Hey Hoosier, I am assuming that your saw does not have a "Quick Release" feature (and even if it did, you'd still need to adjust the tracking) With the SAW UNPLUGGED (please do this) look at the blade tensioning sliding bracket. You will notice a wingnut and thumbscrew assmbly - tilt lock -near the bottom, left side of the tension gauge (the vertical slot where you can see the spring and the tensioning nut) I am aslo assuming that your tires are in good shape and that the saw does not suffer from worn out bearings or out of planer wheels.
Loosen the wing nut and reset your blade on the center on the wheels then retighten the blade Make certain that both lower and upper blade guides are backed away and not touching the blade.
(Now I have to mention another thing. Some bandsaw enthusiasts claim that the Delta 14 inch saws should not be used with blades larger than
1/2 inch because you can not get the proper blade tension with the existing spring and even replacement springs may not supply enough tension for blades that large. I use an Iturra spring and I do use a
3/4 inch blade but I wanted to mention this)
Slowly turn the upper wheel with your left hand while moving the ttilt lock in a direction to put your blade on center. If I recall correctly (and I'm not in front of my saw) the blade moves toward the side where the bottom of the wheel is pushed. If the wheel is too far left the blade can come out of the guides too easy. If it is too far to the rigth it will run against the guides continuously. This is a trial and error process but as I stated above the tracking should be doone without the guides making contact. Once the tracking is set you need to adjust the the upper and lower guides properly (don't forget to tighten the wingnut on the tilt lock)
A properly tracked blade will run true on the saw without the guides ever coming into contact with it. The guides keep the blade where it is only when cutting.
Hope this was helpful. Type back if you still have problems. Marc