You will probably also have to take off the brake. I'd pull the front wheel, brake - then loosen the trees & slip the forks out. Change the gaitors, then put push the forks back in the trees, put on the wheel & brake - then you're done. For the brake, dont let it hang by the hose. Get an old coat hanger & hang it from the brake body & the frame. Also you'll want to lube the fork before re-insertion. Take that part slow because you dont want to scratch up the fork. All in all, it should take about an hour or less.