Difficulty
Moderate
Steps
13
Time Required
10 - 30 minutes
Sections
4
- Side Brush
- 3 steps
- Bottom Plate
- 3 steps
- Bumper
- 3 steps
- Bumper Sensor
- 4 steps
Flags
1
Featured Student Guide
This guide has been the hard work of our awesome students and is found to be exceptionally cool by the iFixit staff.
BackiRobot Roomba 551
Full Screen
Options
History
Save to Favorites
Download PDF
Edit
Translate
Get Shareable Link
Embed This Guide
Notify Me of Changes
Stop Notifications
Introduction
What you need
Step 1
Side Brush
- Place your Roomba upside-down on a hard surface.
Place your Roomba upside-down on a hard surface.
1024
Step 2
- While holding the side brush in place, use a Phillips #1 screwdriver to remove the 4.5mm screw from the center of the brush.
While holding the side brush in place, use a Phillips #1 screwdriver to remove the 4.5mm screw from the center of the brush.
Step 3
- Gently pull upwards on the brush to remove it.
Gently pull upwards on the brush to remove it.
Step 4
Bottom Plate
- Rotate the Roomba upside-down so the bottom is facing towards you.
Rotate the Roomba upside-down so the bottom is facing towards you.
Step 5
- Using a Phillips #2 screwdriver, remove the captive screws that hold the bottom plate in place.
Using a Phillips #2 screwdriver, remove the captive screws that hold the bottom plate in place.
Step 6
- Carefully lift the bottom plate.
- The battery is only secured in place by the bottom plate, and may fall out once the bottom plate is removed.
Carefully lift the bottom plate.
The battery is only secured in place by the bottom plate, and may fall out once the bottom plate is removed.
Step 7
Bumper
- With a Phillips #1 screwdriver, remove the ten 12mm screws located along the bottom of the bumper.
With a Phillips #1 screwdriver, remove the ten 12mm screws located along the bottom of the bumper.
Step 8
- Lift the bottom cover and set it to the side.
Lift the bottom cover and set it to the side.
Step 9
- Flip the Roomba over, grasp the bumper, and gently lift to remove.
- The battery is not secured in place once the bottom plate has been removed, and may fall out when the Roomba is turned right-side up.
Flip the Roomba over, grasp the bumper, and gently lift to remove.
The battery is not secured in place once the bottom plate has been removed, and may fall out when the Roomba is turned right-side up.
Step 10
Bumper Sensor
- Flip the Roomba so that the bottom is facing you.
Flip the Roomba so that the bottom is facing you.
Step 11
- Remove the two 5mm screws located near the center of the bumper using a Phillips #1 screwdriver.
Remove the two 5mm screws located near the center of the bumper using a Phillips #1 screwdriver.
Step 12
- Pull gently on the bottom of the sensor to remove.
Pull gently on the bottom of the sensor to remove.
Step 13
- Flip the bumper over and lift the sensor from its compartment.
- You are now free to replace the bumper sensor.
Flip the bumper over and lift the sensor from its compartment.
You are now free to replace the bumper sensor.
To reassemble your device, follow these instructions in reverse order.
Cancel: I did not complete this guide.
4 other people completed this guide.
Author
with 3 other contributors
Cody Rhoads
Member since: 01/16/2014
348 Reputation
2 Guides authored
Badges:
8
+5 more badges
Team
Cal Poly, Team 13-14, Regan Winter 2014
Member of Cal Poly, Team 13-14, Regan Winter 2014
CPSU-REGAN-W14S13G14
4 Members
19 Guides authored
