Thursday, Apr 07, 2011 at 15:40
It appears that AS 4177.3 is for the coupling body, the relevant ADR for the ball is:
9. 50 mm ‘BALL COUPLINGS’
9.1. 50 mm ‘Ball Couplings’ intended for towing trailers with an ‘ATM’ of up to 3.5 tonnes must comply with the requirements of AS 4177.2 – 2004 50mm Towballs.
9.1.1. The marking requirements at clause 12.4 may be used instead of those in AS 4177.2 – 2004.
AS FOLLOWS:
12.4. Marking
12.4.1. Up to 3.5 tonnes ‘ATM’
Both parts of a ‘Coupling’ specifically designed for use between LA, LB, LC, LD category and sub category LEM towing vehicles and trailers up to 750kg ‘ATM’, or specifically designed for use between towing vehicles and trailers up to 3.5 tonnes ‘ATM’ must be marked with the following
information:
12.4.1.1. The ‘Coupling’ manufacturer’s name or trademark; and
12.4.1.2. the maximum allowable trailer ‘ATM’ and its units of measurement, kg for an ‘ATM’ up to 750 kg and tonnes otherwise), at which the ‘Coupling’ is rated; and
12.4.1.3. the words “use with model (identified model)”.
12.4.2. Over 3.5 tonnes ‘ATM’
Both parts of the ‘Coupling’ specially designed for use between towing vehicles and trailers over 3.5 tonnes ‘ATM’ must be marked with the following
information:
12.4.2.1. The ‘Coupling’ manufacturer’s name or trademark; and
12.4.2.2. the words “use with model (identified model)”; and
12.4.2.3. either the rated ‘D-value’, or the rated ‘D-value’ and ‘V-value’ (kN).
12.4.3. All markings must be stamped, moulded or printed with letters not less than 2.5mm high and must be visible when the ‘Coupling’ is installed and connected. The markings may be on a metal plate that is permanently affixed to the ‘Coupling’ or to the vehicle adjacent to the ‘Coupling’.
FollowupID:
723055