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Heavy Vehicle (Vehicle Standards) National Regulation
sch.3-sec.29Attachment of couplings and drawbar eyes on road trains
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sch.3-sec.29 Attachment of couplings and drawbar eyes on road trains
A drawbar-type coupling, or drawbar eye, used in a road train must be built and positioned so— when the road train is moving, the drawbar can move at least 15º upwards or downwards from the position it occupies when the road train is parked on level ground; and the pivot point of the coupling is not more than 300mm forward of the rear of the trailer to which it is attached; and it is at a height of at least 800mm, but not more than 950mm, when the road train is unloaded and parked on level ground.
- (a) when the road train is moving, the drawbar can move at least 15º upwards or downwards from the position it occupies when the road train is parked on level ground; and
- (b) the pivot point of the coupling is not more than 300mm forward of the rear of the trailer to which it is attached; and
- (c) it is at a height of at least 800mm, but not more than 950mm, when the road train is unloaded and parked on level ground.