If you have the owners manual for the unit there should be annual maintenance instructions on where to lube your Hood unit.
We have a relatively new Furlex unit that came with a tube of 'special' grease for lubing the fittings and the manual tells you which parts need it. That said, I would think that something like this would do the job a little better then Vaseline:
http://www.defender.com/product.jsp?path=-1|311|296536|314204&id=851293
If you can't find the manual for your Hood RF unit like I did online for our Selden Furlex system then just lube the obvious moving parts and bearings. It is likely that the instructions for lubing a Hood furler are similar to Harken and other brands if you can find their owners manuals and can't find anything on Hood.
Also, make sure you used the right halyard to raise the jib and check for halyard wrap around the top of the furler as this condition is not good. Break out your binoculars and check the top of the mast carefully.
Good luck.