953 front idler rubbing

I tightened the tracks on my 953 Friday and after doing so it began to squawk terribly from the right front idler. I thought sure I'd lost the idler bearing. After pulling the guards to check the oil in the bearing I found the center "rib" of the idler rubbing against the yoke of the track tensioner cylinder. The rails on the machine aren't that badly worn, so my thought is there has to be a way to adjust the front idler out and "reset" it so to speak. Problem is I'm not that experienced to know what I'm looking for there if someone could point me in the right direction.



Thanks

John