Britax Safe-n-sound BS8100A-020133 Series Instructions For Installation & Use page 65

D. Replace headrest cover by lifting elastic over headrest
wings and feeding through AHR Easy Adjust Headrest lever.
Clip in the press studs on the on the cover underneath the
headrest wings.
E. Refit the shoulder pads or other accessories if required.
If the headrest has moved then reset the headrest so the
shoulder straps are near the shoulder.
F. Refit to the vehicle.
See pages 66 to 67 to remove or replace any accessories.
CARE&MAINTENANCE
Instructions for Installation & Use - Series No. BS8100A-020133
Clip press stud
Replace headrest cover over
headrest wings
65