1. Jan 28, 2015 #41
   

   Xanda73

   You need a socket (14mm I think) or a spanner to get the nut off but then the arm still might not budge as the shaft it's fitted to is knurled and tapered. That's when you might need a puller.
   
   http://www.amazon.co.uk/dp/B007Z9DG0A/?tag=rsmeg-21
   
   That sort of thing linked above.
   
   Try it without - you might be lucky but be careful like I say, not to try to lever against the window.

    
3. Jan 29, 2015 #42
   

   Cal

   Ok, will give it a go when I have some light.
   
   Thanks for your advice!

    

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