iRobot Roomba 870 Side Brush Motor Replacement

Introduction

This guide gives instructions on removing the side brush motor in the Roomba 870. There are a lot of screws that need to be taken out to replace the motor, so make sure you set aside a spot for the screws so that they are not lost.

What you need

Step 1 Side Brush Motor

iRobot Roomba 870 Side Brush Motor Replacement, Side Brush Motor: step 1, image 1 of 3

iRobot Roomba 870 Side Brush Motor Replacement, Side Brush Motor: step 1, image 2 of 3

iRobot Roomba 870 Side Brush Motor Replacement, Side Brush Motor: step 1, image 3 of 3

Turn the Roomba over so that the back side is facing up.
Using the Phillips #00 screwdriver, remove the 4.0mm screw in the center of the yellow side brush and lift the part out.

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Step 2

Use the Phillips #00 screwdriver to remove the four 3.5mm screws that hold down the battery panel and rear panel.

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Step 3

First remove the battery panel, which is the small rectangular.
After removing the battery panel, remove the rear panel.

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Step 4

iRobot Roomba 870 Side Brush Motor Replacement: step 4, image 3 of 3

Remove the three small 3.5mm screws fastened to the motor housing.
After removing the screws, remove the motor housing from the rest of the Roomba.

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Step 5

iRobot Roomba 870 Side Brush Motor Replacement: step 5, image 3 of 3

Remove the 2.5mm screw in the center of the motor housing using a Tri-Wing Y1 screwdriver.
After removing the screw, remove the top shell casing of the motor housing. Underneath, you will see a white gear with two screws next to it.

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Step 6

iRobot Roomba 870 Side Brush Motor Replacement: step 6, image 3 of 3

Remove the two 2.5mm screws in the inner motor housing using a Phillips #00 screwdriver.
After removing the two screws, the motor will slide right out the back, and it can be replaced.

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