How to repair the steering wheel power steering pump of automatic feeding mixer?

如果自动上料搅拌车存在问题，而无法找到故障原因，则方向增压泵将受到不利影响，并且更有可能造成损坏。

If there is a problem with the automatic charging mixer and the cause of the failure cannot be found, the directional booster pump will be adversely affected and more likely to be damaged.

自动上料搅拌车转向助力泵，通常称为动力转向泵，是转向助力系统和转向系统的核心。对于重型清障车，由于机械转向力和驾驶员的劳动强度，液压转向系统变得更加重要。

The power steering pump of automatic feeding mixer, usually called power steering pump, is the core of power steering system and steering system. For heavy-duty wrecker, hydraulic steering system becomes more important because of mechanical steering force and driver's labor intensity.

通用叶片泵由在内部腔体中具有双曲线的泵体，带槽转子和叶片组成。其中一些安装在发动机后部的飞轮壳上，并由正时齿轮驱动。当发动机运转时，增压泵的转子被驱动旋转，叶片在离心力的作用下沿着叶片槽向外移动，在转子旋转过程中紧靠泵体的内壁，并在叶片之间大于封闭空间的体积不断增加。实现了吸油和液压过程。转子每旋转一圈，吸油量和油压就完成两次。泵体还具有阀以限制压力。当转向系统上的外部负载增加并且液压压力上升到一定值时，阀将打开，并且负载将被移除。节流阀和流量控制阀也安装在泵体内，因此增压泵的容量几乎恒定。

The general vane pump consists of a pump body with hyperbola in the inner cavity, a grooved rotor and blades. Some of them are mounted on the flywheel housing at the rear of the engine and are driven by timing gears. When the engine is running, the rotor of the booster pump is driven to rotate, and the blades move outward along the blade slot under the action of centrifugal force. During the rotor rotation, it is close to the inner wall of the pump body, and the volume between the blades larger than the closed space increases continuously. The oil absorption and hydraulic process are realized. Every time the rotor rotates, the oil absorption and oil pressure are completed twice. The pump body also has a safety valve to limit the pressure. When the external load on the steering system increases and the hydraulic pressure rises to a certain value, the relief valve will open and the load will be removed. Throttle valve and flow control valve are also installed in the pump body, so the capacity of booster pump is almost constant.

由于转向助力泵的使用和维护尤为重要，因此必须执行以下操作：

Since the use and maintenance of the power steering pump is particularly important, the following operations must be carried out:

1.在使用过程中，如果转向泵助力器泄漏，震动或发出异常声音，则有必要对其进行检查并逐步。

1. In the process of use, if the steering pump booster leaks, vibrates or makes abnormal sound, it is necessary to check and gradually eliminate it.

2.自动上料搅拌车工作一段时间后，应及时更换液压油滤清器，特别是在安装新泵后，在2500-3000 km之后应更换液压油。

2. After the automatic feeding mixer works for a period of time, the hydraulic oil filter should be replaced in time, especially after the installation of a new pump, the hydraulic oil should be replaced after 2500-3000 km.

3.定期检查储油罐中的油位。清洁液压油需要及时补充。维护期间必须用酒精清洁储罐过滤器元件。

3. Regularly check the oil level in the oil tank. Clean hydraulic oil needs to be replenished in time. The tank filter elements must be cleaned with alcohol during maintenance.

4.正确选择液压油对于确保增压泵的率和长寿命关重要。

4. Correct selection of hydraulic oil is very important to ensure high efficiency and long life of booster pump.

如何更换机油？方法如下：

How to change the oil? The method is as follows:

支撑前轴并将车轮移离地面。拆下燃油箱盖，回油管的放油塞和回转单元。高速启动发动机约10分钟，并排空储油箱，方向盘增压泵和转向器液压油。停止发动机，然后将方向盘向左和向右旋转，以排出所有剩余的液压油。更换滤芯，加高液压油并从液压系统中排出空气。

Support the front axle and move the wheels off the ground. Remove fuel tank cap, drain plug of return line and rotary unit. Start the engine at high speed for about 10 minutes and drain the oil tank, steering wheel booster pump and steering gear hydraulic oil. Stop the engine and turn the steering wheel to the left and right to drain all remaining hydraulic oil. Change the filter element, increase the hydraulic oil and exhaust air from the hydraulic system.

自动上料搅拌车方向盘动力转向泵的维护情况了解就是这样，你明白了吗？

Automatic loading mixer steering wheel power steering pump maintenance situation understand that is it, do you understand?