Britax MARATHON 70 User Manual
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Britax MARATHON 70 User Manual

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Marathon
User Guide
IMPORTANT: Thoroughly read and follow all instructions before installing
this child seat. Store this user guide in the pocket behind the cover (See
features pages for reference).
70
TM

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Summary of Contents for Britax MARATHON 70

  • Page 1 Marathon User Guide IMPORTANT: Thoroughly read and follow all instructions before installing this child seat. Store this user guide in the pocket behind the cover (See features pages for reference).

  • Page 3: Table Of Contents

    Aircraft Installation ..................52 Securing Your Child ..................53 Care and Maintenance ................56 Tips and Troubleshooting ................65 Warranty .......................66 ©2010 Britax Child Safety, Inc. All rights reserved. Printed in USA P435000_R1:09.10 This product and its components are subject to change without notice.

  • Page 4: Warnings

    WARNING! Section Title DEATH or SERIOUS INJURY can occur: • Use only in a rear-facing position when using it with an infant weighing less than 20 lbs (9.1 kg) OR is less than 1 year of age. • Use only with children who weigh between 5 and 70 lbs (2.3 – 31.8 kg) and whose height is 49 in.
  • Page 5 40 lb (18.1 kg) child is the vehicle lower anchor limit. • 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 not perform as intended in a crash.

  • Page 6: Safety Information

    Safety Information Important Notes • Verify that the child seat is securely installed and the harness is properly adjusted around the child each time the child seat is used • Discontinue use of this child seat if it has been in a moderate or severe crash.

  • Page 7: Certification

    Send your name, address, e-mail address if available and the restraint’s model number and manufacturing date to Britax Child Safety, Inc. P .O. Box 91167 Allentown, PA 18109-9925, or call 1-888-427-4829, or register online at www.Britax.com/registration.

  • Page 8: Important Child Seat Usage Information

    • Children should be secured with a harness system until they exceed the weight or height limits specified. • Britax recommends that children ride rear-facing to the highest weight or height specified. WARNING! REAR-FACING use of this child seat is ONLY for children who meet ALL of the requirements below.
  • Page 9 Safety Information Forward-Facing: 20 – 70 lbs (9.1 – 31.8 kg) and at least 1 year of age WARNING! FORWARD-FACING use of this child seat is ONLY for children who meet ALL of the requirements below. If the child cannot be secured within these requirements because they are too large, another type of child seat (such as a booster) may be required.

  • Page 10: Vehicle Compatibility

    Vehicle Compatibility Compatible Vehicle Seat Belts NOTE: The information in this section only applies to installation with vehicle seat belts. Vehicle seats and seat belts differ from vehicle to vehicle. Refer to your vehicle owner’s manual for specific information about your vehicle seat belts and their use with child seats.
  • Page 11 Vehicle Compatibility ELR (Emergency Locking Retractor) with Locking Latch Plate Has a latch plate that locks the vehicle belt. * This type of latch plate locks the vehicle belt when the vehicle belt and latch plate lie flat. When using this Latch type of vehicle belt with a plate...
  • Page 12 Vehicle Compatibility ELR (Emergency Locking Retractor) with a Sliding Latch Plate Has a latch plate that freely slides along the vehicle seat belt webbing. Has a retractor that locks only in an emergency situation such as sudden stop or crash. IMPORTANT: This belt type requires the use of the lock-offs built into the seat for rear- and forward-facing...
  • Page 13 Vehicle Compatibility Tightens by feeding the belt webbing back into the retractor. Locking Latch Plate Has a latch plate that prevents the webbing from becoming loose. Latch plate Tightens by pulling on the Adjuster belt webbing.

  • Page 14: Incompatible Vehicle Seat Belts

    Vehicle Compatibility Incompatible Vehicle Seat Belts WARNING! The following types of vehicle seat belts are NOT compatible with this child seat. If any of the belt types listed below are in the chosen seating position, choose another vehicle seating position or check your vehicle owner’s manual for information on installing a car seat in your vehicle.

