iRobot Roomba 551 Main Brush Motor Replacement

Place your Roomba upside-down on a hard surface.

While holding the side brush in place, use a Phillips #1 screwdriver to remove the 4.5mm screw from the center of the brush.

Gently pull upwards on the brush to remove it.

Rotate the Roomba upside-down so the bottom is facing towards you.

Using a Phillips #2 screwdriver, remove the captive screws that hold the bottom plate in place.

Carefully lift the bottom plate.

Push on the dirt bin release button, and pull gently.

Use a Phillips #1 screwdriver to loosen the 4 captive screws around the case .

Grab the brush case and pull upwards to remove.

Use a Phillips #1 screwdriver to remove the 9.5mm screws from the side of the brush case, and pull to detach.

Repeat for the opposite side of the brush case.

Use a Phillips #1 screwdriver to remove the three 5.0mm screws from the back of the brush case.

Pull off the back of the brush case.

Use a Phillips #1 screwdriver to remove the two 1.5mm screws securing the chip in place.

Remove the chip from its housing in the blue brush case.

Use a Phillips #1 screwdriver to remove the two 5.5mm screws securing the motor in place.

Use a Phillips #1 screwdriver to remove the two 4.5mm screws on the top and bottom of the metal plate.

Pull out the motor and metal covering.

Use a Phillips #1 screwdriver to remove the two 3.5mm screws on the corners of the circuit board.

Gently pull out the circuit board.