Semi-trailer hood and semi trailer can be separated, when driving, need to connect, general semi-trailer hood and body connection is divided into two parts, respectively is the traction saddle and traction pin connection, and hung up front and half trailer electric road connection, connection when should pay attention to in the correct method of connection, and pay attention to do a good job of cleaning before the connection, Avoid the wrong connection. Let’s learn about how to connect the semi trailer with the trailer together with Custom semi trailer manufacturers.
How is the semi locomotive connected to the trailer?
The locomotive of the semi-trailer is called traction head. How to connect the traction head to the semi-trailer is the skill that every semi-trailer driver should master, especially for the driver who is engaged in sling transportation, the frequent pick and hang should pay attention to the details of the connection process, so as to ensure the safe and efficient completion of transportation. Semi-trailer locomotive connection semi-trailer is mainly divided into two parts:
1, traction saddle and traction pin connection
(1) Before connecting, apply the lubricating grease evenly. Check whether there is any additional foreign matter on the traction pin and traction board of the semi trailer to ensure the cleanliness of the traction board.
(2) Adjust the supporting legs so that the height of the semi-trailer traction board and the traction saddle is suitable. Typically, the center position of the semi-trailer traction board is 1-3 cm lower than that of the traction saddle on the upper plane.
(3) Operate the traction seat locking mechanism to make the locking block open and become a free state.
(4) When the semi-trailer locomotive regress, the center line of the semi-trailer locomotive and the semi-trailer shall be consistent, and the center line deviation of the two vehicles shall be limited to below 40mm. After the saddle port of the tractor is aligned with the traction pin, the tractor slowly backs up until the “click” sound is heard. When the lock block returns, the locomotive of the semi-trailer and the semi-trailer are successfully connected.
(5) Check whether the traction seat lock block is locked traction pin, whether the lock is firm; give the semitrailer a small advance to check that the connection is excellent.
2. Electric connection between the front of the semi-trailer and the semi-trailer
(1) The two air pipe joints on the head of the semi-trailer (commonly known as handshake) are respectively connected to the two air pipe joints on the semi-trailer.
(2) After the gas joints are connected with each other, it is necessary to unscrew the gas connection separation switch of the semi-trailer on the tractor-trailer, so that it is in the ventilation state, otherwise, air can not be supplied to the semi-trailer braking system, and the braking system can not work.
(3) Start the engine, observe the barometer in the cab, and raise the pressure in the gas reservoir of the tractor and semi-trailer to the specified pressure.
(4) Check whether there is air leakage in the air path, and check whether the braking system works properly.
(5) Insert the cable connection plug of the tractor into the seven-hole socket at the front end of the semi-trailer until it is placed on the seven-hole latch block.
(6) Check whether the electrodes are properly engaged, and confirm whether the side light taillight and additional lights are working properly.
Second, what are the precautions for connecting the semi-trailer locomotive?
1. Before connecting, carefully check whether there is sufficient grease on the saddle plate of the tractor. If there is no grease, it is necessary to apply grease.
2. The corresponding position of the center position of the upper plane of the semi-trailer traction board and the traction saddle of the tractor should not be too steep, otherwise it can not be connected occasionally, but also damage the traction seat, traction pin and related parts.
3. The gas connection of the semi-trailer should pay attention to the connection between the gas supply pipeline and the gas supply pipeline, and the connection between the control pipeline and the control pipeline. Typically, the installation is the same color, and the installation is not reversed.
4. After hanging the semi-hanging, confirm the normal operation of the instruments again before normal driving.