The hydraulic system pressure of the full-automatic small loading mixer should be in accordance with the provisions in the operation manual, and should not be adjusted at will. The quality and quantity of hydraulic oil should meet the original requirements. Before loading, the residual water and debris in the mixing drum should be drained. In the process of transportation, keep rotating to prevent concrete segregation. Before the full-automatic small loading mixer arrives at the construction site and unloads, the mixing drum should be rotated at full speed at 14-18 rpm for 1-2 minutes, and then reverse the unloading. Before reversing, the mixing drum should be stopped stably.
When the temperature in the tank of the full-automatic small loading mixer is higher than 25 ℃, the duration from loading, transportation to unloading shall not exceed 60 minutes, and the above time shall not exceed 90 minutes when the ambient temperature is lower than 25 ℃. During winter construction, it is necessary to check whether there is icing before starting the machine; when off duty, carefully remove the residual water in the mixing drum and water supply system, turn off the water pump switch, and put the control handle at the "stop" position.
搅拌车在施工现场卸料完毕后，应立即用搅拌车随带的软管冲洗进料斗，出料斗，卸料溜槽等处，清除粘附在车身各处的污泥及混凝土。在返回搅拌站的途中，应向搅拌筒内注150 --- 200L水以清洗筒壁及叶片粘结的混凝土残渣。
After the mixer truck is unloaded at the construction site, the inlet hopper, discharge hopper, discharge chute and other places shall be washed with the hose attached to the mixer to remove the sludge and concrete adhered to the vehicle body. On the way back to the mixing station, 150-200l water should be injected into the mixing drum to clean the concrete residue bonded by the cylinder wall and blades.
When the full-automatic small loading mixer is working, it is not allowed to put hands into the rotating mixing drum, and it is strictly prohibited to put hands into the connection part of the main discharge chute and the extended discharge chute, so as to avoid accidents. The abrasion of mixing blades should be checked regularly and repaired and replaced in time. All relevant safety operation specifications. The driver of concrete mixer truck must be trained professionally, and the operator without certificate is not allowed to work.
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The main reasons for the automatic small loading mixer are as follows:
1. Engine failure of full-automatic small loading mixer: the engine cannot be started and the power take-off is damaged.
2. Faults of top loading tank: damaged transmission shaft, oil pump failure, dirty or insufficient hydraulic oil, motor failure, reducer failure, loose control rod, etc.