Very simple repair procedure.....this "end shake on yoke", as the factory refers to it, is easily repaired by lightly peening the end of the yoke button to restore contact between the inside of the button and the screw pilot stem. In the OP photograph, the point where the rub line on the inside of the button terminates indicates the location of the contact of the yoke screw stem and the button when the yoke is closed. Peening should be done on the outside/end of the button at this location.
The purpose of the peening to to remove the gauge (space) between the inside contact surface of the yoke button and the yoke screw, and eliminate the front and back movement, or "end shake" of the yoke.
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Ret. LE, FA Instr, S&W Armorer
Last edited by armorer951; 07-01-2018 at 12:31 PM.
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