2025-01-13
Vehicle condition: lorries and passenger carrying vehicles Fifth Wheel
The fifth wheel coupling is used to connect a tractor unit to a trailer. It allows articulation between the tractor and trailer.A fifth wheel coupling relies on a kingpin. It is important to check that the kingpin locking mechanism is secure when recoupling. You should do this by attempting to move forward with the trailer brake applied. Also remember to connect the dog-clip which secures the kingpin release handle.