Spindle warm up issues

Doing a spindle break in and the noise coming from the spindle doesn’t sound correct. Popping and cracking noise. I stopped it at 3000 rpm. Any guesses?

I would pull the covers off and make sure there’s no debris in there with the belt.

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Maybe take off the drive belt and spin the spindle with your hand. That will tell you if you have a bearing issue. Just a note, I warm up my spindle for 5 to 10 minutes before trying to cut anything. By the way welcome to the club.

check belt tension number of peoples have been loose

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