Removing kitchen cupboards

[WalksWithTurkeys]

I want to remove my Optiplan kitchen cupboards for painting. I removed screws at the side fixing it to its neighbour. And I unplugged the light. There are two access holes, top right and top left:

Does anyone know the function of the two screws. and how I remove the cupboard? I couldn’t find matching fixings online.

Thanks.

 

[foxhole]

One screw tightens to wall loosen this and it will lift off , just a few turns should do it,other screws adjust height for aligning cupboard .

 

[WalksWithTurkeys]

Thank you. So I guess I turn each screw in turn and see which one raises the cupboard. When you say lift off, do you mean I have to slide the cupboard upwards until it is free? Or slide upwards a little then pull away from the wall?

 

[foxhole]

Thank you. So I guess I turn each screw in turn and see which one raises the cupboard. When you say lift off, do you mean I have to slide the cupboard upwards until it is free? Or slide upwards a little then pull away from the wall?

Slide up till the hook on the rear clears the bracket on the wall , then move forward , best done with doors removed .

 

[WalksWithTurkeys]

Cheers. Yes, all doors are off.