03-20-2022, 02:35 PM
Get a cheap oil squirt can from Harbor Freight, and put some Marvel Mystery Oil in it. With the control facing upward, squirt a drop on several spots around the circumference, and wipe off excess. Then gently keep trying to rock the control back and forth. It should break loose. If not, the next step is a little squirt of PB Blaster, followed by the same routine.