The inspection of the telescopic arm of excavator should be strengthened after entering summer. Summer is a high-frequency period of failure, so we should strengthen the inspection of all components. What happened when the telescopic arm of the excavator suddenly came out with black smoke? If you need help, let's get to know each other.

　　期间如果有任何异常操作挖掘机故障应及时维修处理,严禁与错误操作,当有黑烟挖掘机失败后我们应该及时检查柴油泵的使用情况,检查是否增压系统和排气系统,进气系统与空气泄漏故障,检查烟现象由摄入不足引起的

　　During this period, if there are any abnormal operation excavator failure, it should be timely repaired and handled, strictly forbidden and wrong operation, when there is black smoke excavator failure, we should timely check the use of diesel pumps, check whether pressurization system and exhaust system, air intake system and air leakage failure, check smoke phenomenon caused by inadequate intake.

　　如果挖掘机在运行过程中突然出现黑烟，不仅会使发动机转速下降，而且工作转速也会有一定的偏差。为了保证挖掘机的正常运行，我们可以控制柴油泵的高回油压力。

　　If the excavator suddenly appears black smoke in the process of operation, not only will the engine speed drop, but also the working speed will have a certain deviation. In order to ensure the normal operation of the excavator, we can control the high return pressure of the diesel pump.

　　挖掘机的伸缩臂应专注于工作，不应分散注意力。挖掘机的伸缩臂在驱动过程中，应注意各部件的操作，避免潜在的故障。挖掘机的伸缩臂在下坡时也有一定的技术

　　The telescopic arm of excavator should concentrate on its work and not be distracted. During the driving process of the telescopic arm of excavator, attention should be paid to the operation of each component to avoid potential faults. The telescopic arm of excavator also has some technology when it is downhill.

　　挖掘机的加长臂在下坡时必须减速。同时也要注意下坡段的情况，避免在下坡段出现大石头。如有，应提前清理，以免挖掘机加长臂打滑

　　The elongated arm of the excavator must decelerate when it is downhill. At the same time, we should pay attention to the situation of downhill section to avoid the occurrence of large stones in downhill section. If so, it should be cleaned in advance to avoid slippage of the excavator's elongated arm.

　　在下坡速度一定要慢，不要在斜坡上急转弯，在下坡一定要让挖掘机斗先着地，还应该注意的是不仅要控制挖掘机的速度，还要控制斗。

　　In the downhill speed must be slow, do not turn sharply on the slope, in the downhill must let the excavator bucket first land, but also pay attention to control not only the speed of excavator, but also the bucket.

　　在下坡时一定要小心，不要急躁，一定要保持冷静的头脑，确保挖掘机下坡时伸直手臂的

　　Be careful not to be impatient when you go downhill. Keep a cool head and ensure the safety of the arm when the excavator goes downhill.

　　这就是挖掘机伸出臂产生黑烟的原因。我相信你们都有一些理解。如果你想了解更多关于挖掘机加长臂的细节，请关注我们公司的网站。

　　That's why the excavator stretched out its arms to produce black smoke. I believe you all have some understanding. If you want to know more about the excavator's elongated arm, please pay attention to our company's website.