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      News

      How to deal with truck mounted concrete pump failures

      There are many possible failures of a truck mounted concrete pump, and here we deal with several of them. Solutions are shared as well.
       
      The hydraulic system of a concrete pump truck is without pressure or insufficient pressure.
      Reason: The relief valve is opened, because the valve core is stuck, it cannot be closed, the damping hole is blocked, the valve core and the valve seat are not well matched or the spring is invalid.
      Solution: repair the valve core and the housing, clean the damping hole, replace the spring
       
      Reason: Other control valve spools are stuck due to faults, causing unloading
      Solution: Find the fault location, clean or repair, and make the spool move flexibly in the valve body.
       
      Reason: The hydraulic components are seriously worn or the seal is damaged, causing internal and external leakage.
      Solution: Check the tightness of the connections at the pump, valve and piping, repair or replace parts and seals
       
      Insufficient traffic of the hydraulic system of a 54m concrete pump truck
      Reason: The fuel tank liquid level is too low, the viscosity of the oil is large, and the filter blockage causes the oil absorption resistance to be large.
      Solution: Check the liquid level, replenish oil, replace the hydraulic oil with suitable viscosity, and ensure the diameter of the suction pipe
      truck mounted concrete pump truck
       
      Reason: The hydraulic pump has serious idling wear and performance degradation.
      Solution: Check engine, hydraulic pump and hydraulic pump variable mechanism, change pump if necessary
       
      Reason: The return pipe is above the liquid level and the air enters
      Solution: Check that the pipe connections and seals are correct and reliable
       
      Reason: Accumulator leakage, insufficient supply of pressure and flow
      Solution: Check accumulator performance and pressure
       
      Leakage of the hydraulic system of a truck mounted concrete pump
      Reason: The joint is loose and the seal is damaged.
      Solution: Tighten the joint and replace the seal
       
      Reason: Plate connection or flange connection joint screw pre-tightening force or seal damage
      Solution: Preload should be greater than hydraulic pressure, replace the seal
       
      Reason: The system pressure is longer than the rated working pressure of the hydraulic components or accessories.
      Solution: The pressure inside the component housing should not be greater than the allowable pressure of the oil seal.
       
      Overheating of the hydraulic system of a concrete pump truck
      Reason: improper pressure adjustment, long-term work under high pressure
      Solution: Adjust the relief valve pressure to the specified value and improve the circuit if necessary
      Reason: Power loss due to leakage and mechanical friction in the system
      Solution: Check leaks, improve sealing, improve machining accuracy, assembly accuracy and lubrication conditions

      Pre:How to choose concrete pump truck manufacturers
      Next:Solutions to hydraulic vibration of a concrete pump truck

      日本在线无码中文一区免费
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