Yes there is. The pivot on the beam is basically a triangle with the angle that sits on the base needing to be a knife edge. I use a magnifier and an DMT Red Diamond Hone. Carefully dust both sides of the pivot on each side of the beam until you have a sharp surface. You must get the hone at the same plane of the pivot. any flat or dull spot may have an impact on consistency.
Also, clean the base were the beam pivot sits. I add some mineral oil and that works for me. Your mileage may vary.
Always remove the beam from the base after using and protect those edges. There are wicked vibrations coming from underfoot that may accelerate the wear on the pivot.
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