So what was the rattling sound, my guess is the blade carrier was loose on the crank bolt, the tabs are only to help prevent the blade carrier from spinning, The center bolt needs to be tight and should hold, the tabs are there to help.
Hmmm good question.. I just assumed as the tab was broken off, it was the rattle .. though as you mentioned the centre bolt, I do recall it being tight .. Ill have to have another inspection tomorrow.
