Be sure the nut on the bolt is self-locking. Because of the air gap, you cannot tighten enough to keep a nut from spinning off, even if you use a steel lock washer. Different ways to ensure the nut stays on: (1) Use 2 nuts back-to-back and tighten them against each other (may require a slightly longer bolt), (2) Use a self-locking nut - has a nylon insert or manufactured deformation, (3) locktite-type product - 'blue' may not be strong enough, 'red' will be strong enough but requires heat if you need to disassemble.does anyone know the size of the missing bolt and the arm bolts
FWIW - I think I have owned three of those 3-point shredders that you show. I found it frustrating that all were built with those metal straps, for if the tail wheel was forced up, say going through a ditch, the straps are unforgiving and are forced to bend. Because I am good at customizing when there is a need, on all of my mowers I cut out a 18"-24" piece in the center of each strap and welded a chain in it's place. Had to be very careful to ensure both sides were the same length. By making the change, the tail wheel easily floats with ground changes, the tail of the mower can be tilted as much as 45 degrees up without a problem, and the chain tension allows the deck to be lifted when I raise the 3-point.After finishing cutting ~6 acres I noticed the right lift arm brace was severely bent and I have no idea how it happened.