Document ID: chunk:federal_register_of_legislation:F2015L02109:body:0:p22
Version: federal_register_of_legislation:F2015L02109
Segment Type: other
Provision Reference: 
Character Range: 66078–69183

if this is not possible, the first available fore/aft adjustment position rearward of the position determined in accordance with paragraph 6.11.
6.13.                          Record the longitudinal (X-axis) position of the SCRP in the vehicle reference coordinate system and measure the seat cushion reference line angle for future reference.  Except as provided in paragraph 8.4.6. of this annex; this adjustment position shall be used as the final seat cushion adjustment position for the installation of the dummy. [12]

7.                                    Procedure for manikin H-point and actual torso angle determination
7.1.                              The test vehicle shall be preconditioned at a temperature of 20 °C ± 10 °C to ensure that the seat material reaches stabilised room temperature for the installation of the 3-D H machine.
7.2.                              Adjustable lumbar supports and other adjustable seat supports shall be set to the adjustment positions specified in paragraph 4.1.1. and 4.1.2. of this annex.
7.3.                              The manikin H-point coordinates and final actual torso angle shall be determined for the seat in which the dummy is to be installed, by sequential completion of the steps outlined in paragraphs 7.4. to 7.24. of this annex below; with the test vehicle at the vehicle measuring attitude established in accordance with paragraph 3. of this annex above.
7.4.                              Cover the area of the seating position to be contacted by the 3-D H machine with a muslin cotton sheet of sufficient size and place the seat and back assembly of the 3‑D H machine in the seat.
7.5.                              Set the seat cushion position to the adjustment position recorded in accordance with paragraph 6.13. of this annex.
7.6.                              Using only the control(s) which primarily adjusts the angle of the seat back, independently of the seat cushion pitch; adjust the seat back position according to one of the following methods:
7.6.1.                        Place adjustable seat backs in the manufacturer's nominal design driving or riding position for a 50th percentile adult male occupant, in the manner specified by the manufacturer.
7.6.2.                        Where a design seat back position is not specified by the manufacturer:
7.6.2.1.                   Set the seat back to the first detent position rearward of 25° from the vertical.
7.6.2.2.                   If there is no detent position rearward of 25° from the vertical, set the seat back angle to the most reclined adjustment position.
7.7.                              Adjust the seat and back assembly of the 3-D H machine so that the centre plane of the occupant (C/LO) coincides with the centre plane of the 3‑D H machine.
7.8.                              Set the lower leg segments to the 50th percentile length (417 mm) and the thigh bar segment to the 10th percentile length (408 mm).
7.9.                              Attach the foot and lower leg assemblies to the seat pan assembly, either individually or by using the