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The first thing to do is to check the connection between the tractor and the semi-trailer. The traction height of the semi-trailer and the size of the traction pin, the radius of front gyration, the clearance radius, etc. must be matched with the traction vehicle. Inspection should be performed before connection. Carefully inspect the tractor's saddle's work surface and the trailer's tractor pins and sand, dirt, or other foreign matter on the traction slide. Is there enough grease? Check whether the locking block of the traction seat locks the traction pin, whether it is securely locked, advances the tractor slightly, checks whether the connection is good, and adjusts the supporting leg so that the traction sliding plate of the semi-trailer is suitable for the height of the traction saddle, generally a semi-trailer The traction skateboard is 10~30mm lower than the center of the upper plane of the traction saddle of the tractor. Otherwise, sometimes not only can not be connected, but also damage the tractor seat, tractor pins and related parts.
Before the semi-trailer hits the road, it is necessary to pay attention to checking whether the various items are already connected and to ensure sufficient safety before they can hit the road.
Before the semi-trailer goes on the road
Many friends are very concerned about what kind of conditions to meet in order to open a semi-trailer. In fact, as long as you have an A2 driver's license or above and an induction card, you can open a semi-trailer. What should you pay attention to before you hit the semi-trailer?