Special vehicles generally have special signs or special models. Refers to the vehicles that undertake special duties and hang special vehicle number plates, install and use alarms and sign lamps. Such as ambulances, fire engines, police cars, engineering rescue vehicles, military surveillance vehicles, etc.
Preventive measures for special vehicle transportation
1, pay attention to the role of the gasket. Gaskets between parts of automobile fixing parts (such as joint end face, end cover, shell, cover pad, flat enamel cover plate, etc.). ) plays the role of leakage prevention and sealing. If the materials, production quality and installation do not meet the technical specifications, it will not play a role in sealing and leakage prevention, and even accidents will occur. Such as oil pan or valve cover, because of the large contact area, it is difficult to compress, resulting in oil leakage.
2. All kinds of fastening nuts on the vehicle should be tightened according to the specified torque. If the gasket is too loose, it will leak water; Too tight will make the metal protrusion or thread around the screw hole slip, resulting in oil leakage. In addition, if the oil drain plug of the oil pan is not tightened or loosened, it is easy to cause oil loss, and then the engine damage accident of "burning tile and holding shaft" occurs.
The above contents refer to Baidu Encyclopedia-Special Vehicles.