How to operation self loading concrete mixer

22-06-2020

1. Be sure to check the fuel before driving the self-loading concrete mixer. This is the most basic. Secondly, check whether the amount of lubricating oil, hydraulic oil, brake fluid, antifreeze, etc. is sufficient and whether the quality meets the requirements. .



2. Check the power output device and confirm that there are no loose bolts and bearing oil leakage. When loading concrete from a self-loading concrete mixer, the loading capacity must not exceed the rated capacity. Operate the self-loading concrete mixer truck. Note that the pressure of the hydraulic system should meet the requirements in the instruction manual, and it cannot be adjusted at will. The oil quality and quantity of the hydraulic oil should meet the original requirements.


3. Before starting the self-loading concrete mixer, be sure to put the operating handle of the mixing tank in the "stop" position. After starting the engine, let the mixer rotate at low speed for about 10 minutes to increase the temperature of the hydraulic oil to It can work above 20 degrees Celsius.



4. Before loading the self-loading concrete mixer truck, the mixing tank must be reversed to drain off the water and debris in the tank, which is conducive to ensuring the quality of the concrete. During the transportation process, it must be rotated continuously to prevent the segregation of concrete. Before the loading concrete mixer arrives at the construction site and discharges, it should first rotate the mixing drum at full speed at 14-18 rpm for 1-2 minutes, and then reverse the discharge. Before reversing, the mixing drum should be stopped stably.


5. When loading the self-loading concrete mixer, put the operating handle in the "charging" position and adjust the appropriate speed to make the feeding smooth.



6. During the transportation of the self-loading concrete mixer, it is necessary to ensure that the discharge hopper and the discharge trough are fixed well to prevent the swing from being loosened, hurting pedestrians or affecting the normal driving of other vehicles.



7. When shipping the pre-mixed concrete, the mixing tank is at 2-10 rpm. During transportation, the concrete should be prevented from segregating to ensure the quality. The speed of the mixing tank is 2-3 rpm on a flat road. When the road surface with a roll gradient of more than 15 degrees, or when the road surface is shaken from side to side, the mixing rotation should be stopped, and the mixing rotation should be resumed after the road conditions improve.


8. The time for delivery of concrete from the loading concrete mixer truck cannot exceed the time specified by the mixing station. From transportation to the unloading of the mixing tank, it cannot be stopped. If there is any abnormality in the concrete, it should be notified to the dispatching room in time for timely treatment.



9. When the mixing tank changes from positive to reverse, the operating handle should be placed in the middle position. After the mixing tank stops, the handle should be placed in the reverse position.



10. After the unloading is completed, the body and the tank should be cleaned; the water in the pressure water tank should be kept normal, and the accumulated water in the water supply system should be discharged after the vehicle is used up in winter.


11. The ambient temperature is higher than +25 degrees Celsius, and the duration from loading, transportation to unloading should not exceed 60 minutes. The ambient temperature is lower than +25 degrees Celsius, and the above time should not exceed 90 minutes. During winter construction, it should be practically done: check whether there is ice before starting; carefully remove residual water in the mixing drum and water supply system after get off work, turn off the pump switch, and place the control handle in the "stop" position.



12. Before unloading, let the mixing tank stir at a speed of 11 rpm for 1 minute. The continuous operation time of the stirring device should not exceed 8 hours. After the unloading at the construction site is completed, the hopper, the discharge hopper, the discharge chute, etc. should be flushed with the hose provided with the mixer truck to remove the sludge and concrete adhering to the body. On the way back to the mixing station, 150-200L of water should be injected into the mixing drum to clean the concrete residue adhered to the wall and blades of the drum.




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