+1...I keep trying to tell everyone that. The drill press should only be turned by hand while dial indicating the tapered hole. The press is only to provide a true center on the threaded stud, and should never be spun under power at any speed. There is just no reason to spin them under power. A quick recap of the check:
1) Unplug the drill press, or use restraint not to turn it on during the entire procedure!?! LOL
2) chuck up the vertical link with the threaded stud in the drill chuck.
3) Bring up the drill table to about 4 inches below the bottom of the vertical link.
4) Mount your dial indicator to read the inside of the tapered hole at the lower end of the vertical link, the way it is mounted.
5) If you don't have a dial indicator, just hold a pencil point steadily at the tapered hole to give a reference.
6) SLOWLY turn the vertical link by hand while indicating the tapered hole. .050" or less is awesome.
If the tapered hole wobbles more than .050", mark the high side, remove the vertical link, and gently straighten in a press.
7) repeat until the tapered hole is within .050" runout, or wobble.
Here is the procedure with pictures:
I just had the pleasure of disassembling, cleaning and inspecting 8 Triumph spindles, ranging from TR2-4. I have mentioned before how these are not the strongest of spindles...and my inspections proved it. In order to turn freely, the lower "bolt" that threads into the trunnion must be...
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