Child Seat Functions; Adjusting The Harness Height; Adjusting The Harness Buckle Position; Using The Harness Buckle - Britax MARATHON Guide D'utilisation

BRITAX Child Safety, Inc.

Child Seat Functions

Adjusting the Harness Height

• In rear-facing mode, the harness straps should be
in the closest position at or below your child's
shoulders. See page 7.
• In forward-facing mode, the harness straps should
be in the closest position at or above your child's
shoulders. See page 7.
1. Loosen the harness.
a. Lift harness adjuster
lever.
b. Pull both harness
straps forward.
2. Squeeze the harness
height adjuster, slide the
harness into the desired
position and release.
3. Ensure the harness has
locked into position.

Adjusting the Harness Buckle Position

• For rear-facing installation:
– ALWAYS position the buckle in
the inner slot for when using a
vehicle seat belt installation.
– The vehicle belt must pass in
front of the buckle strap.
– Position the buckle in the slot
closest to but not under the child when using the LUAS
installation.
• For forward-facing installation, use the outer buckle
slot when installing the child seat with a child weighing
13.6 kg (30 lbs) and above or if the buckle is under the
child in the inner position.
• NEVER leave the buckle in the adjustment slot.
22
1b
1a
ADJUSTMENT
SLOT
1. Unbuckle the harness
and remove the buckle.
See page 38.
2. Route the belly pad
and buckle through the
desired slot in the cover.
NOTE: Slide the end of
the belly pad over the
comfort foam.
3. Slide the buckle retainer
into the front buckle
slot and slide into the
corresponding buckle
position. Ensure the red
release button faces out.
Replace cover.

Using the Harness Buckle

To Fasten:
1. Insert one tongue at a
time into the buckle.
Proper connection is
confirmed with a click
after inserting each
buckle tongue.
To Release:
1. Press the release button
and pull the tongues from
the buckle.
NOTE: Periodically clean
the buckle to ensure
proper operation. See
page 43.

Using the Chest Clip

1. Open the chest clip.
a. Press tabs.
b. Pull apart.
2. Push together
to fasten.
NOTE: Always
position the
chest clip at
armpit level.
MARATHON Canadian User Guide
a
b
23