oil film is attached to the glass, and it is difficult to clean it with the usual method. At this time, it is necessary to use the special glass cleaning agent to clean the oil film. Its effect is that the oil film is not easy to adhere to the glass. Before using the special cleaning products for glass, the windows should be cleaned first, otherwise the cleaning effect will be compromised. After the glass cleaner is dry, it will turn white just like waxing. Just wipe it off with a soft cloth.
