Fault symptoms:

The action of modern 225-9T excavator is very slow, whether it is cold or hot. When the excavator is specially loaded, the action of lifting the big arm of the excavator is particularly slow. The service time of the excavator is more than 7000 hours.

The whole car of Hyundai 225-9T excavator moves slowly, and the loading arm moves very slowly.

1 If the excavator is a new car, the reason for the failure is that the excavator wood filter air filter should be replaced.

2. The use time of the excavator in the above cases is more than 7,000 hours, so the reasons mentioned above are excluded.

3. Our factory once repaired a case of Volvo excavator's slow operation fault. The pilot pressure of the excavator was 40 kg, the main pump was 300 mpa, and the overflow pressure was 320 mpa, but the excavator's operation was still very slow in F mode.

[Recommended reading] : The whole excavator moves slowly

The whole car of modern 225-9T excavator moves slowly. What is the reason why the loading arm moves slowly?

1 The pressure of the excavator pump is not enough. The pump pressure of the 225-9 excavator on site should be between 300-320 mpa.

2 The hydraulic pump of the excavator has wear.

3 Hydraulic pump is too dirty.

4 Pump sensor and engine speed sensor are faulty.

5 The overflow pressure of the main safety valve is incorrect.

The above is our modern excavator maintenance master's analysis of the fault phenomenon of "modern 225-9T excavator whole car action is slow, loading arm action is particularly slow". You can call for advice if you don't know.

Hyundai 225-9T Excavator

1 Electric injection engine, more fuel efficient, suitable for earthwork.

2. The price of the parts of the excavator is a little expensive.