I have a group of roll down blinds protecting a deck and some large windows. The mechanism is covered by a box with plastic ends. Obviously inside this box is all the workings for the blinds but I can't work out how to get in to it when it is positioned tight between uprights and brickwork.
Once inside what is best to use to lubricate all the moving parts as I can barely move my blinds after the latest rainfall. Thanks for any advise.

