Part 9Mechanical connections between vehicles

Part 9—Mechanical connections between vehicles

Note: This Part sets out various requirements to ensure that the couplings used when operating motor vehicles and trailers in combinations are strong enough to hold them together. The requirements in this Part relating to mechanical connections between vehicles in a road train do not apply to a road train that has a length of 19 metres or less.

Note: The following terms defined in clause 10.6 are used in this Part:

Australian Standard pole‑type trailer
axle prime mover
axle group rear overhang line
B‑double road train
centre of an axle group semi‑trailer
converter dolly single axle
dog trailer tow coupling overhang
drawbar turntable
D‑value 50 millimetre kingpin
fifth wheel coupling 75 millimetre kingpin
point of articulation 90 millimetre kingpin

Note: The following terms defined in section 4 of the Act are used in this Part:

motor vehicle trailer