reg 18
In forceGeneral coupling requirements
Schedule 3Vehicle standards applying only to heavy combinations or particular heavy combinations
18 General coupling requirements
(1)
A fifth wheel coupling, the mating parts of a coupling, a kingpin or a towbar must not be used in a heavy combination for a load more than the manufacturer’s load rating.
(2)
A kingpin must be used in a heavy combination only with a fifth wheel coupling that has a corresponding jaw size.Example for subsection (2)—An adaptor must not be used to fit a kingpin to a fifth wheel coupling.
(3)
The mating parts of a coupling used in a heavy combination to connect a semitrailer to a towing vehicle must not allow the semitrailer to roll to an extent that makes the towing vehicle unstable.
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