1. before starting the concrete mixing tank truck, the mixing cylinder operating handle shall be placed in the "stop" position.

2．自上料混凝土搅拌罐车起动发动机后，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 starting the engine of the concrete mixing tank truck, the mixing drum shall be turned for about 10 minutes at low speed, and the hydraulic oil temperature can be raised to above 20 ℃ before it can work.

3．自上料混凝土搅拌罐车在露天停放时，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 concrete mixing tank truck is parked in the open air, the mixing drum shall be reversed before loading to discharge the accumulated water and debris to ensure the quality of the concrete.

4 . 自上料混凝土搅拌罐车在运输混凝土时，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 self feeding concrete mixing tank truck shall ensure that the sliding bucket is firmly placed to prevent swinging due to looseness, injure pedestrians or affect the normal operation of other vehicles during the process of transportation.

5 . 自上料混凝土搅拌罐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 loading the concrete mixer truck to transport the mixed concrete, the speed of the mixing drum is 2-10 rpm. During the transportation, the speed of the mixing drum on the flat road surface shall be guaranteed to be 2-3 rpm, and the mixing rotation shall be stopped when the road surface with a slope of more than 50 or the left and right shaking is large, the mixing rotation shall be stopped and the mixing rotation shall be resumed after the road conditions are improved.

6 . 混凝土自上料混凝土搅拌罐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。

6. the time for concrete delivery from the concrete mixing tank truck shall not exceed the time specified in the mixing station. During the transportation of concrete, the mixing drum shall not stop rotating for a long time to prevent segregation of concrete. The driver shall observe the concrete situation from time to time, and report the abnormality to the dispatching room in time and apply for handling.

7 . 自上料混凝土搅拌罐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 concrete is installed in the truck, the time of stagnation on site shall not exceed 1 hour. If the time is out, the person in charge of the site shall be asked to deal with it in time.

8 . 自上料混凝土搅拌罐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 the concrete mixing tank truck from the feeding shall not be less than 8cm. From the concrete into the tank to discharge, the air temperature shall not exceed 2 hours, and it shall not exceed 2.5 hours in rainy weather when the temperature is low.

9 . 自上料混凝土搅拌罐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 concrete, the mixing drum shall be turned for 1 minute at 10-12 RPM before discharging the concrete before discharging.

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