Through calculation and analysis, the reason for the bending of the piston rod is that both ends of the boom cylinder are inclined with the frame and boom, and the support width is too small, indicating that the assembly adjustment clearance is inappropriate or the assembly clearance is too large. If the side is seriously worn, the support width shall be increased; The accumulation of deposits at the lower end of the cylinder block and the wear at the lower end of the boom cylinder show that there is a large accumulation of deposits and large rotational friction.

改进包括：

Improvements include:

1.增加支撑宽度，一般的支撑宽度是活塞杆直径的1.21.5倍。

1. Increase the support width. The general support width is 1.2 to 1.5 times the diameter of the piston rod.

2.在组装过程中，请充分利用调节垫，以确保动臂油缸两端与机架和动臂之间的间隙和对齐，并提高调节垫材料的耐磨性。

2. During assembly, please make full use of the adjusting pad to ensure the clearance and alignment between the two ends of the boom cylinder and the frame and boom, and improve the wear resistance of the adjusting pad material.

3.完善排放结构；增加开孔距离H1和出料板的倾斜角度α，减少毛坯的堆积，有利于物料的顺利出料；增加动臂油缸下端对主机的排放。距离H2是为了便于大型石材的排出。

3. Improve the emission structure; Increase the opening distance H1 and the inclination angle of the discharge plate α， Reduce the accumulation of blanks, which is conducive to the smooth discharge of materials; Increase the discharge of the lower end of the boom cylinder to the main engine. The distance H2 is to facilitate the discharge of large stones.

4.说明手册规定了定期积聚的物料的要求。改进后，活塞杆不再弯曲。

4. The instruction manual specifies the requirements for periodic removal of accumulated materials. After improvement, the piston rod is no longer bent.

鲁樽自动上料搅拌车发动机水温过高

The engine water temperature of Lutun automatic feeding mixer is too high

1.鲁樽自动上料搅拌车在普通道路上使发动机过热。它应尽快降低速度，将汽车开到树荫下，或开到相对凉爽的地方停下汽车，但不要急于熄火。

1. The engine of Lutun automatic feeding mixer truck overheats on ordinary roads. It should reduce the speed as soon as possible, drive the car to the shade of trees, or drive to a relatively cool place to stop the car, but don't rush to stop the engine.

2.打开机盖，让发动机以怠速运行，等待发动机温度逐渐恢复正常。发动机水温恢复正常后，关闭发动机。然后等待一会儿，直到发动机的水温充分下降，然后检查发动机的冷却水量。

2. Open the engine cover, let the engine run at idle speed, and wait for the engine temperature to gradually return to normal. When the engine water temperature returns to normal, turn off the engine. Then wait for a while until the water temperature of the engine drops sufficiently, and then check the cooling water volume of the engine.

3.此时，鲁樽自动上料搅拌车发动机的冷却水量可能严重不足。按照规定的量补充冷却水后，检查冷却系统以确保没有其他故障，您可以启动发动机并继续行驶。还要检查水箱百叶窗是否被异物堵塞，风扇叶片的工作状况，发动机皮带是否打滑以及发动机水泵的运行。

3. At this time, the cooling water of the engine of Lutun automatic feeding mixer may be seriously insufficient. After replenishing the cooling water according to the specified amount, check the cooling system to ensure that there are no other faults. You can start the engine and continue driving. Also check whether the shutter of the water tank is blocked by foreign matters, the working condition of the fan blade, whether the engine belt slips and the operation of the engine water pump.