Document ID: chunk:federal_register_of_legislation:F2019C00053:front:0:p39
Version: federal_register_of_legislation:F2019C00053
Segment Type: other
Provision Reference: 
Character Range: 111678–114527

through the "H" point sight buttons shall be maintained perpendicular to the longitudinal centreplane of the seat.

       4.7.1.2.      If the left leg cannot be kept parallel to the right leg and the left foot cannot be supported by the structure, move the left foot until it is supported. The alignment of the sight buttons shall be maintained.

       4.7.2.            Designated seating position: outboard rear

       For rear seats or auxiliary seats, the legs are located as specified by the manufacturer. If the feet then rest on parts of the floor, which are at different levels, the foot which first comes into contact with the front seat shall serve as a reference and the other foot shall be so arranged that the spirit level giving the transverse orientation of the seat of the device indicates the horizontal.

       4.7.3.            Other designated seating positions:

       The general procedure indicated in paragraph 4.7.1. above shall be followed except that the feet shall be placed as specified by the vehicle manufacturer.

  2/ Tilt angle, height difference with a seat mounting, surface texture, etc.

       4.8.                   Apply lower leg and thigh weights and level the 3-D H machine.

       4.9.                   Tilt the back pan forward against the forward stop and draw the 3-D H machine away from the seat-back using the T-bar. Reposition the 3-D H machine on the seat by one of the following methods:

       4.9.1.            If the 3-D H machine tends to slide rearward, use the following procedure. Allow the 3-D H machine to slide rearward until a forward horizontal restraining load on the T-bar is no longer required i.e. until the seat pan contacts the seat-back. If necessary, reposition the lower leg.

       4.9.2.            If the 3-D H machine does not tend to slide rearward, use the following procedure. Slide the 3-D H machine rearwards by applying a horizontal rearward load to the T-bar until the seat pan contacts the seat-back (see figure 2 of appendix 1 to this annex).

       4.10.              Apply a 100 ± 10 N load to the back and pan assembly of the 3-D H machine at the intersection of the hip angle quadrant and the T-bar housing. The direction of load application shall be maintained along a line passing by the above intersection to a point just above the thigh bar housing (see figure 2 of appendix 1 to this annex). Then carefully return the back pan to the seat-back. Care must be exercised throughout the remainder of the procedure to prevent the 3-D H machine from sliding forward.

       4.11.              Install the right and left buttock weights and then, alternately, the eight torso weights. Maintain the 3-D H machine level.

       4.12.              Tilt   the   back   pan   forward   to  release   the   tension   on   the   seat-back.   Rock the