The arbor bracket rides directly on the worm gear, which is on the same
shaft as the crank for raising and lowering the blade. It might be easiest
to take the table off to check it out. As you crank the blade up and down,
the arbor bracket pivots, and when it gets to the end of it's travel, there
is a stop at each end that bumps up against the worm gear. The worm gear is
held onto the shaft by a pin, and toe shaft is held in position by a stop
collar on the rear end of the shaft. If the worm gear and the arbor bracket
are misaligned, it will cause the symptoms you are experiencing. My guess
would be that either the worm gear was removed at some point and reinstalled
backward, or that the shaft has moved toward the rear thus misaligning the
worm gear and arbor bracket.

Doug

"dave" wrote in message
...
just got this thing, used. got it about a year ago, actually, but just now
getting around to setting it up to USE it. put on a brand new 10 inch
blade, but, when I crank the elevation knob ALL the way down, the blade
will NOT go down below surface of the table-it actually 'sticks up' about
3/16ths higher -above- the upper table surface when *fully* lowered.

also, and amazingly, the arbor pulley "binds" on the bottom of the table
when the blade is raised (cranked up) to it's "full up" position.