Document ID: chunk:federal_register_of_legislation:F2012C00357:reg:1:p8
Version: federal_register_of_legislation:F2012C00357
Segment Type: reg
Provision Reference: reg 1 (pt 8/19)
Character Range: 169970–172655

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.

        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 3‑D H machine from side to side through a 10° arc (5° to each side of the vertical centreplane) for three complete cycles to release any accumulated friction between the 3‑D H machine and the seat.

        During the rocking action, the T‑bar of the 3‑D H machine may tend to diverge from the specified horizontal and vertical alignment.  The T‑bar must therefore be restrained by applying an appropriate lateral load during the rocking motions.  Care shall be exercised in holding the T‑bar and rocking the 3‑D H machine to ensure that no inadvertent exterior loads are applied in a vertical or fore and aft direction.

        The feet of the 3‑D H machine are not to be restrained or held during this step.  If the feet change position, they should be allowed to remain in that