The reasons and solutions for the small pressing block of hydraulic brick machine and its failure to lift are introduced. It is necessary to test whether the whole hydraulic transmission system of hydraulic brick machine can establish normal working pressure. Some pipelines or hydraulic cylinders (hydraulic motors) have no working pressure, which may be caused by blockage of pipelines, throttle valves, reversing valves and other components. The operating pressure and hydraulic oil shall be inspected section by section to find out the causes and remove them.
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