1. Check whether the seal of the digging mixer has large cracks or cracks. If the seal is broken, it can be repaired with adhesive. In particular, using adhesive on the seal can easily fill large crack areas. Of course, if the seal is seriously damaged or damaged, please replace it with a new one.

2.在驾驶员用混凝土混合清洁剂清洁门窗密封条之后，应涂一层渗透防护剂，以防止密封条老化，并显着提高密封条的密封性能。另外，密封条之间的间隙容易充满灰尘和锈蚀。为此，您需要使用刷子灰尘。

2. After the driver uses the concrete mixed cleaner to clean the door and window sealing strip, a layer of penetrating protective agent shall be applied to prevent the sealing strip from aging and significantly improve the sealing performance of the sealing strip. In addition, the gap between the sealing strips is easy to be filled with dust and rust. To do this, you need to use a brush to remove dust.

3.更换整个机身时，有必要在焊接部分的重叠部分涂一层密封剂。粘合剂层的厚度约为1mm，并且粘合剂层必须没有不适当的粘合，气泡和其他缺陷。地板的整个底面和前轮盖的底面应涂3mm-4mm的弹性涂层和防腐涂层。这些措施不仅显着提高了车身的密封性能，减缓了车身的腐蚀速度，而且大大提高了乘坐舒适性。

3. When replacing the whole fuselage, it is necessary to apply a layer of sealant on the overlapping part of the welding part. The thickness of the adhesive layer is about 1mm, and the adhesive layer must be free of improper adhesion, bubbles and other defects. The entire underside of the floor and the underside of the front wheel cover shall be coated with 3mm - 4mm elastic coating and anti-corrosion coating. These measures not only significantly improve the sealing performance of the body, slow down the corrosion rate of the body, but also greatly improve the ride comfort.

4.密封门和门是一个相对困难的部分。密封要求相对严格。要密封的部分相对较长，要密封的部分的横截面形状不相同，并且门经常被打开和关闭。在混凝土搅拌车上安装3向和4向密封垫，并安装前支柱和顶梁侧梁的4密封结构。这种类型的多通道密封通常放置在前门之间的间隙中，除了具有密封功能外，还具有减少车辆噪音的作用。

4. Sealing doors and doors is a relatively difficult part. The sealing requirements are relatively strict. The part to be sealed is relatively long, the cross section shape of the part to be sealed is different, and the door is often opened and closed. Install 3-way and 4-way sealing gaskets on the concrete mixer, and install the 4-way sealing structure of the front strut and the side beam of the top beam. This type of multi-channel seal is usually placed in the gap between the front doors. In addition to the sealing function, it also has the function of reducing vehicle noise.

5.车窗玻璃损坏后，驾驶员应在更换玻璃时检查密封条是否损坏。除了能够轻松地拉起和提起车窗玻璃外，还应注意车窗玻璃周围的密封，因为维修后车窗通常不会恢复其原始形状。如果玻璃与玻璃罐之间的间隙不均匀，则橡胶条在玻璃与玻璃罐之间的接触不良，驱动器很容易用手拉动密封圈。

5. After the window glass is damaged, the driver should check whether the sealing strip is damaged when replacing the glass. In addition to being able to easily pull up and lift the window glass, attention should also be paid to the sealing around the window glass, because the window usually does not return to its original shape after maintenance. If the gap between the glass and the glass can is uneven, the rubber strip between the glass and the glass can has poor contact, and the driver can easily pull the seal ring by hand.

6.更换车顶时，驾驶员必须先压装并在车顶周围涂上一层导电密封胶。焊接后，在流道和接头上涂卷边胶。这不仅有助于身体。密封件可以防止因法兰焊缝中积水而引起的过早腐蚀。

6. When replacing the roof, the driver must press and apply a layer of conductive sealant around the roof. After welding, apply crimping adhesive on the runner and joint. This not only helps the body. The seal can prevent premature corrosion caused by water accumulation in the flange weld.

7.挖掘搅拌机的天窗是大多数家庭用车的基本配置。当您打开汽车的天窗时，橡胶密封导轨会暴露在空气中，这不可避免地会积聚灰尘，甚会进入小砾石中。长期使用后，天窗可能会因磨损而变形，排水口可能会堵塞。

7. The skylight of the digging mixer is the basic configuration of most family cars. When you open the sunroof of the car, the rubber sealing guide rail will be exposed to the air, which will inevitably accumulate dust and even enter the small gravel. After long-term use, the sunroof may be deformed due to wear and the water drain may be blocked.