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Marathon
User Guide

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Table of Contents
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Summary of Contents for Britax MARATHON

  • Page 1 Marathon ™ User Guide...
  • Page 2: Table Of Contents

    Harness Buckle .....................32 How to Adjust Harness Slot Height..............33 Securing Your Child ....................34 Care and Maintenance .....................36 Warranty ........................40 ©2008 Britax Child Safety, Inc. All rights reserved. Printed in U.S.A P314500_R1:02.08 This product and its components are subject to change without notice.
  • Page 3: Warnings

    • Register your child seat with the manufacturer, Britax Child • Child seat must be in the full upright position when installed in Safety, Inc. by visiting www.BritaxUSA.com/registration, OR fill forward-facing mode with children who weigh more than 33 out the registration card that was shipped with this child seat.
  • Page 4: Important Notes

    • Store the child seat in a safe place when it is not being used. Britax Child Safety, Inc., 13501 South Ridge Drive Charlotte, Avoid placing heavy objects on top of the child seat. NC 28273, or call 1-888-4BRITAX, or register online at www.
  • Page 5: Important Harness Adjustments

    Safety Information Safety Information Important Harness Adjustments Forward-Facing According to the American Academy of Pediatrics: Weight 20 pounds (and 1 year) – 65 pounds (9.1 – 29.5 kg.) All infants should ride rear-facing until they have reached at least 1 year Only use forward-facing with children: of age and weigh at least 20 pounds.
  • Page 6: Features

    Features Features Manufactured Date Label (under Shell cover) Forward-Facing Lock-offs Cover Harness Holders Versa-Tether (Top Anchorage Strap)- ® Rear-Facing Lock-offs LATCH Straps HUGS (Harness Ultra Guard ™ in pouch LATCH Bar LATCH Adjuster Release Buttons System) Chest Pads Versa-Tether Storage Pouch Base LATCH Adjusters Harness...
  • Page 7: Vehicle Compatibility

    Vehicle Compatibility Vehicle Compatibility Vehicle Safety Belts Vehicle Buckle Positions NOTE: The information in this section only applies to installation with WARNING! The position of the vehicle vehicle safety belts. belt buckle can adversely affect the IMPORTANT: Vehicle seats and safety belts differ from vehicle stability of the child seat.
  • Page 8: Installation: Rear-Facing

    Installation: Rear-Facing Installation: Rear-Facing LATCH Installation Align each LATCH strap on the LATCH bar with the “LATCH Strap Here Rear-Facing” label on • Figure A illustrates a typical rear-facing LATCH installation. each side of the child seat. (Fig. E and F). •...
  • Page 9: Lap-Shoulder Belt Installation

    Installation: Rear-Facing Installation: Rear-Facing Lap-Shoulder Belt Installation Verify that all connections are secure and that the child seat is stable. • Figure A illustrates a typical rear-facing, lap-shoulder belt installation. • When properly installed in the rear-facing position, the back •...
  • Page 10: Lap-Belt Installation

    Installation: Rear-Facing Installation: Rear-Facing Lap-Belt Installation Verify that all connections are secure and that the child seat is stable. • Figure A illustrates a typical rear-facing, lap-belt installation. • When properly installed in the rear-facing position, the back • When not in use, always store the LATCH connectors in the angle of the child seat should be 30º...
  • Page 11: Installation: Forward-Facing Latch Installation

    Installation: Forward-Facing Installation: Forward-Facing LATCH Installation • A positive click is NOT heard when the LATCH connector and the LATCH anchor are connected. • Figure A illustrates a typical forward-facing LATCH installation. NOTE: If a positive click is not heard, but the LATCH •...
  • Page 12: Lap-Shoulder Belt Installation

    33 pounds (15.1 kg.). your vehicle owner’s manual to determine the type of retractor your vehicle has, and how to IMPORTANT: Britax recommends that the Versa- lock the retractor. Tether be used at all times. Using the tether will ®...
  • Page 13: Lap-Belt Installation

    • Press the red release button on the vehicle belt buckle and pull the IMPORTANT: Britax recommends that the Versa- vehicle buckle from the child seat path. Tether be used at all times. Using the tether will ®...
  • Page 14: Installation: Aircraft Aircraft Installation

    IMPORTANT: avoid blocking the aisle. • Britax recommends that the tether be used at all times. Using • If the aircraft lap belt is too short, ask the the tether will improve the stability of the child seat and reduce flight attendant for a belt extender.
  • Page 15: Using The Versa-Tether

    Installation: Versa-Tether Installation: Versa-Tether ® ® Using the Versa-Tether Tether Connector Strap ® Consult your vehicle owner’s manual for WARNING! Only use the tether connector strap for a approved tether anchorage locations. rear-facing tether installation. Locate the tether on the rear of the child seat and remove the tether components from the pouch.
  • Page 16: Energy-Absorbing Tether

    Installation: Versa-Tether Child Seat Functions ® Energy-Absorbing Tether Switching the LATCH Connectors The LATCH connectors will properly connect Release WARNING! The energy-absorbing with the LATCH anchors in the vehicle only button tether has been designed to help when the connectors are correctly aligned and indicate when child seat has been in a the harness is not twisted.
  • Page 17: Storing The Latch Connectors

    Releasing the Chest Clip slot. Squeeze the middle tabs together (Fig. E). NOTE: Child seats are shipped from Britax with Pull the two pieces apart. the LATCH connectors in the storage slots. Adjusting the Chest Clip Slide the chest clip up or down (Fig.
  • Page 18: Harness Buckle

    Child Seat Functions Child Seat Functions Harness Buckle How to Adjust Harness Slot Height Fastening the Harness Buckle IMPORTANT: See Important Harness Adjustments Hold the harness buckle with one hand. on pages 6–7 for instructions on proper harness fit based on your child’s height and weight. Use your other hand to insert one buckle Loosen the harness by lifting the harness tongue at a time into the harness buckle...
  • Page 19: Securing Your Child

    Securing Your Child Securing Your Child Position the chest clip at the middle of the Securing Your Child Once the child seat is installed in the vehicle child’s chest, level with the child’s armpits and adjustments have been made, follow these (Fig.
  • Page 20: Care And Maintenance

    Care and Maintenance Care and Maintenance Cover Removal Cleaning the Cover • HAND WASH using cold water and mild soap. WARNING! Do not take apart the harness. Never remove • LINE or LIE-FLAT DRY to prevent the cover from the buckle tongues from the harness. They cannot be shrinking.
  • Page 21 Care and Maintenance Harness Buckle Removal Cleaning the Harness Buckle Fully recline the child seat. If a child eats and drinks while in the child seat, Locate the metal buckle strap retainer on the harness buckle may need to be periodically the bottom of the child seat.
  • Page 22: Warranty

    The use of non-Britax Child Safety, Inc. covers, inserts, toys, accessories, or tightening devices is not approved by Britax. Their use could cause this child seat to fail Federal Safety Standards or not perform as intended in a crash. Their use automatically voids the Britax warranty.
  • Page 23 Notes...
  • Page 24  Make sure the chest clip is properly fastened and positioned in the middle of the child’s chest at armpit level. Britax Child Safety, Inc. Tel 1.888.427.4829 13501 South Ridge Drive Charlotte, NC 28273 Britax USA.com A Britax Childcare Group Limited company...

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