冷却液滴漏
Coolant drip
1.不良反应：车下滴漏出一滩莫名其妙的液体，且冷却液的液面高度下降。
1. Adverse reaction: a pool of inexplicable liquid dripped from under the vehicle, and the level of coolant dropped.
2.病情原因：通常情况下，造成滴漏的原因是连接冷却液箱和发动机间的橡皮管有裂缝。
2. Cause of disease: generally, the cause of drip leakage is the crack in the rubber tube connecting the coolant tank and the engine.
3.绿色保养：变质的冷却液防锈品质下降，不但容易导致散热器、管路、软管等部件的损坏，而且因冷却液的主要成分是乙二醇，滴漏到地上也会造成环境和空气污染。通过目测很难判断冷却液是否变质，所以要定期更换冷却液，切莫等到出现故障再去修理。一般建议小型混凝土搅拌车每行驶4万km或2年须更换新的冷却液，另外每2年须更换冷却风扇皮带。
3. Green maintenance: the deterioration of the quality of coolant rust prevention, not only easy to cause damage to radiator, pipeline, hose and other components, but also because the main component of the coolant is ethylene glycol, dripping to the ground will also cause environmental and air pollution. It is difficult to judge whether the coolant is deteriorated by visual inspection, so it is necessary to replace the coolant regularly, and do not wait for the failure to repair. It is generally recommended that the coolant of small concrete mixer should be replaced every 40000 km or 2 years, and the cooling fan belt should be replaced every 2 years.
●动力性能下降
Power performance degradation
1.不良反应：发动机动力性能下降，油耗增加，喷嘴堵塞。
1. Adverse reactions: engine power performance decreased, fuel consumption increased, nozzle clogging.
2.病情原因：很可能是由于小型混凝土搅拌车长时间未更换机油、机油滤清器、空气滤清器和汽(柴)油滤清器造成了油料燃烧不充分，发动机积炭较多等而致。
2. Cause of disease: it is likely that the oil, oil filter, air filter and gasoline (diesel) oil filter have not been changed for a long time in the small concrete mixer truck, resulting in insufficient fuel combustion and more carbon deposition in the engine.
3.绿色保养：建议机油、机油滤清器，每行驶约5000km更换一次，空气滤清器和汽(柴)油滤清器每行驶1万km时需更换，否则空气、燃油和机油中的杂质会造成零件磨损和油路堵塞，从而影响发动机正常运转。
It is recommended to replace the oil filter and air filter every 5000km, which will affect the normal operation of the engine oil filter and air filter every 5000km.
●发动机不启动
Do not start the engine
1.不良反应：多次点火，发动机不启动。
1. Adverse reaction: multiple ignition, the engine does not start.
2.病情原因：小型混凝土搅拌车发动机启动是靠电瓶的电流推动火花塞点火完成，因而启动系统出现故障，很可能是由于电瓶生锈或者电瓶液滴漏造成。
2. Cause of disease: the starting of the engine of the small concrete mixer is completed by the spark plug ignition driven by the current of the battery. Therefore, the failure of the starting system is likely due to battery rust or battery liquid leakage.
3.绿色保养：每1~2个月要查看电瓶内的电瓶液是否充足。如果不足，可添加蒸馏水至适当高度。目前乘用车大都采用免维护电瓶，不可擅自加水。此外，每年都要检查一下电瓶的正负端接点有无生锈或污浊的现象。
3. Green maintenance: check whether the battery liquid in the battery is sufficient every 1 ~ 2 months. If not, add distilled water to a proper height. At present, most of the passenger cars use maintenance free batteries, and it is not allowed to add water without authorization. In addition, check whether the positive and negative terminals of the battery are rusty or dirty every year.
●排气噪声增加
Increased exhaust noise
1.不良反应：发动机排气的噪声增加，废气排放量也超标。
1. Adverse reaction: the noise of engine exhaust increases, and the exhaust emission exceeds the standard.
2.病情原因：发动机的废气经高温发生氧化作用，很可能导致排气系统泄漏。
2. Cause of disease: the exhaust gas of the engine is oxidized by high temperature, which may lead to the leakage of exhaust system.
3.绿色保养：检查排气系统的管路、接口处(特别是消音器)是否被废气腐蚀，接口垫有没有被冲坏。若发现小型混凝土搅拌车排气系统泄漏应及时修理或更换泄漏部件。每年检查1次不仅可以保障排气系统正常运转，更重要的是减少尾气对环境的污染。
3. Green maintenance: check whether the exhaust system pipeline and interface (especially muffler) are corroded by exhaust gas, and whether the interface pad is damaged. In case of leakage of exhaust system of small concrete mixer truck, repair or replace the leaking parts in time. Inspection once a year can not only ensure the normal operation of the exhaust system, but also reduce the pollution of the exhaust gas to the environment.
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