1. Before starting the mixer, the operating handle of the mixing drum should be placed in the "stop" position.
2.搅拌车启动发动机后，应将搅拌筒低速旋转约10分钟，以使液压油温度升20°C以上才能工作。
2. After the mixer starts the engine, rotate the mixer drum at low speed for about 10 minutes to make the hydraulic oil temperature rise above 20 ° C.
3.当搅拌车停在空旷的地方时，应在装载前将搅拌桶倒转以排出水和碎屑，以确保混凝土的质量。
3. When the mixer truck stops in an open place, the mixing bucket shall be reversed before loading to discharge water and debris, so as to ensure the quality of concrete.
4.在搅拌车运输混凝土时，必须确保牢固放置滑动铲斗，以防止其因松动而摇摆，伤害行人或影响其他车辆的正常运行。
4. When the concrete is transported by the mixer truck, the sliding bucket must be firmly placed to prevent it from swinging due to looseness, injuring pedestrians or affecting the normal operation of other vehicles.
5.当搅拌车装载混合混凝土时，搅拌桶的速度为2-10 rpm。在运输过程中，在平坦道路上搅拌桶的速度保证为2-3 rpm。在大于50的边坡上行驶时在路面或左右晃动较大的道路上，应停止混合旋转，并在道路状况改善后恢复混合旋转。
5. When the mixer truck loads the mixed concrete, the speed of the mixing drum is 2-10 rpm. During transportation, the speed of the mixing drum is guaranteed to be 2-3 rpm on a flat road. When driving on the slope of more than 50, the mixing rotation should be stopped on the road or the road with large left and right shaking, and the mixing rotation should be restored after the road condition is improved.
6.混凝土搅拌车运输混凝土的时间不应超过搅拌站规定的时间。在运输混凝土的过程中，不得长时间停止搅拌桶以防止混凝土偏析。
6. The time of transporting concrete by concrete mixer truck shall not exceed the time specified by mixing station. During the transportation of concrete, the mixing bucket shall not be stopped for a long time to prevent concrete segregation.
7.当搅拌车装满混凝土时，现场停滞时间不得超过1小时。如果时间到了，应要求现场负责人及时处理。
7. When the mixer truck is full of concrete, the on-site dead time shall not exceed 1 hour. If the time is up, the person in charge of the site shall be required to deal with it in time.
8.搅拌车运输的混凝土坍落度不得小于8厘米。从混凝土进入储罐开始到卸料，在高温下卸料时间不得超过2小时，在阴雨天气下则不得超过2.5小时。
8. The slump of concrete transported by mixer truck shall not be less than 8 cm. The time from concrete entering the storage tank to discharging shall not exceed 2 hours under high temperature and 2.5 hours under rainy weather.
9.在搅拌车卸出混凝土之前，搅拌筒在卸出前应以10-12 rpm的速度旋转1分钟。
9. Before the concrete is unloaded by the mixer truck, the mixing drum shall rotate at a speed of 10-12 rpm for 1 minute before unloading.
10.混凝土搅拌车完成卸料后，立即使用随车提供的软管冲洗进口，卸料斗和卸料斜槽，并粘在车体上的污垢和残留混凝土。将150-200L的清水倒入搅拌桶中。在返回途中，应缓慢旋转搅拌桶，以清洁内壁，并避免残留的炉渣粘附在搅拌桶壁和搅拌叶片上，并在再次注水之前先将水倒入。
10. After the concrete mixer truck finishes discharging, immediately use the hose provided with the truck to flush the inlet, discharge hopper and discharge chute, and remove the dirt and residual concrete adhered to the car body. Pour 150-200l clean water into the mixing bucket. On the way back, the mixing drum should be rotated slowly to clean the inner wall, and to avoid the residual slag adhering to the mixing drum wall and mixing blades, and the water should be poured into the mixing drum before the water is injected again.
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