  • Page 15: Vehicle Seating Positions

    Vehicle Compatibility Vehicle Seating Positions WARNING! DO NOT place child seat rear-facing in the front seat of a vehicle with a passenger air bag unless deactivated. DEATH or SERIOUS INJURY can occur. See your vehicle owner’s manual for child seat installation instructions.

  • Page 16: Child Seat Features

    Child Seat Features Cover 10 Lower Connector Adjuster (LATCH component) Harness Height Adjuster 11 Lower Connector Release Head Pad Button (LATCH component) Comfort Pads 12 Lower Connector (LATCH Infant Body Pillow component) Harness Holder Lower Connector Bar User Guide Storage (in Lower Connector Strap pocket behind cover) (LATCH component)
  • Page 17 Child Seat Features 17 Belly Pad 26 Rear-Facing Lock-Offs (Blue – under cover on front of shell) 18 Harness Adjuster 27 Rear-Facing Belt Slot Lever (under cover) 28 Base 19 Harness Adjuster Strap ® 29 Versa-Tether (Top Anchorage 20 Recline Adjustment Handle Strap - LATCH component) 21 Shell 30 Harness Yoke...

  • Page 18: Child Seat Functions

    Child Seat Functions Harness Height Adjustment Loosen the harness. a Lift harness adjuster lever b Pull both harness straps forward Squeeze the harness height adjuster, slide the harness into the desired position and release. * Ensure the harness has locked into position.

  • Page 19: Adjusting Buckle Position

    Child Seat Functions Adjusting Buckle Position IMPORTANT: • ALWAYS position the buckle in the ADJUSTMENT inner slot for rear-facing use. SLOT • The vehicle belt must pass in front of the buckle strap for rear-facing use. • NEVER leave the buckle in the adjustment slot.

  • Page 20: Fastening The Buckle

    Child Seat Functions Fastening the Buckle Releasing the Buckle Press the release button and Insert one tongue at a time into pull the tongues from the the buckle. buckle. NOTE: Proper connection is NOTE: Periodically clean confirmed with a click after the buckle to ensure proper inserting each buckle tongue.

  • Page 21: Using The Lock-Offs

    Child Seat Functions Using the Lock-Offs IMPORTANT: Both parts of the lock-off must be opened to secure a vehicle belt. To Open: To Close: LOCKING LOCKING VEHICLE BELT CLAMP CLAMP 1 Open the locking tab. 1 Close the clamp over the 2 Open the clamp.

  • Page 22: Recline Positions

    Child Seat Functions Recline Positions This child seat has 3 positions. To adjust, pull the recline handle then rotate the child seat shell into the desired position. Release the recline handle, then verify the child seat has locked into position. NOTE: Set the recline position BEFORE installing.
  • Page 23 Child Seat Functions Forward-Facing IMPORTANT: In forward-facing installations, it is important that the base of the child seat rests completely flat on the vehicle seat. As illustrated below, it is permissible to allow up to 20% or 3 inches (7.6 cm) of the base to hang over the edge of the vehicle seat.

  • Page 24: Using Lower Anchors And Tethers For Children (Latch)

    Child Seat Functions Using Lower Anchors and Tethers for Children (LATCH) Lower Anchors and Tethers for Children or LATCH, is a system available on this child seat that offers an alternative to vehicle seat belt installation methods. See pages 14 and 15 for LATCH components on this child seat.

  • Page 25: Using The Lower Connectors

    Child Seat Functions Using the Lower Connectors Where to find the Lower Connectors The lower connectors are located in the back of the base of the child seat. Store the connectors in the slots when not in use. To remove the lower connector from the storage slot or lower anchor: Press and hold the red release button.

  • Page 26: Using The Versa-Tether

    Britax recommends that the tether be used at all times when installing the child seat.

