"Harold and Susan Vordos"
wrote in message ...
What Tom said. The typical horizontal band saw has no crown, nor rubber
tire. They typically have a shoulder, against which the back of the blade
runs. If the wheels are properly aligned with one another, the blade
will
stay in place. A tired, old blade often will come off time and again.
You can usually attribute the problem to minor dissimilar stretch of the
blade. Try a new blade before anything else.

Harold

Harold, SHUT UP they don't want to hear it! Except for poor Chris.