Precautions For Use Of Concrete Mixer

- Dec 29, 2017 -

Precautions for use of concrete mixer


1.The pressure of the hydraulic system shall conform to the provisions in the instructions and shall not be adjusted arbitrarily. The oil and oil content of hydraulic oil should meet the original requirements.


2. Before the concrete mixing truck is loaded, the remaining water and debris shall be put into the net. Keep rotating during transportation to prevent concrete from being isolated. Before the concrete agitator truck arrives at the site and unloaded, it is necessary to rotate the mixer at full speed from 14 to 18 RPM for 1 to 2 minutes and then reverse the unloading. Before reversing, the agitator should be stopped.


3. The environmental temperature is higher than +25 degrees Celsius, and the duration of the loading, transportation and unloading shall not exceed 60 minutes. The ambient temperature is below +25 degrees Celsius, and the above time shall not exceed 90 minutes.


4. During the construction of winter, it should be done in a practical way: check before starting to check whether the ice is frozen; Remove the remaining water in the mixing tube and water supply system carefully after work, close the pump switch, and place the control handle in the "stop" position.


5. After the unloading of the construction site is completed, the hoses of the mixer should be flushed out of the hopper, the hopper, the discharge chute and so on, and the sludge and concrete attached to the body shall be removed. In the process of returning to the mixing station, 150-- -200l water should be injected into the stirring cylinder to clean the concrete residue of the cylinder wall and blade.


6. After the daily work, the driver shall be responsible for injecting water into the mixing bowl and rotating the water at high speed (14 -- 18 RPM) for 5 to 10 minutes, then the water will be drained to ensure that the cylinder is clean. When using high pressure water to clean the various parts of the agitator, you should be careful to avoid the parts such as the instrument and the joystick. The distance between the pressure water nozzle and the body paint surface shall not be less than 40cm.


7.remove mixing tube inside and outside the accumulated dirt and residual slag concrete block, and the mechanics into the cylinder for maintenance and welding repair operations, please close the car engine, to rotate the mixing tube to a full stop. During the operation of the mechanic, it must be well ventilated, fresh air, gas and harmful dust, and sufficient oxygen supply (not pure oxygen). Operators must have good insulation when using power tools in the tube.


8. When working, it is not allowed to extend the hand into the rotating agitator. It is strictly forbidden to reach the connection part of the unloading chute and lengthened discharge chute to avoid the accident.


9. Regularly check the abrasion of the mixing blades and repair and replace them in time.


10. Implement various safety operation specifications. The driver of the concrete mixing truck must undergo professional training, and the non-qualified witness shall not operate the post.


Elephant Group 

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