As soon as the excavator works hard, black smoke appears. What are the reasons for black smoke?
Fault performance:
When the excavator is working under load, the engine will emit a lot of black smoke and exhaust gas. What should we do?
Caterpillar 320D excavator works hard and emits black smoke. Possible causes:
1 The fuel supply is large.
2 The pump does not match the engine power, causing black smoke.
3 There is a problem with the diesel oil circuit of the engine.
4 There is a problem with the diesel pump or fuel injection nozzle.
5 Problems with the pump valve.
Inspection method for black smoke from Caterpillar 320D excavator:
1. The air intake is insufficient. Check whether the air filter is blocked, and whether the air intake pipe from the booster intercooler is damaged, causing air leakage.
2 Check whether the air inlet pipe is flat.
3 The valve timing is not adjusted properly, the valve clearance is not adjusted properly, and the valve is not opened or closed timely.
4 Check whether the exhaust system is blocked, the exhaust pipe is blocked, and the waste gas cannot be discharged in time, resulting in insufficient intake, incomplete combustion, and insufficient power.
So at the end of the article, it can be seen from the above analysis that there are many reasons for the black smoke of the excavator. The operator shall pay attention to the correct use and maintenance of the excavator. In case of a series of failures such as black smoke, the operator shall timely check and eliminate the failures to ensure the normal and stable operation of the excavator.
