Difficulty
Moderate
Steps
9
Time Required
10 - 20 minutes
Sections
3
- Side Brush
- 3 steps
- Bottom Plate
- 3 steps
- Bumper
- 3 steps
Flags
0
BackiRobot Roomba 551
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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.
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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.
To reassemble your device, follow these instructions in reverse order.
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Author
with 3 other contributors
Cody Rhoads
Member since: 01/16/2014
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2 Guides authored
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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
Nikki Locke - Apr 17, 2018
Reply
Mine had a wire leading from the body to the bumper. The bumper end was held on by two small Phillips screws, which I undid to disconnect it (the bit it screws on to falls off the top of the bumper).
When putting it back together, make sure to put it on again the right way round, with the wire towards the front of the roomba (i.e. furthest from the main body), otherwise you will find the wire gets in the way of the bumper working, and you’ll have to take it all apart again, like I did!