04 Accord Sedan, v6

I have some annoying rattling coming from the center of belt pulley on the steering pump. I was wondering what would happen if I unscrew that bolt in the center to grease the ball bearing? Does anyone know what that screw holds? Will I cause damage by unscrewing it? Will I be able to put it back on?

Please see picture

 

The bearing is usually a sealed bearing, so you would have to remove the end cap to grease the bearing.

To remove the pulley, you have to remove the belt. Then undo that bolt.

There should be a key holding that pulley in place.

 

It looks like that's a sealed bearing, but it can be replaced...

 

thanks!