I have a question concerning the motor shaft, or possibly a motor bearing, on a Jet 1642 EVS-2. I bought the lathe this spring and I really have not spent a great deal of time with it. Yesterday I turned a 3" limb that was somewhat unbalanced, but not so out of balance that I thought it was unsafe or a potential problem for the lathe. While I was working, the lathe started making a clicking noise in the motor and I shut it down.
Long story short, the motor clicks from 0-1,800 RPM and has some vibration. The noise and the vibration smooth out over 1,800 RPM. The problem is not with the cooling fan on the end of the motor. I removed the drive belt completely to eliminate the spindle and/or spindle lock from the possible causes. The motor shaft has no play whatsoever to indicate a problem with the bearings, but there is some visible run-out on the pulley.
Now Jet is replacing the motor under warranty, but I would like to know if anything I did could have possibly contributed to causing this? I don't want this to happen again, but I cannot imagine what I was working on caused this on a lathe that on the high end for a hobbyist. Any thoughts?