1. Before starting the mixer, put the operating handle of the mixer in the "stop" position.

2.搅拌车起动发动机后，应使搅拌筒在低速下转动10分钟左右，使液压油温升到20℃以上后方可工作。

2. After the mixer starts the engine, the mixing drum should be rotated at a low speed for about 10 minutes to make the hydraulic oil temperature rise to more than 20 ℃.

3.搅拌车在露天停放时，装料前应将搅拌筒反转，将积水和杂物排出，以保证混凝土的质量。

3. When the mixer truck is parked in the open air, the mixing drum shall be reversed before loading to discharge the accumulated water and sundries, so as to ensure the quality of concrete.

4.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。

4. When transporting concrete, the mixer truck should ensure that the sliding bucket is firmly placed to prevent swinging due to loosening, hurting pedestrians or affecting the normal operation of other vehicles.

5.搅拌车装运搅拌好的混凝土时，搅拌筒转速为2-10转/分，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。

5. When the mixer truck transports the mixed concrete, the rotation speed of the mixing drum is 2-10 rpm. During transportation, the rotation speed of the mixing drum should be 2-3 rpm on the flat road. When driving on the road with a roll slope greater than 50 or the road with large left and right shaking, the mixing rotation should be stopped, and the mixing rotation should be resumed after the road condition improves.

6.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。

6. The delivery time of concrete by concrete mixer truck shall not exceed the specified time of mixing station. During the transportation of concrete, the mixing drum shall not stop for a long time to prevent concrete segregation.

7.搅拌车车内装有混凝土时，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。

7. When the mixer truck is equipped with concrete, the dead time at the site shall not exceed 1 hour. If it exceeds the time limit, the person in charge of the site shall be required to deal with it in time.

8.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。

8. The slump of concrete transported by mixer truck shall not be less than 8cm. From the time of concrete entering the tank to discharging, it must be discharged within 2 hours when the temperature is high, and within 2.5 hours when the temperature is low in rainy weather.

9.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。

9. Before discharging the concrete, the mixer should rotate the mixing drum at the speed of 10-12 rpm for 1 minute before discharging.

10.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。

10. After the concrete mixer is discharged, immediately flush the inlet, outlet hopper and discharge chute with the hose attached to the truck, remove the dirt and residual concrete bonded to the truck body, and then inject 150-200l clean water into the mixing drum. On the way back, let the mixing drum rotate slowly to clean the inner wall, so as to avoid the residual slag adhering to the wall and mixing blade, And discharge the water before loading again.

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