The full-automatic mixer of concrete mixer has a large workload, which is very helpful for users to have a certain maintenance knowledge. Today, we will automatically cause oil truck leakage, analyze the causes and take corresponding measures.

1.使用时间长，油封正常磨损。

1. The service time is long and the oil seal is worn normally.

处理计划：更换新的油封。

Treatment plan: replace the oil seal with a new one.

2.长期未更换液压油或滤芯的质量不合格。液压油变脏，油封加速。

2. The hydraulic oil has not been replaced for a long time or the quality of the filter element is unqualified. The hydraulic oil becomes dirty and the oil seal accelerates.

处理计划：尽快更换液压油和滤芯。

Treatment plan: replace the hydraulic oil and filter element as soon as possible.

3.液压油变质或乳化，润滑性能降低，并且油封的磨损加速。

3. The hydraulic oil is deteriorated or emulsified, the lubrication performance is reduced, and the wear of the oil seal is accelerated.

处理计划：尽快更换液压油和滤芯。在严重的情况下，需要清洁系统。

Treatment plan: replace the hydraulic oil and filter element as soon as possible. In severe cases, the system needs to be cleaned.

4.传动轴的动平衡无效，摆动量大，导致主轴油封偏心。

4. The dynamic balance of the transmission shaft is invalid and the swing is large, resulting in the eccentricity of the main shaft oil seal.

处理方案：及时纠正或更换驱动轴。

Solution: correct or replace the drive shaft in time.

5.泵支架松动，焊接松动或泵固定螺栓松动，这会导致液压泵的整体振动和油封的磨损。

5. Loose pump support, loose welding or loose pump fixing bolts will lead to overall vibration of hydraulic pump and wear of oil seal.

处理计划：经常检查，隐患，防止并避免故障。

Treatment plan: check frequently, eliminate hidden dangers, prevent and avoid faults.

6.系统不稳定，回油管或散热器被堵塞，导致泵电机腔的压力升高，导致油封泄漏。

6. The system is unstable and the oil return pipe or radiator is blocked, resulting in the pressure rise in the pump motor chamber and oil seal leakage.

处理计划：堵塞并保持回油周期稳定。

Treatment plan: eliminate blockage and keep the oil return cycle stable.

7.散热器不散热，会导致机油温度过高，粘度和润滑性降低以及油封过热而导致密封失效。

7. If the radiator does not dissipate heat, the oil temperature will be too high, the viscosity and lubricity will be reduced, and the oil seal will be overheated, resulting in seal failure.

方案：及时散热器故障，尽快冷却系统，并防止泵马达磨损。如有必要，停止并熄灭，然后用水冲洗泵马达和散热器外壳以将其冷却。

Solution: eliminate the radiator failure in time, cool the system as soon as possible, and prevent the pump motor from wearing. Stop and turn off if necessary, and then flush the pump motor and radiator housing with water to cool it.

8.冬季预热不足，机油温度太低，机油和油封未达到工作温度。

8. Insufficient preheating in winter, too low oil temperature, and the oil and oil seal do not reach the working temperature.

解决方方案案：启动车辆时，以空转速度停止油箱十到二十分钟，然后在燃油温度正常后使油箱工作。

Solution: when starting the vehicle, stop the fuel tank at idle speed for 10 to 20 minutes, and then make the fuel tank work after the fuel temperature is normal.

混凝土搅拌车全自动搅拌车的油封轴端油封是易损件，需要定期检查和维护。在正常操作期间，可以避免和避免许多机油泄漏。如果有泄漏，请不要慌张，冷静下来，仔细查找导致油泄漏的原因，并立即泄漏。

The oil seal at the shaft end of the full-automatic mixer of the concrete mixer is a vulnerable part, which needs regular inspection and maintenance. Many oil leaks can be avoided and avoided during normal operation. In case of leakage, please don't panic, calm down, carefully find out the cause of oil leakage and eliminate the leakage immediately.