When they are this tight i use a large pair of Stilsons, this will remove it easily, as the plastic head of the bolt is part of the double insulation it should be replaced if damaged
Husqvarna man, July 2010
It is a large black plastic six sided nut and I have tried the special spanner that came with the mower and also a mole wrench but it is totally seized on and wd40 has had no effect. The mower is electric. Thanks for your reply
ericmac, July 2010
I dont remember a nut holding the blade on, it was always a bolt, is there petrol or electric?
