Britax MARATHON 70 User Manual page 56

Securing Your Child
1 Loosen the harness.
a Lift harness adjuster lever
b Pull both harness straps forward
2 Open the chest clip.
a Press tabs
b Pull apart
3 Release the buckle and attach
the harness straps to the harness
holders.
4 Place the child in the child seat.
* Ensure the child is positioned
upright in the child seat and not
slouching. Their bottom must touch
the child seat, and their back must
rest flat against the back of the
child seat.
5 Position the harness straps
around the child.
54
1b
1a
2a
3
2b