Common causes of "Volvo excavator stalling" fault:
1. There is a problem with the computer board of Volvo excavator.
2. Or there is a problem with the solenoid valve of the excavator
3. Also, the air filter element of the excavator is dirty or broken
4. The oil circuit of Volvo excavator engine is blocked.
5. The supply of diesel oil is insufficient and the air is not enough.
6. The hydraulic oil filter screen is blocked.
7. The mediator is stuck.
8. In addition to the above reasons, there is also that the diesel used by Volvo excavator is too poor, which will also lead to the suffocation and flameout of the excavator.
Supplement:
Generally, the failure of holding the excavator is due to the fact that the power of the excavator hydraulic pump is greater than that of the engine, which leads to the phenomenon of holding the excavator or even flameout. Therefore, after the failure occurs, first check whether the power of the excavator hydraulic pump matches the power of the engine The inspection method can be to reduce the power of the excavator hydraulic pump, and then see if the Volvo excavator works normally? If it is still abnormal, it means that it is not the problem of the hydraulic pump. It is necessary to check the engine. Generally, it is mainly to adhere to the oil supply system of yiha engine to see whether the oil supply pipeline is blocked, or whether the filter element is dirty, whether the hydraulic oil filter screen is blocked by dirt, etc.
If the Volvo excavator is choking or even stalling, and black smoke is emitted at the same time, the cause of the fault must be the mismatch between the power of the excavator hydraulic pump and the engine power. If black smoke is not emitted, it means that the oil supply of the Volvo excavator cannot increase with the increase of engine load. It is necessary to check the oil supply system of the engine to see if the oil circuit is blocked? Whether the fuel supply pressure of the engine is low, etc.
