Document ID: chunk:federal_register_of_legislation:F2010C00153:body:0:p4
Version: federal_register_of_legislation:F2010C00153
Segment Type: other
Provision Reference: 
Character Range: 11973–15450

2004 Coupling Body for Ball Couplings.
10.1.1.                          The marking requirements at clause 12.4 may be used instead of those in AS 4177.3 – 2004.
11.                                      'HOOK COUPLINGS'
11.1.                                The hook part of 'Hook Couplings' must comply with the technical requirements of the standard referenced in clause 15.1.9; or
11.2.                                the dimensional requirements of the standard referenced in clause 15.1.9; and
11.2.1.                          clauses 12.2 - 12.4, except for clause 12.4.2.2.
11.3.                                The towing ring part of 'Hook Couplings' must comply with the technical requirements of the standard referenced in clause 15.1.10; or
11.4.                                the dimensional requirements of the standard referenced in clause 15.1.10; and
11.4.1.                          clauses 12.2 - 12.4 except for clause 12.4.2.2.
11.5.                                'Hook Couplings' must comply with the 'Coupling' manufacturer's installation instructions when fitted to a towing or towed vehicle.
11.6.                                For information purposes, a copy of the relevant dimensions referenced at clauses 11.2 and 11.4 are shown in APPENDIX 1.
12.                                      OTHER 'COUPLINGS'
12.1.                                'Couplings' other than those specified in clauses 6 to 11 must comply with clauses 12.2 to 12.4 and must comply with the 'Coupling' manufacturer's installation instructions when fitted to a towing or towed vehicle.
12.2.                                Locking Mechanism
12.2.1.                          'Couplings' must incorporate a positive locking mechanism together with a separate means of retaining this mechanism in the locked position. The locking must be readily verifiable by visual examination.
12.2.2.                          'Quick Release Couplings' must incorporate a positive locking mechanism together with a separate means of automatically retaining this mechanism in the locked position.  This locking must be readily verifiable by visual examination.
12.3.                                Strength
12.3.1.                          Up to 750kg 'ATM'
         'Couplings' specifically designed for use between LA, LB, LC, LD category and LEM sub-category towing vehicles and trailers up to 750kg 'ATM' when installed in the design configuration must withstand the relevant static or dynamic forces nominated in clause 12.3.1.1 or clause 12.3.1.2 when these forces are applied separately at the intended 'Coupling' centreline, without incurring any residual deformation that would interfere or degrade the function of the assembly or any breaks, cracks or separation of components. The static forces must be maintained for not less than 10 seconds.
12.3.1.1.                    Up to 750kg 'ATM' – Static Testing
12.3.1.1.1.              Longitudinal tension and compression of minimum (N) 1.5 x 9.81 x 'ATM' (kg) for the 'ATM' at which the 'Coupling' is rated; and
12.3.1.1.2.              Transverse thrust of minimum (N) 0.5 x 9.81 x 'ATM' (kg) for the 'ATM' at which the 'Coupling' is rated.
12.3.1.2.                    Up to 750kg 'ATM' – Dynamic Testing
12.3.1.2.1.              Horizontal alternating force of minimum +/- 2.52 kN acting in a line parallel to the ground and in the longitudinal median plane of the towing vehicle for at least 2 million cycles.  The frequency is not