The used B7610 I purchased a couple of months ago didn't come with an owner's manual so I was wondering, until I can obtain one, can someone please tell me (or provide photos) about where the grease zerks are on this tractor. The only two I've managed to locate are on the stabilizer arm and the height adjustment on the right lift arm. From what I've been told, there should be 3 more but I've had no luck in finding them.