One of the tires exploded on my bandsaw a couple weeks ago. I bought some new tires and installed them. Now the blade keeps falling off. I can't seem to get the adjustments right. What do I do? I have a really old Jet 14" saw. It looks like it came out of your shop class in the 60s. Currently the blade stays on when I turn the wheels by hand but it runs off the wheel when I turn the power on. I'm not sure I have the tension correct. It's hard to tell because the gauge on the bandsaw really doesn't have any markings that are helpful. You can barely read what's there.