Half nut lock pin on sb 9 workshop A/B apron.

john kling

I am able to shift into clutch based longitudinal and cross feed modes with the pin removed. I generally am not with the pin in place (I have the half nuts open). I have tried lubrication and polishing the pin and have reversed the pin. The pin does not have (and does not seem to need in the drawings) a spring on it. Any one have any suggestions? I am doing my tinkering with the apron removed from the lathe.  

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