  • Page 27: Rear-Facing Tether Connector Strap

    Child Seat Functions Rear-Facing Rear-Facing Forward-Facing Rear-Facing Tether Connector Strap Because every vehicle model is different, a location to anchor the tether for rear-facing installations may vary. Use the rear-facing tether connector strap to assist in creating an anchor point. Find a fixed location in the vehicle that is bolted to the floor.
  • Page 28 Child Seat Functions IMPORTANT: The Versa-Tether carry clip is only for ® use when you wish to carry the child seat between locations. Do not install the child seat with the Versa- Tether attached to the carry clip. Secure the excess Versa-Tether webbing in the elastic strap during use.
  • Page 29 Child Seat Functions The Versa-Tether can indicate when the child seat has been in a moderate or severe crash (see page 4) and replacement of the child seat is necessary. Figure 1 shows a tether acceptable for continued use (provided the child seat has not been involved in a crash).

  • Page 30: Rear-Facing Installation

    • Britax recommends that the Versa-Tether is used at all times. Using the tether will improve the stability of the child seat and reduce the risk of injury.
  • Page 31 Rear-Facing Installation Install with LATCH as shown above. IMPORTANT: The buckle should be in the inner slot for rear-facing installation.
  • Page 32 Rear-Facing Installation Firmly press the lower connectors onto the adjacent lower anchors. • A click confirms attachment. • Verify that the lower connector strap is not twisted. TIP: You may need to turn the front of the child seat toward you for easier access to the lower anchors.
  • Page 33 Rear-Facing Installation Check that the child seat is reclined to position 3 Check that there is LESS than 1 in. (2.5 cm) of movement (front to back or side to side) at the belt path Check lower connector attachments Checklist 9 Check that all connections are secure.

  • Page 34: Lap-Shoulder Belt Installation

    – 45˚). If necessary, the proper recline angle can be achieved by placing a rolled towel or pool noodle in the vehicle seat bight. • Britax recommends that the Versa-Tether is used at all times. Using the tether will improve the stability of the child seat and reduce the risk of injury.
  • Page 35 Rear-Facing Installation Install with lap-shoulder belt as shown above. IMPORTANT: • The harness buckle strap should lie toward the back of the child seat during installation. • The buckle should be in the inner slot for rear-facing installation.
  • Page 36 Rear-Facing Installation Loosen the harness. a Lift harness adjuster lever b Pull both harness straps forward Remove the body pillow, unbuckle the harness, and remove the belly pad. Pull the head pad up, then pull the cover forward while pulling the buckle through to access the rear-facing belt path.
  • Page 37 Rear-Facing Installation Rear-facing installations can be improved by the use of the Versa-Tether (see pages 24 – 27). Pull the buckle up through its appropriate slot in the cover. 10 Replace the cover and the belly pad. Check that the child seat is reclined to position 3 Check that there is...

  • Page 38: Lap Belt Installation

    • Britax recommends that the Versa-Tether is used at all times. Using the tether will improve the stability of the child seat and reduce the risk of injury.
  • Page 39 Rear-Facing Installation Install with lap belt as shown above. IMPORTANT: • The harness buckle strap should lie toward the back of the child seat during installation. • DO NOT use lock-offs for lap belt installations. • The buckle should be in the inner slot for rear-facing installation.
  • Page 40 Rear-Facing Installation Loosen the harness. a Lift harness adjuster lever b Pull both harness straps forward Remove the body pillow, unbuckle the harness, and remove the belly pad. Pull the head pad up, then pull the cover forward while pulling the buckle through to access the rear-facing belt path.
  • Page 41 Rear-Facing Installation Check that the child seat is reclined to position 3 Check that there is LESS than 1 in. (2.5 cm) of movement (front to back or side to side) at the belt path Check buckle connection Checklist 9 Check that the vehicle belt is securely fastened. 9 Check that the child seat cannot be moved front to back or side to side more than 1 in.

