Britax MARATHON 70 User Manual 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.
1
Remove the belly pad and pull
the buckle through the cover.
Turn the buckle webbing
2
and slide it between buckle
positions.
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