Another stuck hitch

This is a real-time repair job on a John Deere 6170R with a hitch that won't drop, caused by rust and grease buildup after the hitch potentiometer failed. The mechanic walks through full teardown: disconnecting lift cylinders, pulling the rockshaft, priority control block, draft links, hydraulic lines, and hitch position sensor. It's unedited, technical, and slow-paced, best suited to owners diagnosing the same hitch problem, not casual browsers.

Posted by a repair technician documenting an actual field job, so expect hands-on mechanical detail rather than polished presentation.