Reply by vonfalken

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Posted on table saw

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59 posts in 1667 days

#1 posted 08-19-2016 09:29 PM

ok i found the problem this is a copy n paste from another forum…..........Apparently, in the world of machining it is very difficult and expensive to produce a part with a perfectly round hole. Getting back to the Delta, when you turn the wheel to raise and lower the blade, this drives a rod which turns inside a shaft that is situated between the wheel and the gearing mechanism. This shaft is not produced with a perfectly round hole. Instead, it is produced with a hole eccentric in shape. I’m not exactly sure what this means, except that its internal roundness is irregular. When the shaft is installed, it is positioned (clockwise/counterclockwise) in such a way as to find its ‘sweet spot’ where the rod passing through it turns without binding. Apparently, when I used the wheel to raise and lower the blade I was lazy about fully loosening the locking nut and friction rotated the shaft out of the optimum position. When I got the trunnion back from repair, I etched a line on the outside of the shaft that recorded the ‘sweet spot’ position. Now I’ll know how to repair this myself. And, of course, I’m now very careful to fully loosen the locking knob before raising and lowering the blade. For some reason, there is no documentation from Delta that my repairman or I could find that delineates this. But at least in my case, this is what finally fixed my saw…...........yup thats the problem too bad it doesnt say how to fix it lol

-- vonfalken

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