  • Page 42: Forward-Facing Installation

    • Remove the Versa-Tether from the pouch and place it up and over the child seat back. * Britax recommends that the Versa-Tether is used at all times. Using the tether will improve the stability of the child seat and reduce the risk of injury.
  • Page 43 Forward-Facing Installation Install with LATCH as shown above. WARNING! • Your child seat may not perform as intended if the base of the child seat is not flat on the vehicle seat. • This child seat must not be used forward-facing for children less than one year of age OR who weigh less than 20 lbs (9.1 kg).
  • Page 44 Forward-Facing Installation Firmly press the lower connectors onto the adjacent lower anchors. • A click confirms attachment. • Verify that the lower connector strap is not twisted. TIP: You may need to turn the back of the child seat toward you for easier access to the vehicle lower anchors.
  • Page 45 Forward-Facing Installation Check Versa-Tether ® (Top Tether) attachment Check that Versa-Tether ® (Top Tether) webbing is stored in the elastic strap Check that no more than 20% or 3 inches (7.6 cm) of the base hangs over the edge of the vehicle seat Check that there is LESS than 1 in.

  • Page 46: Lap-Shoulder Belt Installation

    • Remove the Versa-Tether from the pouch and place it up and over the child seat back. * Britax recommends that the Versa-Tether is used at all times. Using the tether will improve the stability of the child seat and reduce the risk of injury.
  • Page 47 Forward-Facing Installation Install with lap-shoulder belt as shown above. WARNING! • Your child seat may not perform as intended if the base of the child seat is not flat on the vehicle seat. • This child seat must not be used forward-facing for children less than one year of age OR who weigh less than 20 lbs (9.1 kg).
  • Page 48 Forward-Facing Installation Loosen the harness. a Lift harness adjuster lever b Pull both harness straps forward Remove the body pillow and unbuckle the harness. Pull the head pad up, then pull the cover forward to access the forward-facing belt path. Open the red lock-off closest to where the vehicle belt will be LOCKING...
  • Page 49 Forward-Facing Installation Store excess webbing in the elastic strap. 10 Replace the cover. Check Versa-Tether ® (Top Tether) attachment Check that no more than Check that Versa-Tether ® 20% or 3 inches (7.6 cm) (Top Tether) webbing is of the base hangs over the stored in the elastic strap edge of the vehicle seat Check buckle...

  • Page 50: Lap Belt Installation

    • Remove the Versa-Tether from the pouch and place it up and over the child seat back. * Britax recommends that the Versa-Tether is used at all times. Using the tether will improve the stability of the child seat and reduce the risk of injury.
  • Page 51 Forward-Facing Installation Install with lap belt as shown above. WARNING! • DO NOT use lock-offs for lap belt only installations. • Your child seat may not perform as intended if the base of the child seat is not flat on the vehicle seat. •...
  • Page 52 Forward-Facing Installation Loosen the harness. a Lift harness adjuster lever b Pull both harness straps forward Remove the body pillow and unbuckle the harness. Pull the head pad up, then pull the cover forward to access the forward-facing belt path. Route the vehicle seat belt through the forward-facing belt slots, then buckle.
  • Page 53 Forward-Facing Installation Check Versa-Tether ® (Top Tether) attachment Check that no more than Check that Versa-Tether ® 20% or 3 inches (7.6 cm) (Top Tether) webbing is of the base hangs over the stored in the elastic strap edge of the vehicle seat Check buckle Check that there is LESS than 1 in.

  • Page 54: Aircraft Installation

    Aircraft Installation This child seat is certified for aircraft use. Most airlines in the U.S. and Canada will allow the use of a child seat as long as it is labeled as an approved child seat for use in aircraft and fits properly on the aircraft seat. Contact the airline about their policy prior to traveling.

