A couple of different manufacturers like Frabill make a lube just for this. I know that with the Frabill insulated tipups, you hold onto the spool in one hand and firmly pull on the black spinner on top and the spinner comes off. This allows you to pull out the shaft and add fair amount of lube. Frabill might even have better instructions on their website. It's probably a good idea to do this to all you tipups at the end of each season. This way, if there was any water trapped in the shaft, you won't have it sitting and rusting all summer long. This lube also works well in your reels as it doesn't gunk up like other standard lubes. Good luck.