Main Pump Excavator Hitachi

We all know that the operating weight of the excavator is quite large. The large force of the excavator operation is not due to the the size of the engine larger, but due to the power generated by the hydraulic pressure is very powerful, all the power of the excavator working device is provided by the main pump, the main pump is driven by the power of the engine, sucks oil from the hydraulic oil tank, and is transported as pressure oil, thereby converting the mechanical energy of the engine into hydraulic energy. Therefore, the quality of the main pump is quite important to excavators.

So what kind of main pump is more durable? Here are some tips for identification.

1. Pay attention to the leakage of the piping part of the hydraulic device piping is good, after a period of operation, it can be seen whether there is oil leakage and whether the piping is loose.

2. Within three months of the operation of the new main pump, pay attention to the operation conditions during the operation of the new machine, and the operation status should be checked, such as the maintenance of the parts, whether the screws are loose, whether the oil temperature has risen abnormally, whether the hydraulic oil deteriorates quickly, and check whether the conditions of use meet the regulations.

3. Pay attention to abnormal phenomena. If you find abnormal sounds, vibrations or abnormal signals of monitoring systems, etc., there must be a reason, once an abnormal phenomenon is found, immediately find the circuit diagram, according to the diagram, carefully observe to see whether the abnormal phenomenon is caused by a temporary error. Assessment of whether parking is required. The causes of abnormal phenomena mainly include pressure, load, temperature, time, start, and stop, and it is best to analyze and study them one by one.

4. Observe the change of oil temperature, pay attention to check the change of the highest and minimum oil temperature, and find out the relationship between the oil temperature and the external ambient temperature, so as to know whether the cooler capacity and the capacity of the oil storage tank are coordinated with the surrounding conditions and the conditions of use, and the troubleshooting of the cooling system can also be followed.

But these are the answers that can only be obtained after use. Instead, it is better to choose a reliable manufacturer from the beginning, so as to effectively avoid future troubles. Elephant Fluid Power supplies main pumps for Hitachi excavators all year round. We adhere to the principle of "quality first, service first", if you have purchase needs, please rest assured to choose us.

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