Hi, I'm Mark Bauer with Bauer Small Engine Repair. I'm going to show you how to mount a lawn mower tire. This particular bottle is held in there by a single bolt or a single; it has a knot and the, the bolt is actually it's fixed. So it stays on there. They go counterclockwise to loosen. "Leap the loosy ridy tidy." So break that loose; it's a lock knot so it's going to come off; it's going to feel like the threads are messed up all the way out until it gets pass the locking mechanism on the knot. Then you can take your socket and speed things up by taking that off. This knot has a flange on it; so it doesn't use a washer. Its flange acts as a washer. These are sometimes harder to come by than the actual wheel. If I can't get the knot or if I don't have a knot, just use a drop of Blue Loctite on there. In a pinch you could get by with some fingernail polish, put a little bit on there that will help lock it on there. When you remove the wheel you want to inspect this shaft to make sure that it's not worn, have deep groves or anything on it. What can happen is this can wear and even with the new wheel, it can, it can be lose and it can make the wheel fail pretty maturely. It can wear out this hole unevenly. So you want to look at that. This one has a little wear. Anything you see shiny is wear; but run it with my fingers down on it, it feels pretty smooth and there's in a big step right here and that's what; you'll get a big step here or big step way in the back or it doesn't touch. And if that's the case, it shows you that it's worn. You also want to make sure the threads are in good shape. You just take a little bit of synthetic grease; put it on there and the reason why I use synthetic is it won't affect the plastic on the wheel where petroleum base grease sometimes will cause a problem with the plastic on the wheel; can actually make it bind up. So little bit of synthetic grease on there; put that wheel on there and take your knot. You can take your socket and start it, screw it down right until you feel a little resistance. If you feel a good resistance too that tells you that knot is still functioning somewhat and still has some locking capability to it but it's just not going to be as good as a new knot would. And you tighten that down and it has a shoulder on there so you can't over tighten it. So you; if you tighten the knot down too far, it's not going to bind the wheel up 'cause there's a shoulder on there and it stops in that shoulder. So that one's nice and tight. Once you have the wheel tighten, it's really all you need to do. Just take your block out from there, underneath here and set it aside and that's how you change a tire on a lawn mower.