I bought this 14 inch Rockwell bandsaw (28-243) off Craigslist yesterday. I got it home and found a few things that seem not to be right. The tire is loose on the bottom wheel, can this be fixed with adhesive. Coplanar; a four foot level will hit the bottom wheel and the bottom of the top wheel and has a 3/32 gap at the top. Should the bottom wheel be shimmed out. The measurements were taken with a blade tensioned. There is a mobile device attached to the base. It has a foot lever that rotates a cam shaft that pushes down some casters. I don't think these are the right casters. It has a 3/4 hp Baldor motor, could that be original? When did The Rockwell name change to Delta. Does the serial number contain a date code?