Concrete automatic feeding mixer will inevitably be damaged after use or long-term use. It will also damage the engine. Under what circumstances should the engine be overhauled? I'll talk about it in detail below.

1.圆柱体的内径太旧，圆度偏差为0.040.06 mm，圆柱度偏差为0.080.12 mm（通常在圆柱体的下半部和上半部测量该差异）。对于多缸发动机，圆度和圆柱度之间的偏差基于磨损的气缸。

1. The inner diameter of the cylinder is too old, the roundness deviation is 0.04 to 0.06 mm, and the cylindricity deviation is 0.08 to 0.12 mm (the difference is usually measured in the lower and upper half of the cylinder). For multi cylinder engines, the deviation between roundness and cylindricity is based on the cylinder with the most wear.

2.机油量显着增加，机油压力下降，排气管发出深黑色和蓝色的烟雾。

2. The amount of oil increases significantly, the oil pressure decreases, and the exhaust pipe emits dark black and blue smoke.

3.混凝土搅拌车的输出功率大大降低，高马力约为额定输出功率的60％（不包括由于高海拔而导致的输出功率下降），并且气缸压力低于标准压力的65％。

3. The output power of concrete mixer is greatly reduced, the high horsepower is about 60% of the rated output power (excluding the output power reduction due to high altitude), and the cylinder pressure is lower than 65% of the standard pressure.

4.曲轴磨损太大磨损后曲轴轴颈的圆度和圆柱度之间的偏差超过了使用限制，或者圆度和锥度限制为0.10 mm。

4. The crankshaft is worn too much, and the deviation between the roundness and cylindricity of the crankshaft journal after wear exceeds the maximum limit, or the roundness and taper are limited to 0.10 mm.

5.启动/停止发动机时，如果水温为50-60°C，水温将无法平稳启动。

5. When starting / stopping the engine, if the water temperature is 50-60 ° C, the water temperature will not start smoothly.

6.异常的发动机噪音或运转，发动机在高温下运转时的气缸噪音（活塞爆震）以及主轴承或连杆轴承的剧烈振动或爆震噪音。

6. Abnormal engine noise or operation, cylinder noise (piston knock) when the engine is running at high temperature, and severe vibration or knock noise of main bearing or connecting rod bearing.

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This article is organized and released by the self feeding mixer. Do you know something about these contents? For more information, please click: https://www.zishangliaojiaobanji.cn We'll have a lot more to see.