Window Blind - lubricant?

They are prone to gathering fluff in the rotating parts and OH has never used lubricant also made need adjusting  we have small parts on ours which snap, a friend of ours used youtube to see how to sort them out, hope this helps and welcome to the club where you will find a lot of useful tips.

Gerry.  Are you talking about the roller blinds?  Not sure you are able to lubricate the mechanism although you could ensure that the channels are clear . If you are talking about roller blinds, it sounds as though the springs are tensioned too tightly: it is possible to de tension the springs (if you see what I mean) and re tension them to a more satisfactory tension.  Most have the opposite problem and need to tension them occasionally.

To de tension, on one side of the blind you will see a place where you can insert a screw driver; insert a screw driver and push in, you can then turn it to either tension or de tension the springs.  Care needed as the spring may rapidly de tension!  DO NOT OVER TENSION THE SPRINGS. You do not need too much tension just enough to offer some resistance as you lower the blinds.  This is for blinds which are fitted above the window; I have no experience of blinds you raise.  Hope this helps.  If you caravan has had a habitation service this 'should' have been checked!