Before feeding, check whether there is water in the mixing drum. If there is ponding, control the engine speed at 700-1000rpm and turn the joystick to the discharge position to remove the ponding.
2、 预拌混凝土：
2. Ready mixed concrete:
a、 先注入总水量2/3的水；
a. First inject 2 / 3 of the total water volume;
b、 将1/2的粗骨料，1/2的砂，全部的水泥顺次送入搅拌筒，随后再将余下的1/2粗骨料和水送入；
b. Send 1 / 2 coarse aggregate, 1 / 2 sand and all cement into the mixing drum in sequence, and then send the remaining 1 / 2 coarse aggregate and water into the mixing drum;
c、 搅拌筒转速及搅拌时间“
c. Rotating speed and mixing time of mixing drum“
进料时搅拌筒的转速：6—10转/分；
Rotating speed of mixing drum during feeding: 6-10 R / min;
搅拌时搅拌筒的转速：6—10转/分；
Rotating speed of mixing drum during mixing: 6-10 R / min;
搅拌时间：10—16分钟。
Mixing time: 10-16 minutes.
e、 搅拌完毕后的搅动及出料方法与前述相同。
e. The stirring and discharging method after mixing is the same as the above.
3、供水操作：
3. Water supply operation:
采用水泵供水：
Water supply by water pump:
a、 先打开驾驶室里的水泵翘板开关，再打开蜂鸣开关，水泵即可工作，同时，蜂鸣器发出“嘟嘟嘟”的叫声；
a. First turn on the rocker switch of the water pump in the cab, and then turn on the buzzer switch. The water pump can work. At the same time, the buzzer sends out a "beep" sound;
b、 向搅拌筒内加水或冲洗料斗槽时，开启“料斗”阀门；
b. Open the "hopper" valve when adding water to the mixing drum or flushing the hopper tank;
c、 冲洗出料溜槽时，开启溜槽阀们；
c. When flushing the discharge chute, open the chute valve;
d、 冲洗车身时，先开启水枪阀门，而后可直接使用车尾水枪；采用气压供水：
d. When washing the vehicle body, first open the water gun valve, and then directly use the rear water gun; pneumatic water supply is adopted:
① 先打开驾驶室供气开关，当主车压力表达到8kg/cm2压力再打开供水系统手动气开关，当压力表达到2 kg/cm2压力时即可工作。
① First turn on the air supply switch in the cab. When the main vehicle pressure is expressed to 8kg / cm2, then turn on the manual air switch of the water supply system. When the pressure is expressed to 2kg / cm2, it can work.
② 向搅拌筒内加水，冲洗料斗槽、卸料槽时，先开启水箱底部阀门，再开启“料斗”阀门。
② When adding water to the mixing drum and flushing the hopper tank and discharge tank, first open the valve at the bottom of the water tank, and then open the "hopper" valve.
③ 冲洗车身时，先开启水箱底部阀门，后直接使用车尾冲洗装置。
③ When washing the vehicle body, first open the valve at the bottom of the water tank, and then directly use the rear washing device.
4、 装置驱动：
4. Unit drive:
一旦液压泵发生故障，可按以下紧急驱动步骤进行驱动：
Once the hydraulic pump fails, it can be driven according to the following emergency driving steps:
a、 转被好紧急驱动软管（即应急软管）；
a. Turn the emergency drive hose (i.e. emergency hose);
b、 将故障车（被驱动车）熄火，卸下液压马达上的高压油管接头；
b. Turn off the faulty vehicle (driven vehicle) and remove the high-pressure oil pipe connector on the hydraulic motor;
c、 将故障车（驱动车）熄火，将其液压马达的高压油管接头卸下，并与故障车上液压马达的对应接头软管相连接；
c. Turn off the fault vehicle (drive vehicle), remove the high-pressure oil pipe connector of its hydraulic motor and connect it with the corresponding connector hose of the hydraulic motor on the fault vehicle;
d、 发动救援车，将其操纵手柄拨出料位置，故障车内的混凝土即被排出；紧急驱动完毕后，将救援软管卸下，并恢复两车原状
d. Start the rescue vehicle, turn its control handle to the discharge position, and the concrete in the failed vehicle will be discharged; after the emergency drive is completed, remove the rescue hose and restore the two vehicles to their original state
5、操作是注意几个要点
5. Operation is to pay attention to several points
1、在混凝土搅拌车作业前需进行检查，确认转向、制动、灯光、信号系统灵敏有用，搅拌运输车滚筒和溜槽无裂纹和严重损伤，搅拌叶片磨损在正常范围内，底盘和副车架之间的U形螺栓连接良好。
1. Before the operation of the concrete mixer truck, it is necessary to check to confirm that the steering, braking, lighting and signal systems are sensitive and useful, the drum and chute of the mixer truck are free of cracks and serious damage, the wear of the mixing blades is within the normal range, and the U-shaped bolts between the chassis and the subframe are well connected.
2、了解施工要求和现场情况。选择行车路线和停车地点。
2. Understand the construction requirements and site conditions. Select the driving route and parking place.
3、在社会道路上行驶需遵守交通规则。转弯半径应符合使用说明书的要求，时速不大于15km。进站时速不大于5km。
3. Traffic rules shall be observed when driving on social roads. The turning radius shall meet the requirements of the operation manual, and the speed per hour shall not be greater than 15km. The speed at the station shall not be greater than 5km.
4、作业时，严禁用手触摸旋转的滚筒和滚轮。
4. During operation, it is forbidden to touch the rotating drum and roller by hand.
5、在混凝土搅拌车倒车卸料时，需服从指挥，注意周围人员，发现异常立即停车。
5. When reversing the concrete mixer for unloading, obey the command, pay attention to the surrounding personnel, and stop immediately in case of abnormalities.
6、严禁在高压线下进行混凝土搅拌车清洗作业。
6. It is strictly prohibited to clean the concrete mixer under the high-voltage line.
