Neuvo 2006 Blind problem

The blind in the kitchen has come out have getting stuck. I need to take the cover off to refit and tension, the trim below kitchen wall cupboards are in the way.  Any advice please, as I can't believe I have to take the cupboards out!  Many thanks

If there is a small gap (as on our Pollensa) then either or both of these might help, as they did with ours:

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Many thanks Roger, I managed with a quarter drive racket with a no 2 posi in the socket, which was very awkward.   
I have had to take is down again after I refitted as roller seems to stick half way up after tightened everything up?  Maybe I am tightening up to much and it is catching on the fitments for the bicycle carrier!

I have refitted this morning and it is fine now.