Britax Marathon User Manual page 36

Care and Maintenance
Buckle Removal
1 Fully recline the child restraint .
2 Locate the metal buckle
strap retainer on bottom of the
restraint .
A
3 Pull retainer away from child
restraint to loosen .
4 Turn the retainer so that the short side will go through the slot
in the restraint shell (Fig. A) .
5 Push the retainer through slots in the shell and cover, to the
front of the restraint .
Rethreading the Buckle
1 Locate the buckle slot .
2 Turn the buckle retainer so that the short side will go through
the slot in the cover and restraint shell (Fig. A) .
3 Pull buckle away from restraint until tight, then verify that the
strap is not twisted and the release button is facing outward .
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