Graco 6110 Owner's Manual page 57

Reverse steps to reinstall seat pad. Check that harness system is not
twisted, and pull on harness system to be sure harness is securely
reinstalled.
INFANT RESTRAINT METAL AND PLASTIC PARTS may be
cleaned by wiping with a mild soap and water solution. DO NOT USE
BLEACH. Use of bleach may weaken plastic parts.
HARNESS STRAPS may be spot cleaned or replaced. DO NOT
IMMERSE THE HARNESS STRAPS IN WATER. Doing so may weaken
the harness straps.
BUCKLE may be cleaned with a damp cloth.
DO NOT LUBRICATE the buckle.
DO NOT USE INFANT RESTRAINT without seat pad.
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