Compatible with all Roomba e & i Series iRobot Part Number: 4624874 The Side Brush Module is an important part of your iRobot Roomba cleaning robot. It helps clean hard-to-reach areas like walls or stove edges. Replacing the Edge Brush Module can help keep your Roomba running at peak performance. Please remember to clean the Edge Brush regularly. Failure to do so may result in inefficient operation of the machine or even damage to the module. Replacing the Side Brush Module is very simple. All you need is a screwdriver! Loosen the side brush screw with a screwdriver or coin and remove the side brush Unscrew the 5 screws that secure the bottom cover, use a Phillips screwdriver Unscrew the battery to remove it from the robot. Unscrew the 2 screws that secure the side brush module < p>Remove the side brush module p> ; Install the replacement side brush module and tighten the 2 screws that secure the replacement side brush module Install the battery and the bottom cover. Install the brush