Thread: Lyman D7 scale
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Old January 18, 2005, 02:52 PM   #4
Jim Watson
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Join Date: October 25, 2001
Location: Alabama
Posts: 10,917
It is a beam lift. Turn the knob to "UP" and a bar lifts the beam off the knife edges (pivots.) It is to keep the knife edges from wearing with every little draft in the air while the scale is not in use.
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