I need to fix in a new hinged lid where the liquidiser sits onto my ovatio 3 duo, because the little catch has broken and it won't fix down (it needs to fix down to allow the food processor to work). Do I need to take the whole machine to bits to get the lid. I will need the part MS5966917, but it's proving impossible to separate from the hood, part MS5966918

Marie Needham, August 2012