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DW7491 table saw not maintaining blade height

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Dewalt 7491 Table saw blade height not staying where set when in operation. I’m trying to cut a dado and when the saw is in operation, the blade creeps down and I cannot cut an accurate dado. I can watch the hamdwheel turn on its own due to vibration. 
Is there an adjustment to ‘tighten’ the screw to prevent this from happening?

Thanks in advance

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Great question.  We were just talking about that with another saw.  There has to be something and we were going to check next week with the saw we are working with.  I don't have the Dewalt in front of me, but wondering if there is a cap on the middle of the handwheel that can be taken off and tighten.  Not sure if that will just tighten the handwheel or fix the problem.

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  • 4 weeks later...

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