Remove the 4 truss screws to open the maintenance lid.
As shown, take out the 4 hexagon bolts and disconnect the 3 connectors to remove the slide motor and bracket.
Check the pinion gear and if the gear teeth are worn or missing, replace the pinion gear.
After replacing the gear, install the motor to the frame with the keyway matching the direction shown. At this time, secure the slide motor after pressing the bracket to the rack side in the manner so that the gear and rack backlash becomes zero.
After assembly, apply grease to the gear and rack.
Turn power on and check to see that the gear and rack mesh is correct. If the mesh is incorrect, the motor makes a loud noise when it rotates.
After making any adjustments, replace the maintenance lid.