Looks like bolt #19 on the parts fiche. If you are worried about internal issues I would loosen it off about 1/8" and tap the case inside to outside with a rubber mallet to see if it loosens up. If it does it has to come out. It's a long bolt (140 mm). Don't forget that you have some locating dowels in the cases which means the case has to come straight off. That's why you need to tap it out with a rubber hammer to get it moving.
Last edited by fossil; 02-19-2012 at 08:57 PM.