Fault phenomenon:
Excavator operations occurred in the engine, if the pull is powerful, it may cause the excavator to turn off. (In general, the excavator is 50% to the upper speed, can be identified as an excavator engine fails) Excavator engine speed failure causes :
1 Diesel oil road problem. (Generally, the diesel oil is blocked)
2 Engine failure. (Turn speed is too low)
3 The gap of the solenoid valve is too large, the oil supply is insufficient, resulting in a speed of the excavator engine, flameout
4 The engine load is too large.
5 Hydraulic system failure.
6 The fuel pressure is low, and the fuel quality is poor.
7 The valve gap is wrong.
8 Any engine cylinder modified value of the engine is not right.
9 intake system leaks.
The 10 brake and the turn is not normal.
11 The injection timing is wrong, and the fuel amount is not correct.
12 brakes and manipulated rods have problems and turbocharger.
13 hydraulic fault.
Excavator engine speed failure repair:
1 When the excavator engine is pulled down, the first excavator master checks whether the diesel used in the excavator is metastasis? Is there any impurities? Is there any impurities?
2 Second, look at the excavator is an electric spray engine or a direct blown engine, direct injection engines do the first step.
3 After checking the diesel road, check the valve clearance of the engine and check the speed of the engine.
4 Then check that the excavator engine does not appear in the case of engine load?
5 Finally, check the engine to see if it is an excavator engine driven by the engine's failure.
add:
Excavator engine is generally in general and the job ambient temperature of the excavator is not related, because the excavator oil cooling device and air supercharger, there is a turbocharger, so even if the excavator is in high altitude area There are very few excavators to pull the speed.
In addition, in general, the main cause of the excavator engine is mainly caused by the main cause of the load, and the load is changed. When the hydraulic system is faulty, it is easy to change the speed or a helper.
