I have a '05 nissan sentra 1.8 s and am trying to change the 2 belts 1 is the serpentine belt?? PLZ HELP!?

my boyfriend hs already got off the long belt that is in the front..but in 2nd belt wont loosen..he loosend the adjusment bolt by the power steering thing but the belt still wont budge at all..is there a 2nd adjustment bolt somewhere that we are missing? please help we have been working on it for almost 2 hours.