|Forum topic by skozub||posted 02-19-2008 02:09 AM||6163 views||0 times favorited||15 replies|
02-19-2008 02:09 AM
I made a few zero clearance throat insert plates for my table saw this afternoon but when I went to use one I found that I couldn’t lower my blade far enough into the cabinet base to insert the new throat plate. Proper order should be: lower the blade all the way into the cabinet, drop in the new throat plate, place the fence over a small portion of the throat plate (or use some other method to hold down the plate) then turn on the saw and raise the blade up through the new insert. Now you have a zero clearance insert.
My problem is that I can’t get the blade far enough below the top so the throat plate will sit flush (the blade is so high it holds the plate up. What gives?
I have a Delta Unisaw (36-L31X). I pulled out the manual and even called Delta to see if there was some stop, I was not aware of that I could easily adjust. Neither was very helpful.
Here’s what I’ve found: The teeth on the arbor assembly ride along the worm drive component on the raising shaft. At each end of the teeth are two larger ‘teeth’ that act like stops and prevent the blade from being lowered or raised any further. The ‘blade low point’ stop tooth is engaging on the worm drive component too soon. I need to get my blade to go lower into the base so it seems I need the worm drive component to be further forward on the raising shaft (i.e. closer to the raising/lowering wheel on the font of the saw).
I can loosen the 3/4” hex nut on the outfeed side of the rising shaft and move the shaft further forward but I don’t have a lot of additional space beyond the hex nut so I’m a little hesitant to weaken that connection by giving it less real estate.
Is there any thing else I can do to try and get the worm drive on the rising shaft further forward? It looks like there is some pin on the worm drive component but I fiddled with it for a bit and couldn’t get any results.
Anything I need to be concerned with by trying this adjustment myself vs. hauling it to the Delta folks to fix.