Remove the two screws securing the card/transformer support and remove it from the motor block.

Unscrew the two Phillips screws holding the Hall-effect card to the electric motor.

Use a small flathead screwdriver to remove the motor wires from the board terminal block.

Remove the Hall effect card from the electric motor

Unscrew the 4 BTR screws using a 5 mm BTR wrench.

Lift the motor to remove it. You can use a flathead screwdriver to pry up the motor.

Refit the new electric motor, paying attention to the position of the cable outlet (arrow green) in relation to the gearwheel (red circle).

Reposition the hall effect card.

Position the component lugs upwards.

Screw back the Hall-effect card, electric motor and card holder.

Screw the motor wires back onto the terminal block.