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Replacing Edge Sensors - bObi Pet

For this repair, you will need a Phillips head screwdriver and a set of replacement edge sensors.

First, flip bObi's power switch OFF.

Next, remove bObi's front wheel to access one of the screws holding her together. Turn bObi's front wheel towards her bumper and, using a screwdriver for leverage, grip the wheel firmly and pull it up.

Remove the screw located beneath bObi's wheel.

Detach bObi's dustbin and remove the 2 screws on either side of it.

Remove the 2 triangular corner pieces held down by these screws.

Pull the main brush compartment forward to expose the red fastener behind bObi's main brushes. Remove the 2 smaller screws holding the red fastener in place.

Lift bObi's brush compartment up and out. To detach her brush compartment completely, unplug it from bObi by pulling at the circuit junction.

Remove the 4 screws located beneath bObi's main brushes. 

Remove the 2 screws securing the red contact point fastener onto bObi, and pull off the fastener.

Flip bObi back onto her wheels and lift her cover up. There are 2 circuit plugs which must be removed to separate bObi's cover completely: a yellow-wired circuit plug connected to the left side of bObi's mainboard, and a white-wired circuit plug connected to the center of bObi's mainboard.

To remove bObi’s 4 ground detection sensors, detach the circuit plug connected in front of bObi’s left wheel. If there is glue holding the plug onto bObi, simply break it off.

There is one screw holding each edge sensor in place. Remove the screw on each of the 4 edge sensors.

Lift the sensor pieces out. Do NOT remove the clear covers from the 2 center sensors.

However, make sure to remove the covers from the 2 outer sensors and attach them to your replacement ones.

Place your new sensors in the open spaces and reinstall each sensor's screw.

Plug the replacement sensors into the empty spot on bObi's main board. You may add glue or electrical tape to the circuit plug for an extra secure hold.

Now you’re ready to put bObi’s cover back together. Reconnect the white-wired circuit plug to the center of bObi's mainboard and the yellow-wired circuit plug to the left side of her board. Press each circuit plug firmly until they lock in their holders.

Carefully replace bObi’s cover. Make sure its edges align precisely before laying down the contact point fastener and reinstallling its 2 screws.

Next, reinstall the 4 screws located beneath bObi's brush compartment.

Reattach bObi's brush compartment.

Line up the red brush fastener on bObi and replace its 2 smaller screws.

Lay the 2 corner pieces down.

Reinstall the 2 screws on either side of bObi's dustbin.

Reinstall the screw located beneath bObi's front wheel.

Lastly, replace bObi's front wheel by turning it towards her bumper and pressing down.

Your repair is now complete! 

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