NTIn ForceRegulation
MOTOR VEHICLES (STANDARDS) REGULATIONS - AUSTRALIAN VEHICLE STANDARDS RULES
162D-value of a fifth wheel coupling
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162 D-value of a fifth wheel coupling In testing a fifth wheel coupling built for a 75 millimetre kingpin used in a B-double or road train to decide whether its D-value complies with rule 161(1), the longitudinal movement (after readjusting the jaws of the coupling using a kingpin built to the dimensions mentioned in rule 165(3)(a)) must not be over 4 millimetres.