Note: This step is not necessaryto remove the brush guard. Only do this is the wheels are not spinning correctly To begin, turn the Neato Botvac 80 upside down and locate the brush. Remove the 4 screws highlighted in red, and remove the cover. This releases the 2 small wheels, where you can remove the hair that gets tangled in them.

You will need to remove the four 10mm bolts with a T10 Torx screwdriver.