After the engine of the mixing truck is started, the mixing drum should be allowed to run at low speed for about 10 minutes to raise the hydraulic oil temperature to above 20 ℃ before starting operation.

搅拌车装料前应将搅拌筒反转，保证仓斗内的积水和杂物排出，这样可以确保混凝土的质量，保证施工质量。

Before loading the mixer truck, the mixing drum should be reversed to ensure the discharge of accumulated water and debris from the hopper, which can ensure the quality of concrete and construction.

搅拌车在运输混凝土时，要保证滑斗放置牢固，防止因松动造成摆动，在行进中打伤行人或影响其它车辆正常运行。在运输过程中，平坦路面上搅拌筒转速保证在2-3转/分，行驶在侧倾坡度大于50的路面，或左右晃动较大的路面时，应停止搅拌旋转，待路况好转后再恢复搅拌旋转。

When transporting concrete, the mixer truck should ensure that the sliding bucket is firmly placed to prevent swinging caused by looseness, which may cause injuries to pedestrians or affect the normal operation of other vehicles. During transportation, the speed of the mixing drum should be ensured to be 2-3 revolutions per minute on a flat road surface. When driving on a road surface with a side slope greater than 50 or a road surface with significant left and right shaking, the mixing rotation should be stopped and resumed after the road conditions improve.

混凝土搅拌车运送混凝土的时间不能超过搅拌站规定的时间。运送混凝土途中，搅拌筒不得长时间停转，以防混凝土产生离析现象。司机应时常观察混凝土情况，发现异常及时通报调度室，申请做出处理。

The time for transporting concrete by concrete mixer trucks cannot exceed the time specified by the mixing station. During the transportation of concrete, the mixing drum should not be stopped for a long time to prevent segregation of the concrete. Drivers should regularly observe the concrete condition, promptly report any abnormalities to the control room, and apply for handling.

搅拌罐车装有混凝土时，在现场停滞时间不得超过1小时，如超时应立即要求现场负责人给予及时处理。

When the mixing tank truck is loaded with concrete, the standing time on site shall not exceed 1 hour. If it exceeds the time limit, the on-site person in charge shall be immediately requested to provide timely treatment.

搅拌车运送混凝土塌落度不得低于8cm。从混凝土入罐到排出，气温高时不得超过2小时必须排出，阴雨天气温度低时，不得超过2.5小时。

The slump of concrete transported by mixer trucks shall not be less than 8cm. From the pouring of concrete into the tank to the discharge, it must not exceed 2 hours when the temperature is high, and it must not exceed 2.5 hours when the temperature is low in rainy weather.

搅拌车在排出混凝土之前，应使搅拌筒在10-12转/分的转速下转动1分钟，再进行排料。

Before discharging concrete, the mixing truck should rotate the mixing drum at a speed of 10-12 revolutions per minute for 1 minute before discharging.

混凝土搅拌车出料完毕，应立即用随车的软管放水将进料口、出料斗及出料溜槽等部位冲洗干净，排去粘结在车身各处的污物及残留混凝土，再向搅拌筒内注水150-200L的清水，在返回途中要让搅拌筒慢速转动，以清洗内壁，避免残余料渣附在筒壁和搅拌叶上，并在再一次装料前将这些水放掉。

After the discharge of the concrete mixer truck is completed, the inlet, discharge hopper, and discharge chute should be immediately rinsed with water from the accompanying hose to remove any dirt and residual concrete adhering to the vehicle body. Then, 150-200L of clean water should be injected into the mixing drum. On the way back, the mixing drum should be slowly rotated to clean the inner wall and prevent residual slag from adhering to the drum wall and mixing blades. This water should be drained before loading again.

混凝土搅拌车运送混凝土时，发动机转速在1000-1400转/分范围内工作，以使发动机有扭距，在运送混凝土过程中，车速不得超过40km/h，以保行车。

When transporting concrete with a concrete mixer truck, the engine speed should be within the range of 1000-1400 rpm to ensure maximum torque. During the transportation of concrete, the speed should not exceed 40km/h to ensure driving safety.

水泥搅拌车工作完毕，应把搅拌筒内部和车身清洗干净，不能使剩余的混凝土留在筒内。

After the cement mixer truck is completed, the inside of the mixing drum and the vehicle body should be cleaned thoroughly, and the remaining concrete should not be left inside the drum.

水泥搅拌车在水泵工作时，禁止空转，连续使用时不要超过15分钟。

When the cement mixer truck is working with the water pump, it is prohibited to idle and should not exceed 15 minutes of continuous use.

混凝土搅拌车水箱的水量要经常保持装满，以备急用，冬季停机后，应将水箱、水泵、水管、搅拌筒内的水放净，并停放在朝阳、不积水的地方，以免冻坏机械。

The water volume in the water tank of the concrete mixer truck should be regularly kept full for emergency use. After stopping in winter, the water tank, water pump, water pipe, and mixing drum should be drained and parked in a sunny and non stagnant area to avoid freezing and damaging the machinery.

搅拌车在冬季应及时安装保温套，并使用防冻液对搅拌车加以保护，根据天气变化更换燃油标号，确保机械的正常使用。

The mixing truck should be promptly installed with insulation sleeves in winter, and protected with antifreeze. The fuel label should be changed according to weather changes to ensure the normal use of the machinery.

在检查、修理水泥搅拌车液压传动部分时，应使发动机和液压泵在没有压力的情况下进行。

When inspecting and repairing the hydraulic transmission part of the cement mixer truck, the engine and hydraulic pump should be operated without pressure.

在调整中科搅拌车各部间隙、行程、压力时，应由专职员检查同意;更换机件时，必须由部长或主管经理签字，否则出现问题后追究有关人员责任

When adjusting the clearance, stroke, and pressure of each part of the Zhongke mixing truck, it should be checked and approved by a full-time safety officer; When replacing machine parts, it must be signed by the minister or manager in charge, otherwise the relevant personnel will be held responsible after any problems occur