Do not try pushing it out, wiggle it as your pulling, I've never had one that wouldn't come out and never had to but you might want to put a latex glove on so your fingers don't slip. One question , is this a new pen or is it one that has been used and the ink dried, if so run the nib and feed under tepid water to loosen the dried ink.I have removed at least 100 nibs in the last year or so and never had one not come out. Every fountain pen I sell at a show I take apart to show the customer how to clean the feed.