The queing height is adjusted with a tiny (might be .035 - never checked the wrench that closely) hex nut on the side of the plastic platform. The whole cylider can be moved up or down (as well as rotated) once the nut is loosened.
I'm at work, but from what I remember, the access hole comes at an angle.
I'm at work, but from what I remember, the access hole comes at an angle.