Please describe what preparations should be made before the pump starts after the pump truck arrives at the construction site.

(1) When laying a downward inclined pipe, a section of horizontal pipe should be installed at the outlet, and its length should not be less than 5 times of the elevation difference of the inclined pipe.

(2) The pumping pipeline shall be firmly supported, and between the pipeline and fixture and components, skids and waste tires shall be set as buffers, and shall not be in direct contact with steel bars or templates. Pipes should be firmly connected, pipe joints and clamps should be tightly sealed, and slurry leakage is not allowed.

(3) The horizontal pumping pipeline shall be laid in a straight line with a certain slope.

(4) The riser should not be directly installed at the outlet of the pump, and an uneven pipe with a length of not less than 20m should be installed at the front end of the riser.

2. After the concrete pump truck comes into play, the pumpman should wear the safety helmet correctly according to the regulations.

3. Accept the safety technical disclosure of the forecourt foreman, and get in touch with the relevant personnel on the construction site to determine the placement position of the concrete pump truck, whether there is water and electricity near the concrete pump truck, whether there are obstacles, and whether the site is convenient for the tanker to walk and feed.

4. The fuselage should be kept horizontal and stable. Under normal circumstances, the wheels should be overhead and there should be no obstacles in the surrounding environment.

5. Take out all the articles in the feed hopper and cabinet, cover them with a screen, and check whether there is any damage on each part, whether the bolts are loose, whether the oil quantity in the lubrication system is sufficient, and whether the cooling water source is in place.

6, start the concrete pump truck no-load operation, observe whether the pump, mixing system and instrument running status is normal.

7. Check the working environment around the pump for the possibility of falling objects, and set up a protective shed when necessary.

8. Place triangular wood at the corresponding position in front of the hopper of the concrete pump truck to prevent equipment and personnel accidents caused by accident when reversing the tanker truck.