1. Check whether there are large cracks and cracks in the sealing place of concrete mixer truck. If the seal breaks, it can be repaired with adhesive. In particular, by using a special adhesive for sealing, it is easy to fill large crack areas. Of course, if the seal is seriously damaged or damaged, replace it with a new one.
2. After the driver cleans the sealing strips of doors and windows with the cleaning agent of small concrete mixer truck, a layer of anti permeability agent is applied to prevent the aging of the sealing strips, so as to greatly improve the sealing performance of the sealing strips. In addition, the gap between the sealing strips is easy to be filled with dust and rust. To do this, use a brush to remove dust.
3. When replacing the whole body, a layer of sealant should be applied on the overlapping part of the weld. The thickness of the adhesive layer should be about 1 mm and the adhesive layer should not have defects such as incorrect adhesion and bubbles. The whole lower surface of the floor and the lower surface of the front wheel housing shall be coated with 3mm to 4mm elastic coating and anti-corrosion coating. These measures not only greatly improve the sealing performance of the vehicle, slow down the corrosion rate of the body, but also greatly improve the ride comfort.
4. The sealing of the door and the main body is a relatively difficult part. The sealing requirements are strict. The parts to be sealed are relatively long, the cross-section shape of each sealing part is different, and the door is often opened and closed. Three way and four-way seals are installed on the concrete mixer truck, and the four seal structure of the front column and the side beam of the top beam are installed. This multi-channel seal is usually arranged in the front door gap. In addition to the sealing function, it also has the function of reducing car noise.
5. After the window glass is damaged, the driver should check whether the sealing strip is damaged when replacing the glass. As windows usually cannot be restored to their original shape after maintenance, in addition to ensuring that the window glass can be easily pulled or lifted, attention must also be paid to the sealing around the window glass. If the water tank in the gap between the glass and the glass is uneven, and the rubber strip has poor contact with the glass and the glass water tank, the driver can easily pull the sealing ring by hand.
6. When replacing the roof, the driver should first press fit and apply a layer of conductive sealant around the roof. After welding, the flanging glue is applied on the runner and joint. It's not just good for the body. The seal can prevent the premature corrosion of the automobile caused by the water accumulated in the flange weld.
7. The skylight of concrete mixer is the basic configuration of most household cars. When the car's skylight is opened, the rubber sealing strip will be exposed to the air and will inevitably accumulate dust, even small gravel. Long term use may cause the skylight to deform due to wear and block the drain hole. Therefore, it is very important to clean the track regularly and apply lubricant on the track.
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