I would concur with Ed and Karl, my SBW3501B works just fine.
All bandsaws need to be accurately set up, unfortunately many people do not take the time to learn to do so or worse, knowing how to, don't.
So called technicians in education establishments are among them.
Inform us of the nature of your problems with the machine, then a solution may well be forthcoming. Tools do what they are meant to do unless abused or not maintained, :evil: two things people who love working with wood will never put up with. :wink:
Regards Rob.