Bobcat quick-attach assembly (1st gen, single lever design) Bobcat 440b

Repairing the Bobcat skid steer "Bob-tach" quick attach implement coupling assembly. This single-lever style of quick coupler was used on models like the 310, 371, 440, and 453. From the 463 onward they used the new double-lever design. This particular unit is a 440b from 1993.
In this repair the old pivot bushings were cut off, and new ones were fabricated and welded on, using a brass mandrel for alignment. The internal parts were removed, repaired, and reinstalled. The mechanism works adequately now.