Document ID: chunk:federal_register_of_legislation:F2018C00341:body:0:p3
Version: federal_register_of_legislation:F2018C00341
Segment Type: other
Provision Reference: 
Character Range: 8820–11913

adjusted to or to which they may themselves automatically adjust.
4.1.5.                              The vehicle, if equipped with an 'Antilock System', must meet the requirements of APPENDIX 1; and
4.1.5.1.                        the vehicle, if category MD4, ME NB or NC, with not more than four axles, must be equipped with an 'Antilock System' that meets the following requirements;
4.1.5.2.                        A manual device may be provided to disconnect or change the control mode of the 'Antilock System', on vehicles of categories NB and NC; where a device is fitted to NB or NC category vehicles, the following conditions shall be met:
4.1.5.2.1.                  The vehicle with the 'Antilock System' disconnected or the control mode changed by the device referred to in clause 4.1.5.2 above shall satisfy all the relevant requirements in clause 7 of this standard;
4.1.5.2.2.                  An optical warning signal shall inform the driver that the 'Antilock System' has been disconnected or the control mode changed; the red or yellow 'Antilock System' failure warning signal specified in APPENDIX 1 may be used for this purpose. The warning signal may be constant or flashing;
4.1.5.2.3.                  The 'Antilock System' shall automatically be reconnected/returned to on-road mode when the ignition (start) device is again set to the "ON" (run) position; or for vehicles fitted with a switch to positively select all wheel drive, when all wheel drive is deselected; or for vehicles fitted with permanent all wheel drive; when any centre differential is unlocked; or for all wheel drive vehicles fitted with a two speed transfer case, engagement of the higher of the two ranges.
4.1.5.2.4.                  The vehicle user's handbook provided by the manufacturer should warn the driver of the consequences of manual disconnection or mode change of the 'Antilock System';
4.1.5.2.5.                  The device referred to in clause 4.1.5.2 above may, in conjunction with the vehicle, disconnect/change the control mode of the 'Antilock System' of a trailer. A separate device for the vehicle or the trailer alone is not permitted.
4.1.6.                              All components and devices in the 'Brake System' must meet or exceed at least one appropriate and recognized international, national or association standard, where such standards exist, or the relevant parts thereof.  'Recognized' can be taken to include SA, SAE, BS, JIS, DIN, performance and design related ISO standards and UNECE standards.
4.1.7.                              Traction control systems may utilize part of the 'Service Brake System' provided that, except for parts common to both the traction control system and the 'Service Brake System', the traction control system or any failure of it cannot interfere with normal braking.
4.1.8.                              Brake line couplings must not be interchangeable and must be polarized.  Couplings must comply with the requirements of AS 4945-2000 Commercial road vehicles - Interchangeable quick connect/release couplings for use