Britax First Class Si User Manual page 18

5
Firmly push your First Class Si into the vehicle
seat using your body weight. Again, make sure
that the seat-belt still lies in the area of the
base indicated by the red routing label and
then pull the top section here...
7
Thread the belt around the diagonal seat-belt
guide on the side of the seat.
IMPORTANT –
check the position of the seat-belt buckle (see "Checking the
position of the seat-belt buckle" on page 18).
If in any doubt contact our Customer Service Helpline on
(01264) 386034.
after installing the First Class Si you need to
- 17 -
6
... and then pull here to tighten the diagonal
section of the seat-belt. It is essential to make
sure that the belt is pulled through the red
seat-belt lock at the correct angle, or else the
belt will bunch and come out.
8
The First Class Si should now be secure. To
check pull forward firmly on the harness. There
should be little or no movement.
.