OEM/ODM China Komatsu Pc300-8 Hydraulic Pump - multi-way valve spool for concrete pump spare parts – CCMIC

multi-way valve spool

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description

The most common fault of the multi-way valve is that the boom action is issued, the action is not flexible, the action is fast and sometimes slow, or it does not move, or it stops when it moves.

Reason analysis: the pump truck boom multi-way valve is a precision component, and the internal parts have high precision. Therefore, during operation, the oil cleanliness and oil product requirements are high. Excessive oil impurities cause the multi-way valve to wear. The main reason, oil emulsification and oil quality problems can also cause abnormal operation of the multi-way valve.

If the multi-way valve is stuck, only replace the small spool, which can alleviate the urgent need, but it is not a cure for the symptoms, because there are many other spools in the multi-way valve. Each spool plays a vital role.

I often encounter some pump trucks because of the multi-way valve problem. The new multi-way valve does not take two weeks or the card is issued, and the new oil is changed. Later, it is discovered that the oil product has a great influence on the multi-way valve.

Fake oil can be said to be devastating to hydraulic parts. Because of the difference in label additives, most of the fake oil is recovered and refined from waste oil with different labels. The mismatch of viscosity, fluidity, compressibility and hydraulic components will accelerate the wear of hydraulic parts. , And there will be continuous hydraulic failures, which is difficult to eliminate!

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