My 10" Delta contractor's saw recently got out of alignment with the miter slots. (I most often use the left-hand miter slot, so that's the one I'm adjusting the blade to.) The problem is that the rear of the blade heels to the left, so wood gets slightly re-cut when pushed past the end of the blade. I loosened what I believe are the trunnion screws - four screws underneath the saw table, two in front and two in back, that hold the whole blade assembly to the saw table - and have been hammering the rear corner of the trunnion to try and get it to shift to the right to correct the leftward heel of the blade. It won't budge. I tried hammering the front end of the trunnion, thinking that a left shift of the operator end of the blade would accomplish the same thing as a right shift of the rear end of the blade. Unfortunately, there is scant room underneath the operator end of the saw table, i.e. the front of the trunnion, to make a hammer swing. I can't use my table saw until I solve this problem. Does anyone have suggestions? When starting this project I had assumed that the trunnions had some room to move left or right by virtue of a widened screw slot. I am beginning to doubt that, however, due to the fact that I can't get it to budge.
(Solid Wood Machining Forum)
From contributor L:
Unbolt the table top and move that.
Comment from contributor E:
I had the same problem exactly: little adjustability on my contractors saw, out of parallel miter slot to blade relationship, and trunion to table screw holes that were not oversized at all to allow a small whack to move the trunion assembly. I took it off and drilled out a slightly larger sized hole at the drill press (making sure of course that the bolt would still be fully engaged against the casting below its head). I don't know if this adversely affected the saw in any way from a legal stand point, but it fixed my problem. I was able to adjust the blade parallel with the slot and have had no problem with the saw.