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When installing the filter equipment, pay attention to the liquid flow direction indicated on the shell, and install it correctly in the hydraulic system;

Before filtering the hydraulic oil, all cylinders should be retracted to the end.

Oil supply device: There are oil pump, oil pipeline, oil pipe, pressure limiting valve, etc., it can make oil flow in the circulation system at a fixed pressure and flow rate.

When the filter fails during use, it can be explained by the following reasons：

Many users will think that the bypass valve of the filter and the safety valve of the system have the same function

Drain the original hydraulic oil before replacing, check the return oil filter element, suction oil filter element and pilot filter element to see if there are iron filings, copper filings or other impurities.In some cases, there may be faults in hydraulic components. After overhauling and eliminating, clean the system.