Document ID: chunk:federal_register_of_legislation:F2023C00919:body:0:p101
Version: federal_register_of_legislation:F2023C00919
Segment Type: other
Provision Reference: 
Character Range: 296464–299534

within the safety margin indicated in paragraph 5.5.1. or exceed(s) the limit values, a further three measurements shall be made in the loading conditions corresponding to this (these) result(s) as specified in paragraph 5.5.3.
5.5.3.                              For each of the above loading conditions:
5.5.3.1.                        If none of the three measured results differs by more than 2 mrad (0.2 per cent inclination) from the arithmetic mean of the results, that mean shall constitute the final result.
5.5.3.2.                        If any measurement differs from the arithmetic mean of the results by more than 2 mrad (0.2 per cent inclination), a further series of 10 measurements shall be made, the arithmetic mean of which shall constitute the final result.
5.5.3.3.                        If a vehicle is fitted with an automatic headlamp levelling system which has an inherent hysteresis loop, average results at the top and bottom of the hysteresis loop shall be taken as significant values.
All these measurements shall be made in accordance with paragraphs 5.5.3.1. and 5.5.3.2.
5.5.4.                              Requirements have been met, if, under all loading conditions, the variation between the measured initial inclination determined in accordance with paragraph 5.2. and the inclination measured under each loading condition is less than the values calculated in paragraph 5.5.1. (without safety margin).
5.5.5.                              If only one of the calculated upper or lower limits of variation is exceeded, the manufacturer shall be permitted to choose a different value for the stated initial inclination, within the limits specified for approval.
Annex 7

Indication of the downward inclination of the dipped-beam headlamps cut-off referred to in paragraph 6.2.6.1.1. and downward inclination of the front fog lamp cut-off referred to in paragraph 6.3.6.1.2. of this Regulation

Example 1
The size of the symbol and characters is left to the discretion of the manufacturer.

Example 2
The size of the symbol and characters is left to the discretion of the manufacturer.

Annex 8

The controls for the headlamp levelling devices referred to in paragraph 6.2.6.2.2. of this Regulation

          1. Specifications
              1.                                     Downward inclination of the dipped beam shall in all cases be produced in one of the following ways:
(a) By moving a control downwards or to the left;
(b) By rotating a control in a counter clockwise direction;
(c) By depressing a button (push pull control).
If several buttons are used to adjust the beam, the button which gives the greatest downward inclination shall be installed to the left or below the button(s) for other dipped beam positions.
A rotary control, which is, installed edge on, or with only the edge visible, should follow the operating principles of control of types (a) or (c).
1.1.1.                              This control shall carry symbols indicating clearly the movements corresponding to the downward and upward inclination