The service time is too long and the oil seal is normally worn. Solution: replace with a new oil seal.

油长期未更换、滤芯质量不合格，油品过脏，从而加快了油封磨损情况。方案：尽快更换液压油、滤芯。

The oil has not been replaced for a long time, the quality of the filter element is unqualified, and the oil is too dirty, which speeds up the wear of the oil seal. Solution: replace the hydraulic oil and filter element as soon as possible.

传动轴平衡失效，摆动量大，从而引起了主轴摆动油封偏磨。处理方案：及时纠正、更换转动轴。

The balance failure of the transmission shaft and the large swing caused the eccentric wear of the main shaft swing oil seal. Treatment plan: correct and replace the rotating shaft in time.

液压油变质、乳化，从而导致润滑性能下降，加快了油封磨损情况。方案：尽快更换液压油、滤芯，严重时需要清理系统。

The deterioration and emulsification of hydraulic oil lead to the decline of lubrication performance and accelerate the wear of oil seal. Solution: replace the hydraulic oil and filter element as soon as possible, and clean the system when it is serious.

泵支架松动、开泵、泵固定螺栓松动，进而引起液压泵出现整体抖动情况且油封出现磨损现象。方案：经常检查并排除自动上料搅拌车中可能出现的故障，预防并避免故障的发生。

The looseness of pump bracket, pump opening and pump fixing bolts lead to the overall shaking of hydraulic pump and the wear of oil seal. Solution: often check and eliminate the possible faults in the automatic feeding mixer, prevent and avoid the occurrence of faults.

自动上料搅拌车系统的回油不通畅，回油管、散热器发生堵塞，进而导致马达壳中压力增加，引起油封出现漏油情况。方案：排除堵塞并保持回油循坏保持通畅。

The oil return of the automatic feeding mixer system is not smooth, and the oil return pipe and radiator are blocked, which leads to the increase of pressure in the motor housing and oil leakage of the oil seal. Solution: remove the blockage and keep the return oil circulation unobstructed.

散热器不散热导致油温过高，粘度、润滑性下降，油封过热密封失效等问题的出现。方案：排除散热器故障，为系统进行降温过程，避免泵马达磨损。严重时还要停车熄火，用水冲泵马达、散热器壳体达到降温效果。

The radiator does not dissipate heat, resulting in high oil temperature, viscosity, lubricity decline, oil seal overheating, seal failure and other problems. Solution: remove the radiator fault, cooling the system to avoid pump motor wear. In serious cases, the engine should be shut down and the pump motor and radiator shell should be flushed with water to achieve cooling effect.

冬季起车时若预热不足，导致油温过低，油液、油封未达到理想工作温度。处理方案：在起车时停罐怠速运转10min20min，待油温正常后再转罐工作。

In winter, if the preheating is not enough, the oil temperature is too low, and the oil and oil seal do not reach the ideal working temperature. Treatment scheme: stop the tank and run at idle speed for 10min to 20min when starting, and then turn the tank to work after the oil temperature is normal.

自动上料搅拌车的液压泵轴端油封属于易损件，若严格按照相关规范进行操作，其实很多漏油现象都会得到有效预防，若出现漏油问题，要冷静查找具体原因并进行处理即可。

The oil seal of the hydraulic pump shaft end of the automatic feeding mixer is a vulnerable part. If it is operated in strict accordance with the relevant specifications, in fact, many oil leakage phenomena will be effectively prevented. If there is an oil leakage problem, it is necessary to calmly find out the specific reasons and deal with it.