Thanks speedy and Tyler,
I figured it was like the Ryobi one, I doubt I will ever need to do one as I bought 100 primer caps from the carbymaster when I was having terrible problems with float needles and primer caps a couple of years ago. I still have quite a few still here. I don't throw all the ones I remove out, only the ones with split/damaged primers or other damage, or some that the needle keeps sticking in or leaking.