Newbie grounding questions

Like the tile says, I'm a bit new to turntables and I have a basic question:

If you're coming out of the line out (vs. phono) do you need to ground your turntable? My receiver doesn't have a grounding post on the back. If I do need to ground, what's a good way to go about this? I'm a little bit embarrassed to be asking this since I'm a live sound engineer. I know why you would need to ground (60Hz ground loop elimination - or maybe I'm wrong on this?), I just don't have any experience with turntables.

I have an AT LPW40 in the mail and am trying to get everything I need together before it gets here.

Any other bits of wisdom you'd like to share would be appreciated. Excited to go on this new audio journey.

Thanks!