LG LM63SGS Owner's Manual page 12

Insert the water supply tube into the connector.
Insert the tube at least 5/8 in. (15 mm) into the
connector.
Hook the tab on the door-switch side of the cover
under the edge of the wire opening in the cabinet
top.
Position the cover into place.
Insert and tighten the cover screw.
CAUTION
Collet
Tube
Insert Line
Clip
1. Insert the tube until you can see only one of the lines
printed on the tube.
2. After inserting, pull the tube to ascertain that it is
secure.
3. Assemble the clip.
Incorrect
REFRIGERATOR INSTALLATION
Correct
12