Graco 4EVER DLX SNUGLOCK Instruction Manual page 100

6-C Install Backless Booster
1. Remove the Seat Back by First
Loosening the Harness Straps
Push down on the harness adjustment lever
while pulling out on the harness straps at
the chest clip.
Unbuckle the
chest clip and
the buckle strap.
2. Remove Harness Straps from
Splitter Plate
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