I use a small brass wedge with a piece of fishing line attached to it. Compress the spring, insert wedge, depress the post in the rib extension area with a screwdriver, which allows the top lever to return to center. Then assemble, pull the lever to the right, and pull out the wedge with the fishing line. Pretty simple. I got this idea from Fishnfowler (he gave me a couple wedges that he uses on his Smiths), and it works really great.

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