To replace Junior’s dustbin contact points, you’ll need a Phillips head screwdriver, the flat-head screwdriver included in Junior’s box, and a new set of contact points.
Before starting any repair on Junior, turn his side power switch OFF and remove his dustbin.
Then, flip Junior over onto a flat surface and remove his main brush using the flat head screwdriver. Keep all removed screws and parts safely aside, as they may be needed for later reassembly.
Use a Phillips head screwdriver to remove the 7 screws on Junior’s underside that hold him together.
Junior’s cover is no longer secured, so hold the top and bottom together as you carefully flip him back onto his wheels. Grip Junior’s cover from the back and lift up to expose the mainboard.
Slide the power inlet down and tuck it somewhere safe to avoid compressing its wires.
To detach Junior’s cover completely, disconnect 4 circuit plugs.
Junior’s cover is now completely detached and can be set aside for the rest of the repair.
To access the dustbin’s contact points, you will need to remove the wheel cover. You may wish to lift and move the main brush motor and power switch out of the way to reach the screws securing the wheel cover onto Junior.
Remove the wheel cover's 6 screws:
- 2 screws are next to the mainboard
- 2 are on either side of the left wheel, one above and one below
- 2 more screws are on the right wheel, one above and one below
Once all 6 screws are removed, lift the wheel cover up and unplug it from the mainboard. Place it aside for now.
For ease of access, you may wish to place the left and right wheels aside, just be sure to keep their springs safely on-hand for later reassembly.
It may also help to prop Junior’s back up for the rest of the repair.
Remove 5 more screws to access the contact points.
Lift the main brush compartment’s plastic barrier.
Slide the 2 contact points out of their spaces.
Follow their wiring to the correct circuit plug on the mainboard.
Remove the old circuit plug and connect your new one in the open space. Feed the wiring back underneath the mainboard, toward Bob’s back.
Place Junior’s contact points back in their spaces so that the black wire is on the left and the orange is on the right.
Hold down the contact points as you replace their holder. Align the holder with all of the screw posts without compressing the wiring underneath.
Push each contact point in as you hold the main brush barrier on Junior, to ensure they have not shifted out of place. Then reinstall all of the barrier’s 5 screws.
With the back of Junior still tilted up, replace the left and right wheels if you have moved them. Replace the two springs on top of the wheels.
Plug the wheel cover back onto the mainboard.
Then, carefully align the cover with the screw posts on Junior. Clear the area of any wires than may become compressed underneath the wheel cover. Make sure the springs on top of the wheels do not move out of place as you push the cover down.
Install all 6 screws previously removed from the wheel cover:
- 2 just behind the mainboard
- 2 around the left wheel
- 2 around the right wheel
Reattach all 4 circuit plugs connecting Junior’s cover to the mainboard.
Remember to slide the power inlet back into its space on Junior’s cover.
Align the cover’s edges precisely. Then, flip Junior over onto a flat surface.
Ensure that no wires are compressed in the main brush compartment or visible at the edges of the bumper. If so, take a step back and lift the cover to tuck the wires into the appropriate spaces inside Junior.
Once the wires are all safely tucked away and Junior’s cover is aligned properly, reinstall all 7 screws previously removed from Junior’s underside.
Install the main brush and dustbin before your next use and Junior is completely reassembled!