without actually looking at it I would firstly look at your blade.
**********Disconnect from mains supply**************
Turn your machine upside down. Look at the blade, is it blunt? if so get it removed.Wear gardening gloves to protect your hands from anything sharp. You can either get the blade balanced and resharpened or buy a new one.I had mine done for £6 last year. If you use the plastic type blades on this model and you still get the rattling then I dont know what to suggest. You can always try ebay .....ive just seen one currently bidding for a £5.00. Cheap as chips!
hitsbits, May 2005