How to replace the lift sensor of Automower 220AC or 230ACX

Here is a step by step guide of how to disassemble and replace the lift sensor on the Husqvarna Automower 220AC. The same steps apply for the 230ACX. A faulty lift sensor gives the error message "Lifted" even if the robotic mower is standing flat and stable on the ground.
Spare parts used: www.gplshop.co...