Section 7 - Installation and Use

3. Place child in Booster Seat.

- Child MUST sit upright with back contacting seat back, NOT slouching or sliding down.

4. Adjust headrest so that the top of shoulder belt guides are at or just above child’s shoulders.

-Push yellow headrest handles in and move headrest up or down to desired position.

- Release headrest handles and make sure handles snap into locked position.

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The First Years B510 manual Installation and Use