I am having an issue breaking the carter keys on my bushhog.not sure why but apparently too much pressure being put on them by the 3pt and they keep breaking.. I know im rough on the hog been cutting saplings with it lately, maybe just when turn tight in the brush too much stress on the pins..dunno. its the keys that go through the pins at implement to be more clear. Also have bent two now on the top link...im thinking adjustment issue somewhere i dunno..any ideas?