About all I do to the sickle is grease the wobble box and give it an "eyeball" in the morning, to check for broken_bent guards and knives. Of course I'm running wheat, which is easier and cleaner to cut. If you're in green stems or weedy stuff, then that can cause buildup and stickiness. In extreme cases, wash the gunk off with plain old water. Once it's straight and free a little dirt shouldn't hurt anything, as the places where the weight rides are pretty well shielded from dirt getting there and staying there. RE: your earlier IJ about deer numbers. Numbers seem to be way down here. Made a hundred mile drive from Glendive to Wolf Point on Sunday evening. It's normally a bad stretch of road where you might see in excess of a hundred deer along the shoulders. I saw about 6 in the whole distance. Ed in Montana