1999 Nissan Altima

Hello, when turning the ac on a squeling noise and burning smell came from the right front part of the engine compartment. Used off and on, then the lower belt snapped. I replaced the belt but loud squeling noise and burning rubber comes when turning the engine over with or without ac engaged. Question, could this be the ac clutch? And if I take the belt off, is it drivable? That belt services the ac wraps around a tensioner and also services the power steering? Without belt I will not have power steering or ac? As long as waterpump and alternator are run via larger serpentine belt than ok?
Thanks for your help, Paul
June 20, 2007.

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