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Replacing Main Brush Clutch - Bob PetHair Plus

To replace Bob's main brush clutch, you’ll need a Phillips head screwdriver, a flat head screwdriver, and a new clutch.

Before starting any repair on Bob, turn his side power switch OFF.

Then, remove his dustbin.

Flip Bob over onto a flat surface and remove his main brush using the flat head screwdriver. Save all screws and parts for later reassembly.

Use a Phillips head screwdriver to remove the 6 screws on Bob's underside that hold him together.

Hold Bob's top and bottom together as you flip him onto his wheels. Grip Bob's cover from the back and lift up to expose his mainboard.

Slide the power inlet down and tuck it somewhere safe to avoid compressing its wires.

To detach Bob's cover completely, disconnect 4 circuit plugs:

  • 2 at the bottom of the mainboard
    • 1 on the far left
    • 1 with a thick white wire

  • 2 at the top of the mainboard
    • Disconnect the 2 center plugs

Bob's cover is now completely detached and can be set aside for the rest of the repair.

The main brush clutch is just beside the power switch.

Use one hand to push the clutch up from underneath Bob, then remove its screw.

Lift Bob up, and two pieces will fall out: the clutch and the spring on top of it.

Place your new parts underneath Bob. Make sure the semi-circular gap faces the main brush motor, not the outside of Bob. Hold the spring on top of the clutch piece while putting them back in their space. 

Push the clutch piece up from underneath Bob so you see the screw post protruding through. Hold the clutch there as you replace the small cushion and replace the screw.

Reattach all 4 circuit plugs connecting Bob's cover to the mainboard:

  • 2 at the top of the mainboard

  • 2 at the bottom of the mainboard

Remember to slide the power inlet back into its space on Bob's cover.

Align the cover’s edges precisely. 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 Bob.

Then, flip Bob over onto a flat surface. Replace all 6 screws previously removed from Bob's underside.

Replace the main brush and dustbin before your next use and Bob is completely reassembled!

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