Sieg X3 spindle noise

[brento]

I have been running my mill for just a few months now and suddenly a new noise appeared. A whirring noise is coming from the spindle and I don't know why. I was running it at 2800 rpm. It wasn't there yesterday, but as soon as I started up the machine today the noise started and, not knowing what caused it, I immediately turned off the machine. Any ideas are most welcome on how to fix this.

[mikemill]

I had a same problem recently, take of top belt cover and adjust the belt tension, my X3 runs quiter than ever know
Good luck
Mike

[neilw20]

Belt alignment for me. I run 3600 - 2000 hours now. Puff of graphite on belt can help

[brento]

Ok thanks, I will try this

[cacofonix]

hello brento

i also have this kind of noise
it came from top fan , a small smack on it
and noise stop
hope it helps

herve