Graco 8480 - Manual (Page 38)

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DO NOT use shoulder belt
loose or positioned under arm.
Lap portion of lap/shoulder
belt MUST be low and snug
on hips, just touching thighs.
DO NOT allow child to slide
down in booster seat. This
could position vehicle lap
belt across child’s abdomen
and vehicle shoulder belt
over neck or face. If child will
not keep vehicle restraint
properly positioned, DO NOT
use this booster seat. Use a
different child restraint system.
6.1 Removing the Built-in Harness
The harness of your car seat must be removed
when your child’s shoulders are above the upper
harness slots or when your child weighs more
than 40 lbs. (18 kg). When removing the harness,
be especially careful to keep all the parts on the
belts. By keeping these very important parts
together, they can be reinstalled on the seat for
use with another child. Carefully follow the
instructions below.