The first step is to remove the damaged plank.
1- Use a straight edge to draw a line down the center of the plank.
2- Draw 45 degrees angles from the corners to the center line to form a triangle at each end of the plank.
3- Use an extra plank as a gauge. Set your saw blade to the proper depth to avoid cutting through the subfloor.
4- Carefully cut along the center line of the plank and sweep or vacuum up debris.
5- Cut the diagonals, taking care not to cut into or damage the adjacent planks and clean up any debris.
6-Remove the two center sections using a small chisel to lift the first edge and carefully remove the triangles from each end.
7- Use a sharp, small chisel to remove the lock from the long and short edges of the surrounding planks and clean up any loose material.
Insert the replacement plank
8- Prepare the replacement plank by removing the lock on the long and short sides.
Using a sharp utility knife, cut off the corner where the two grooved edges meet.
9- Apply a scant bead of cyanoacrylate adhesive to the exposed groove sides of all the flooring surrounding the repair.
10- Then apply a scant bead of adhesive to the groove sides of the replacement plank.
Align the cut corner first, then drop the replacement plank into position.
Finishing the repair
11-It is a good idea to practice inserting the replacement plank prior to applying glue. Use a rubber Mallet on the long and short sides to ease the replacement plank into place. Hand roll or apply pressure to ensure good adhesion.
12-Remove any excess adhesive immediately using a small amount of acetone applied with a clean white lint-free cloth. Never pour directly onto the floor.
The floor can be walked on immediately after replacement.