This video will explain the parts of semi-trailers, and how they function. An inspection sticker for fuel is an essential element. It’s important to determine when the date expires since the oil is such an important part of the trailer. The trailer is attached to the truck via a small piece. This shaft is what you call it, and it is also where there is the kingdom lock. 5th wheel can be found within the area. It’s covered the wheel when turning. Airlines will join the bulkhead of the trailer. There is a place where you can get your emergency service lines. There’s a place for wiring. These essential components aid in keeping everything working. Safety locks also make sure nothing is left unattended. The tires should be at 100psi. This pressure should be kept by the trailer. If you notice an air leak inside the tire, it will show lighting that shines and you’ll see you must replenish them with air. This video will provide additional specifics. nlr9skdblb.