Dismantling the housing
The housing is attached to the chassis with four screws. Turn the robotic lawnmower over. Place the robotic lawnmower on a soft, clean surface to avoid damaging the housing. Unscrew the four screws (Torx 25).
Removing the hub cap on the drive wheel
The hub cap is attached using three snap-on fasteners that can be accessed from the inside of the drive wheel.
Removing/installing the wheel
Loosen the three screws (Torx 25) that secure the drive wheel in the hub. Remove the drive wheel.
Caution:
The washer between the screws and wheel is required for reassembly of the wheel.
The new wheel is fitted in reverse order. (Do not forget the washer!)