Irobot Roomba 650 Side Brush Motor Replacement Repair Guide

Difficulty

Moderate

Steps

5

Time Required

                          10 minutes            

Sections

2

• Side Brush and Bottom Panel
• 2 steps
• Side Brush Motor
• 3 steps

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Introduction

What you need

Step 1

              Removing the Side Brush               

• With the Roomba upside down and turned off, use the Phillip’s 02 screwdriver to remove the one 3.5 mm screw from the center of the side-brush.
• Set the screw aside and pull the brush out.

With the Roomba upside down and turned off, use the Phillip’s 02 screwdriver to remove the one 3.5 mm screw from the center of the side-brush.

Set the screw aside and pull the brush out.

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Step 2

              Bottom Panel Removal               

• Unscrew the four screws that hold the bottom panel using the Phillips 02 screwdriver.
• The screws will not come out of the bottom panel. They were designed to become loose but not be removed. This prevents you from losing them, and prevents the Roomba from sucking them up if they came out during cleaning.
• Once you are sure that all the screws have been loosened as much as possible, then lift the bottom panel up off the Roomba.

Unscrew the four screws that hold the bottom panel using the Phillips 02 screwdriver.

The screws will not come out of the bottom panel. They were designed to become loose but not be removed. This prevents you from losing them, and prevents the Roomba from sucking them up if they came out during cleaning.

Once you are sure that all the screws have been loosened as much as possible, then lift the bottom panel up off the Roomba.

Step 3

              Side Brush Motor               

• Locate and loosen the two small screws fastened to the motor housing with the Phillip’s 00 Screwdriver. Like the bottom panel screws, these will not come out completely.

Locate and loosen the two small screws fastened to the motor housing with the Phillip’s 00 Screwdriver. Like the bottom panel screws, these will not come out completely.

Step 4

              Gear Box Cover               

• Remove the screw on top of the housing. The small plastic piece should come right off.
• Carefully pry open the gear box by inserting a flat head screwdriver in the slot on the end of the box. This might be difficult and require some wiggling of the screwdriver.
• The cover should come right off.

Remove the screw on top of the housing. The small plastic piece should come right off.

Carefully pry open the gear box by inserting a flat head screwdriver in the slot on the end of the box. This might be difficult and require some wiggling of the screwdriver.

The cover should come right off.

Step 5

              Motor Removal               

• Locate and loosen the two screws inside the gearbox with the Phillips 00 Screwdriver. The motor should come right out the bottom.

Locate and loosen the two screws inside the gearbox with the Phillips 00 Screwdriver. The motor should come right out the bottom.

To reassemble your device, follow these instructions in reverse order.

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                                                                                      5 other people completed this guide.                                             

Author

                                      with 4 other contributors 

                    Charles Ward                     

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                       Cal Poly, Team 19-7, Maness Winter 2015                        

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Stephen Tashiro - Jun 4, 2017

Reply

In step 4, the screw on top of the housing has an unusual head. It’s similar to a Phillips screw, but it only has 3 grooves. A small flat blade screw driver can unscrew it.

When you pry off the cover of the gear box, some gears may pop out, so do this on a work surface where they won’t get lost.

You may find that the brush has stopped rotating because the inside of the gear box is full of lint.

Shawn Hunter - Aug 23, 2017

Reply

Side brush motor works hooked to7,4v battery will not work in its socket pocket. tested voltage at springs only getting 5.3 v is this low voltage issue from Roomba or voltage ok , Springs are fine in sockets.

Joe Escuage - Jul 31, 2018

Reply

Any idea where to get the main drive GEAR my motor is fine but the main gear is missing teeth

duder - Apr 19, 2020

Matt Weatherford - Oct 7, 2020

Reply

Those gears look like a pretty standard set, but need some kind of spec or part # to replace