Before traveling, semi-trailers should undergo safety checks. But during the journey, it is inevitable to encounter unexpected situations. If there are problems when driving to a place where there is no village in front or a store in the back, it is called trouble. If you master some common problems and emergency response methods, it will solve a big problem, at least it can solve the urgent situation. Here are some common problems and emergency solutions for cardholders.

　　1. Oil pipe fracture. If the oil pipe of a semi-trailer breaks while driving, you can find a rubber or plastic pipe that matches the diameter of the oil pipe, temporarily connect it, and then tie both ends tightly with iron wire.

　　2. The oil pipe joint is leaking oil. Wrap cotton gauze around the lower edge of the horn, and then tighten the oil pipe nut and oil pipe joint; Bubble gum can be applied to the position of the oil pipe nut seat to provide a sealing effect.

　　3. Trailer oil and water leakage. According to the size of the sand hole, corresponding specifications of electrician fuses can be selected, and gently smashed into the sand hole to eliminate oil and water leakage.

　　4. When a motor vehicle is in use, if it is found that the fuel tank is leaking and damaged, the leaking area can be wiped clean, and bubble gum can be applied to the leaking area to temporarily block it.

　　5. The inlet and outlet hoses are broken. If the location of the rupture is small, you can wrap it up with soap on the cloth chart; If the location of the rupture is relatively large, the hose can be cut off and a bamboo or iron pipe can be placed in the middle, and tied tightly with iron wire.

　　6. The valve spring is broken. The broken spring can be removed, and the two broken sections can be installed in reverse to be ready for use. If the spring breaks into several sections, the adjustment screws of the intake and exhaust valves of the cylinder can be removed to close the valve.

　　7. The fan belt is broken. You can use wire to connect the broken belt together, or drive the car away after stopping for a while.