2013 Lifestyle LS34SB bedroom slide adjustment help please.

Hello, does anyone here know anything about the slide used in the bedroom slides on the Lifestyle brand trailer? I am trying to figure out how to adjust the slide box up on the outboard side. As in when the slide is in it is siting a 1/4" low according to decals. There seems to be 4 rollers across the bottom of the slide at the exterior wall but I don't know if that is what I need to adjust. I would post photos but I don't see that option. Any help would be great. Thanks