| 5.2.1.11.1. | Wear adjustment shall be automatic for the service brakes. However, the fitting of automatic brake adjustment devices is optional for off-road vehicles of categories N2 and N3 and for the rear brakes of vehicles of category N1. Brakes equipped with automatic brake adjustment devices shall, after heating followed by cooling, be capable of free running as defined in paragraph 1.5.4. of Annex 4 following the Type-I test also defined in that annex. | a0c0 |