As some here may have read previously, I recently aquired an old
Unisaw at a school auction. According to Delta, it's a model 1450
which I think means it's the 1HP bullet motor version of the Unisaw.
It has the old style case with the rounded motor hole (no cover) and
the collar around the base. Year of manufacture is a little more
difficult to come up with as my serial number with a 114 prefix
doesn't match up to the available lists or the info on the OWWM site.
My guess is the manufacture date is somewhere in the mid 50's.
Anyway, today I removed the arbor bracket to take to my local machine
shop to have the bearings replaced (no question that it needs them)
and the run-out checked. It looks to me as though the arbor bracket
has been replaced since it's painted black and all the other guts are
that nice old gray color.
While sticking my head in there, amazed at how much larger everything
is than the parts on the contractors saws I'm used to, I notice a
little bracket hanging loosely from the bottom of the front trunion
bracket. After looking at the parts catalog it could be called the
guide block and may still be used on newer machines. This guide block
bolts to the bottom of the front trunion bracket and the front trunion
runs inside the little finger of the guide block. It looks like it's
supposed to help guide the trunion or berhaps just keep it from moving
too much toward the back of the saw. It has a slotted hole, where
the bolt goes through, so that it can be adjusted more closely toward
the trunion. I do see wear on the guide block but it doesn't seem to
me that it needs to be touching the trunion. My question is, how
should this guide block be installed? Should it be installed
touching the trunion or just a hair away from the trunion? Or maybe I
can just throw it in the box with all the other extra parts that I'm
sure to have left after my "restoration". :-)
Thanks in advance for any help and for answering what is likely to be
the first of many questions regarding this project.