That looks like a great link.Does this help.
How to re-tension caravan roller blinds and flyscreens - Practical Caravan
Practical Caravan's DIY caravan mechanic explains how to adjust your caravan's Seitz roller blinds and flyscreens so that they're as good as newwww.practicalcaravan.com
What about the blinds.I sprayed mine with silicon lubricant and it worked a treat.
What about the blinds.
Oops, I’ve just used the spray for something else and it isn’t silicon, it is Rocol dry ptfeI sprayed mine with silicon lubricant and it worked a treat.