Hi Pam. You will have to really oil it probably. More than once. I have that trouble all the time. It takes my Son or my Husband with a big handled TINY screw driver to finally get it loose. Leave the little screw out until you get it to unwind a smidge. If you can put it on its end so the oil will go around in the screw hole. Sometimes I give it a little "judo Lesson", with a rubber hammer. But be careful! Maybe a hair dryer would help.