Britax Safe-n-Sound BS4900A-020130 Series Instructions For Installation & Use page 16

HOW TO INSTALL CHILD HARNESS
INSTALLATION METHOD
If the seating position has a lap only seat belt then no other vehicle seatbelt preparation is
required.
If the seating position has a lap-sash seatbelt then it MUST be converted into a lap belt by fitting a
Gated 3 bar slide, see page 32.
The top tether must be correctly fitted for all installations.
CAUTION:
ALWAYS FOLLOW THE CHILD HARNESS INSTRUCTIONS.
IMPORTANT :
The SecureGuard™ Device MUST ALWAYS be used when the child is using the
booster seat with the child harness as it ensures the lap belt is correctly positioned on the
child's hips.
A loose or poorly positioned lap belt can move up into the abdomen and cause serious
injuries in a crash.
NOTE: Some vehicle seatbelts are too short and you may experience some difficulty
fitting the converted lap-sash around your child. If so, adjust the gated slide nearer to your
child, ideally under the armrest and lap belt recess area (ensure the slide does not touch
your child). This should provide more belt length to fit your child, but if the belt still will not
fit, try another location in the vehicle. If the vehicle belts are still too short, then contact the
vehicle manufacturer for advice on longer seatbelts.
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Instructions for Installation & Use - Series No. BS4900A-020130
HOW TO INSTALL CHILD HARNESS
CONVERTING A LAP-SASH
SEATBELT FOR USE WITH THE
CHILD HARNESS.
With the booster the seat installed in the vehicle,
sit the child in the seat. Fit the vehicle lap sash belt
into the vehicle buckle and position the lap strap
over the child's hips and thighs. Ensure all slack is
removed from the lap strap.
Locate the gated slide for the next step.
Take the sash strap away from the child's chest
and place together with the lap strap across the
hips and thighs. Engage the straps into the gated
slide with the hollow side towards the booster seat.
Check and ensure that no lap belt slack is caused
while fitting the gated slide.
The gated slide should be close to the child but not
touching and should guide the sash belt back to
the retractor away from the child.
For further details on fitting the gated slide, see
page 32 to 33.
Check and adjust the crotch buckle height to suit
the child. With the SecureGuard™ Device hooked
over the lap belt, the lap belt should sit within the
red clip and should not be able to lift up into the
abdomen region of the child.
Both the converted lap/sash seatbelt and
SecureGuard™ Device are now setup. Proceed
to page 34 to fit the child harness to the child in
readiness of vehicle travel.
:
DO NOT LEAVE CHILDREN UNATTENDED IN THE CAR.
Do not use a child harness with just a vehicle seatbelt. Only use with a compatible booster seat
and lap belt, or converted lap-sash seatbelt.
Instructions for Installation & Use - Series No. BS4900A-020130
Gated Slide
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