Graco NAUTILUS 80 ELITE Manual De Instrucciones página 51

You should hear a CLICK when the arms
lock into the gutters.
MAKE sure to keep the gutters clear of any
obstructions.
N. Tuck seat pad in between the gap of
the back support and seat area of the
booster seat to allow 2 elastic straps
to show at the rear of the seat.
Click!
51