There must be no air in delivery pipe of Daswell concrete pump

4. After connecting the concrete pump with delivery pipe, examine comprehensively according to instruction manual. If all meet the requirements, carry out the empty operation.

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5. Deliver some water to make hopper, piston and the inner wall of delivery pipe where is direct in contact with the concrete moist.

6. When pumping, the concrete pump should be in slow and constant speed and ready for anti-pumping. The speed should be from slow to fast and increase gradually. At the same time, observe the pressure of concrete pump and working conditions of every system.when every system runs smoothly Sicoma twin shaft concrete mixer, pump in the normal speed.

7. The delivery should be continuous. When concrete pump must be interrupted Planetary Concrete Mixers, the interrupting time should not exceed the duration from mixing to the completion of pouring.

8. When pumping, the piston must runs in the biggest stroke.

9. When pumping, there must be no air in delivery pipe. Otherwise, the concrete must be suctioned into the hopper and mix again to eliminate the air before pumping.

10. Water tank and piston cleaning room must be filled with water when pumping concrete.

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