  • Page 55: Securing Your Child

    Securing Your Child WARNING! • Adjust the belts provided with this child seat so they fit snugly around your child. A snug strap should not allow any slack. It lies in a relatively straight line without sagging. It does not press on the child’s flesh or push the child’s body into an unnatural position.
  • Page 56 Securing Your Child Loosen the harness. a Lift harness adjuster lever b Pull both harness straps forward Open the chest clip. a Press tabs b Pull apart Release the buckle and attach the harness straps to the harness holders. Place the child in the child seat. * Ensure the child is positioned upright in the child seat and not slouching.
  • Page 57 Securing Your Child Fasten the harness buckle. * Proper connection is confirmed with a click after inserting each buckle tongue. Pull the excess slack up to the child’s shoulder area while moving the HUGS™ chest pads down toward the buckle. Pull the harness adjuster strap up and away from the child seat to tighten the harness.

  • Page 58: Care And Maintenance

    Care and Maintenance Cover Removal WARNING! • Never remove the buckle tongues from the harness. They cannot be reattached after removal. If reassembled incorrectly, the child seat may not perform as intended. • DO NOT remove the HUGS™ chest pads from the harness straps. Loosen the harness.
  • Page 59 Care and Maintenance Raise the harness to the highest position and detach the hook and loop fasteners on the head pad from around the harness. Detach the elastic straps from the tabs behind the harness adjustment handle. Remove the head pad. Detach the plastic hooks from the bottom edge of the child seat.
  • Page 60 Care and Maintenance Pull the buckle through the slot in the cover. Remove the cover from the child seat shell.
  • Page 61 Care and Maintenance Cleaning the Cover • HAND WASH the cover using cold water and mild soap. • LINE DRY to prevent the cover from shrinking. • DO NOT: * Bleach * Machine wash * Machine dry * Iron Cleaning the Harness •...
  • Page 62 Care and Maintenance Cover Replacement Fit the child seat cover around the child seat shell. Attach the plastic hooks on the cover to the back of the child seat shell. Attach the plastic hooks to the bottom edge of the child seat. Pull the buckle through the slot in the cover.
  • Page 63 Care and Maintenance Fit the head pad around the harness adjustment handle and attach the elastic straps to the tabs behind the harness adjustment handle. Attach the hook and loop fasteners on the head pad around the harness. Replace the belly pad. a Pull the elastic strap around the buckle b Push the buckle through the...
  • Page 64 Care and Maintenance Cleaning the Buckle If your child eats and drinks while in the child seat, you will need to check the buckle periodically and rinse out any accumulated debris. Remove the Buckle Unbuckle the harness. Remove the belly pad and pull the buckle through the cover.
  • Page 65 Care and Maintenance Guide the buckle retainer up through the slot in the child seat shell to remove. To Clean: • THOROUGHLY RINSE the buckle using warm water. • TEST THE BUCKLE by fastening and unfastening until a click is heard after inserting each buckle tongue.
  • Page 66 Care and Maintenance Re-thread the Buckle IMPORTANT: • ALWAYS position the buckle in the ADJUSTMENT inner slot for rear-facing use. SLOT • The vehicle belt must pass in front of the buckle strap for rear-facing use. • NEVER leave the buckle in the adjustment slot.

  • Page 67: Tips And Troubleshooting

    Tips and Troubleshooting Troubleshooting Problem: The harness cannot be adjusted to its full height. Possible Solution: Check the seating position where the child seat is installed. The vehicle head restraint may obstruct the path of the child seat harness height adjuster. Remove or raise the vehicle head restraint and try adjusting the harness height again.

  • Page 68: Warranty

    The warranty and remedies as set forth above are exclusive and in lieu of all others, oral or written, express or implied. In no event will Britax, or the retailer selling this product, be liable to you for any damages, including incidental or consequential damages, arising out of the use or inability to use this product.
  • Page 70 Britax Child Safety, Inc. Tel. : 1-888-427-4829 13501 South Ridge Drive Charlotte, NC 28273 www.Britax.com A Britax Childcare Group Limited company...

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