LG LMXS27626S Service Manual page 16

Step 5) The rail system will align itself by pushing the rails
all the way into the freezer section.
Pull the rails back out to full extension.
Step 6) Reinstall the freezer door by inserting the rail tabs
into the guide rail.
Step 7) Reinstall the two screws into the guide rails
(one from each side).
* Assemble them like as pictures
- 1 -
Step 8) Reinstall the top drawer, and close the freezer
door.