Hello Misma,
The top of the machine should come of quite easily but I think you may have one of the new style two piece plastic body machines in which case I would not even attempt taking it apart if I were you, you will need to take it to a repair shop in this case, undoing the screws on the back of the machine is no problem but there are snap on catches which you can't see and if you break them you will have problems.
drivewithken@blueyonder.co.uk
Ken
drivewithken@blueyonder.co.uk
December 2007