Hello Jennifer,
The topsshaft under the balance wheel is dry, take the top off the machine and you should see a small oil hole just left of the nalance wheel, if not spray some WD40 inside the balance wheel from the top of the machine, if thatb does not work you may need to take the balance wheel off, if you need to do that email me below and I will give you instructions.
Ken
drivewithken@blueyonder.co.uk
January 2009