Check whether the steering system, clutch and brake system of the concrete mixer work normally. Check whether the lamp, alarm, turn indicator, brake light, wiper and other actions are normal and clean. Check whether the tire pressure is normal, there should be no rupture and damage, and the tire nut should not be loose;

◎检查滚道及托轮表面是否有异物，并及时清除；转动搅拌筒，查看是否有抖动、异响等；查看托轮紧固螺栓是否松动，托轮是否移位；滚道、托轮表面、托轮内部涂抹润滑脂。

Check whether there are foreign matters on the surface of the raceway and supporting roller, and remove them in time; rotate the mixing drum to check whether there is shaking and abnormal noise; check whether the fastening bolts of the supporting wheel are loose and whether the supporting wheel is displaced; apply grease on the surface of the raceway, supporting roller and inside of the supporting roller.

◎检查自上料混凝土搅拌罐车发动机机油、柴油、转向油、离合器油、制动油液及发动机冷却液等的加注情况，保障车辆的正常使用，并及时更换和清理机油滤芯、柴油滤芯、空气滤芯；

Check the filling of engine oil, diesel oil, steering oil, clutch oil, brake oil and engine coolant of concrete mixer truck to ensure the normal use of the vehicle, and timely replace and clean the oil filter element, diesel filter element and air filter element;

◎检查液压泵、马达、减速机是否有漏油现象，检查液压油、减速机齿轮油是否充足，有无变质，液压油滤芯是否满足使用要求，液压油散热器能否正常运行；

Check whether the hydraulic pump, motor and reducer have oil leakage, whether the hydraulic oil and reducer gear oil are sufficient and deteriorated, whether the hydraulic oil filter element meets the use requirements, and whether the hydraulic oil radiator can operate normally;

◎检查带有尿素的车辆，发动机熄火至少30S以内不要关闭车辆总电源，此时系统会将管道残余的尿素溶液排除，以避免结晶堵塞喷嘴；

Check the vehicle with urea. Do not turn off the main power supply of the vehicle within 30s after the engine is turned off. At this time, the system will remove the residual urea solution in the pipeline to avoid blocking the nozzle by crystallization;

◎检查进料斗、溜槽处是否有结料并清除；检查溜槽伸缩支撑旋转时是否伸缩正常，并往伸缩支撑及支撑摇杆处加注润滑脂；

Check whether there is material scaling at the feeding hopper and chute and remove it; check whether the expansion support of the chute rotates normally, and add grease to the telescopic support and support rocker;

◎检查完毕启动自上料混凝土搅拌罐车车辆进行预热，检查机油压力、发动机水温是否正常，底盘气路有无漏气情况；

After the inspection, start the concrete mixer truck for preheating, check whether the oil pressure and engine water temperature are normal, and whether the chassis air circuit has air leakage;

◎检查主、副车架连接螺栓是否松动、脱落；检查副车架及底盘大梁是否有开裂现象；

Check whether the main frame and auxiliary frame are loose or not;

◎检查传动轴连接螺栓是否松动，传动轴花键及十字轴处加注润滑脂；

Check whether the connecting bolts of the transmission shaft are loose, and add grease to the spline and cross shaft of the transmission shaft;

◎检查转动操纵手柄操纵是否卡滞，操纵各油嘴处加注润滑脂。

Check whether the operation of the rotary control handle is stuck, and add grease to each nozzle.