1. The amount of water in the car wash pool is not enough: add water in the car wash pool.

2.吸入管的进气口被堵塞或堵塞；如果发生这种情况，您可以检查并拧紧管道。不要呼吸空气。

2. The air inlet of the suction pipe is blocked or blocked; if this happens, you can check and tighten the pipe. Don't breathe air.

3.燃油箱中的油位过低，并且油位中的空气被吸入泵中；如果发生这种情况，您可以添加带有相同标签的液压油。

3. The oil level in the fuel tank is too low, and the air in the oil level is sucked into the pump; if this happens, you can add hydraulic oil with the same label.

4.泵安装支架的刚性不足，工作时会产生振动和噪音；如果发生这种情况，可以加固机油泵支架。

4. The rigidity of the pump mounting bracket is insufficient, which will produce vibration and noise during operation; if this happens, the oil pump bracket can be reinforced.

5.滤芯堵塞会导致吸油困难或吸油不足；如果发生这种情况，则可以清洗或更换滤芯。

5. Blockage of filter element will lead to difficulty in oil absorption or insufficient oil absorption; if this happens, the filter element can be cleaned or replaced.

6.油冷却风扇未打开。办法：打开冷却风扇。

6. The oil cooling fan is not turned on. Solution: turn on the cooling fan.

7.液压油不符合要求或油的粘度过大；如果发生这种情况，请更换符合标签要求的低粘度液压油。

7. The hydraulic oil does not meet the requirements or the viscosity of the oil is too high; if this happens, please replace the low viscosity hydraulic oil that meets the label requirements.

8.储罐中有固态混凝土。如果发生这种情况，请及时清理并铲起。

8. There is solid concrete in the tank. If this happens, clean up and shovel in time.

9.输入法兰与万向传动轴之间的连接，万向传动轴与取力器之间的连接角度过大，松开时会产生噪音；如果发生这种情况，请及时检查并拧紧。

9. The connection between the input flange and the cardan drive shaft, and the connection angle between the cardan drive shaft and the power take-off is too large, which will produce noise when loosening; if this happens, please check and tighten it in time.