What if the excavator moves slowly? Let's take a look!

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excavatorslow action is divided into: single slow action; Slow movement of the whole car/vehicle; The cooling engine is normal, but the heating engine is slow.
Slow single motion
For example, when operating a single operation such as walking, reversing, lifting the forearm, and recovering the bucket, the speed is relatively slow.
1. The relief valve pressure of the related components of the excavatoris too low and needs to be tested.
2. Pump, low pressure sensor, multi-way valve failure;
3. The related solenoid valve is faulty, and the valve core is stuck.
Slow vehicle movement
1. Whether it is maintained on time, whether the hydraulic oil is replaced on time; If the hydraulic oil circuit is blocked, please check the system pressure at idle and check whether the return oil filter element is blocked.
2. The output power of the engine is too low, and the power is insufficient. Please analyze the output of the engine with DX data to see whether all cylinders can work at the same time. Check the engine for black smoke, if the fuel nozzle is seriously worn, it will also cause the engine power to decrease.
3. The output of hydraulic pump is insufficient, and the relevant pressure can be tested by entering the service diagnostic system.
4. Insufficient pilot pressure causes insufficient pressure to open the spool, resulting in insufficient flow and slow action.
5. Circuit related problems: excavatorCPU, high and low pressure sensor, solenoid valve and line failure.
The cooling engine is normal, but the heating engine is slow
1. The oil is too dirty and needs to be replaced; Check whether there are copper chips in the oil filter screen, which causes the main pump to wear and need to be disassembled.
2. The pilot filter element, return oil filter element and oil suction filter element are blocked.
3. There is mud on the servo piston of the main pump conditioner, the swash plate can not be adjusted, and the main pump is always working in small displacement and the flow is small.

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