Ford 505 and 515 are different mowers, but they do both exist. 505 = long pitman, 515 = pulley w/short pitman. Sounds like you're looking at a 515. The 505 can't cut much above or below horizontal because the pitman can only push the cutting knife back & forth while it's fairly flat. The 515 drives the knife from a pulley that's in line with the main pivot point on the bar; meaning that it can push the knife back and forth at any angle you can set the bar to, even straight up. The tractor's hydraulic lift pulls on linkage that helps raise the bar up a few feet to clear obstacles during operation. When you're done working, you can push the bar all the way up and hold it in place with a special hooked rod. Unfortunately, most of the mowers I've seen don't have all the parts anymore, they're out of adjustment, broken/poorly repaired, etc., so they seldom work the way they were intended to. They're usually stored outside too, so they rust up, exaserbating all other problems. Find out when this one was last used. Beware of "...its was runnin' good when last used...", that could have been during the Eisenhower administration.
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