Installation of Integral Universal ISOFIX Enhanced Child Restraint Systems (i. Size), or Integral Specific vehicle ISOFIX Enhanced Child Restraint Systems on the test bench. The unoccupied ISOFIX Enhanced Child Restraint System shall be attached to the ISOFIX anchorage system. Securing the ISOFIX attachments to the ISOFIX lower anchorages shall be permitted to draw the unoccupied Enhanced Child Restraint System towards those anchorages. An additional force of 135 ± 15N shall be applied in a plane parallel to the surface of the test seat cushion. The force shall be applied along the centre line of the Enhanced Child Restraint System and at a height no more than 100 mm above the cushion. If present, the top tether shall be adjusted to achieve a tension load of 50 ± 5N. Alternatively, and if present, the support-leg shall be adjusted according to the Enhanced Child Restraint System manufacturer's instructions. The Enhanced Child Restraint System centre line shall be aligned with the centre line of the test bench. The dummy shall be placed in the Enhanced Child Restraint System separate from the seat-back of the chair by a flexible spacer. The spacer shall be 2.5 cm thick and 6 cm wide. It shall have length equal to the shoulder height less the thigh height, both in the sitting position and relevant to the dummy size being tested. The resulting height of the spacer is listed in the table below for the different dummy sizes. The board should follow as closely as possible the curvature of the chair and its lower end should be at the height of the dummy's hip joint. Table 7 Q0 Q1 Q1.5 Q3 Q6 Q10 (design targets) Dimensions in mm Height of spacer device for positioning of dummy 173 ± 2 229 ± 2 237 ± 2 250 ± 2 270 ± 2 359 ± 2 Adjust the ECRS belt in accordance with the manufacturer's instructions, but to a tension of 250 ± 25 N above the adjuster force, with a deflection angle of the strap at the adjuster of 45 ± 5°, or alternatively, the angle prescribed by the manufacturer. The spacer shall then be removed and the dummy pushed towards to the seat back. Distribute the slack evenly throughout the harness. The longitudinal plane passing through the centre line of the dummy shall be set midway between the two lower ECRS belt anchorages, however note shall also be taken of paragraph 7.1.3.2.1.3. above.
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