I just hate it when there are parts left over from re-assembling something! I have my new BP back together except for putting the motor back on. I did the disassembly and rebuild myself and I have no idea where this part came from but it was in the box. It is a tapered pin about 3/4" long with a #6 or #8 internal thread on the big end. I can't see it in any diagrams. I replaced the top belt housing, lead screws, ram pinion, "X" nut, speed control crank shaft and table bearing brackets. I didn't have to disassemble any deeper so it shouldn't be an internal part. Any ideas? I'm embarrassed!
I have been guilty of throwing a few extra parts into somebody else's box when they weren't looking but nobody else would be that cruel.