Follow these steps
If personnel other than a Thermo Fisher Scientific service engineer installs the system, follow the steps below.
To be able to shift the system base slightly on the workbench for better access to system parts, unlock the system base using the system base locking tools. See Unlocking the System Base.
Move the system stack into an appropriate working position.
Unplug the signal and power cables from the system controller.
Press both spring clips simultaneously and firmly pull out the system controller.