Thinking about it, the Cup has a single washer motor, that does not require removal of the wiper motor assembly to replace.It all works fine tho but,I will do this over the Easter break if not pissing it down!
How would you go about checking them then mate?.
it all works fine and I never hear it scrapping on the middle bit.
DO NOT GREASE THE MECHANISM.
Dust and crap stick to it and it gets everywhere and ends up drying out and causing problems. Give everything a good clean with brake cleaner eye then use ptfe spray, gt85 etc...