Document ID: chunk:federal_register_of_legislation:F2015L02109:body:0:p25
Version: federal_register_of_legislation:F2015L02109
Segment Type: other
Provision Reference: 
Character Range: 73957–76999

apply and release a horizontal rearward load, not to exceed 25 N, to the back angle bar at a height approximately at the centre of the torso weights until the hip angle quadrant indicates that a stable position has been reached after load release. Care is exercised to ensure that no exterior downward or lateral loads are applied to the 3-D H machine.  If another level adjustment of the 3‑D H machine is necessary, rotate the back pan forward, re-level, and repeat all procedures from paragraph 6.15. of this annex onwards.
7.19.                          Use the 3-D H machine back angle quadrant, with the head room probe in its fully rearward position, to measure the actual torso angle.
7.20.                          If necessary, use only the control(s) which primarily adjusts the angle of the seat back independently of the seat cushion pitch; to adjust the actual torso angle to the design torso angle ±1° specified by the manufacturer.
7.21.                          Where a design torso angle is not specified by the manufacturer:
7.21.1.                     use only the control(s) which primarily adjusts the angle of the seat back independently of the seat cushion pitch; to adjust the actual torso angle to 23° ± 1°.
7.22.                          Where a design torso angle is not specified by the manufacturer and no seat back angular adjustment position produces an actual torso angle within the 23° ± 1° range:
7.22.1.                     use only the control(s) which primarily adjusts the angle of the seat back independently of the seat cushion pitch; to adjust the actual torso angle as close to 23° as possible.
7.23.                          Record the final actual torso angle for future reference.
7.24.                          Measure and record the manikin H-point (X, Y, Z) coordinates in the vehicle reference coordinate system for future reference.
7.25.                          Except as provided in paragraph 8.4.6. of this annex; the coordinates recorded in accordance with paragraph 7.24. above define the manikin H‑point location of the seat, when the seat is adjusted to the final seat cushion and seat back detent test positions for the installation of the dummy.
7.26.                          If a rerun of the installation of the 3-D H machine is desired, the seat assembly should remain unloaded for a minimum period of 30 minutes prior to the rerun.  The 3-D H machine should not be left loaded on the seat assembly longer than the time required to perform the test.

8.                                   WorldSID 50th percentile adult male installation requirements
8.1.                              Adjustable lumbar supports, other adjustable seat supports and adjustable head restraints shall be set to the adjustment positions specified in paragraph 4. of this annex.
8.2.                              Passenger compartment adjustments shall be set to the adjustment positions specified in paragraph 5. of this annex.
8.3.                              The test dummy shall then be installed