Operation of concrete pump truck these rules to understand two

Operation of concrete pump truck these rules to understand two:

The extension rod should be carried out in accordance with the order of the factory instruction, and the rod can be turned after lifting from the support. It is forbidden to lift or drag objects with cloth rods. When the cloth rod is in full extension, do not move the body. When the car body needs to be moved in operation, the upper section of the cloth rod should be folded and fixed, and the moving speed should not exceed 10km/h. Do not drag the front hose of the cloth rod on the ground; It is strictly forbidden to extend the cloth piping and the cloth rod. When the wind is at six or above, the concrete shall not be transported by the material rod.

The laying of the pumping pipe of the concrete pump truck shall be carried out in accordance with the provisions of article 2 of the concrete pump in this code. Before pumping, when the hydraulic oil temperature is lower than 15℃, the method of prolonging the air running time should be adopted to improve the oil temperature. When pumping, check the operation of the pump and mixing device, monitor the instrument and indicator light, if abnormal, it should be stopped in time. The concrete surface in the hopper should be kept above the center line of the mixing shaft. Pumping concrete should be done continuously.

When forced to suspend due to the interruption of material supply, the concrete pump in accordance with the requirements of the tenth of the implementation of the operation, shall not take off the hopper grid, and should be timely removal of unqualified aggregate or debris. When it is found that the pressure gauge rises to a high value and the operation sound changes, the pumping should be stopped immediately, and the reverse operation method should be adopted to eliminate the blockage of the pipeline; Ineffective, should remove the pipe cleaning.

After the operation of concrete pump truck, all the concrete in the pipeline and hopper should be output, and then the hopper, pipeline and so on should be washed. When the pipe is flushed with compressed air, no one is allowed to stand within 10m in front of the outlet end of the pipe. After operation, no compressed air shall be used to flush the pipe of the cloth rod, and the folding and contraction of the cloth rod shall be carried out in accordance with the specified sequence. After the operation, all parts of the control switch, adjustment handle, hand wheel, control rod, cock and so on should be reset, the hydraulic system should be unloaded, and should recover the legs, park the car in a safe area, close the doors and Windows. The stored water should be drained in winter.