What the....???

I think what they mean by “machines with built in chip impellers” is tools like my planer.
My planer has an impeller that sucks the chips off the workpiece and then throws the chips out the back of the machine through a tube.

I don’t see a problem, however, unless your collector fan is too weak to generate adequate static pressure beyond the separator. But, that is a collector problem, not a separator problem.

-- Michael :-{| Diapers and politicians both need to be changed often; and for the same reason.

The built in chip impellers probably are reference to one machine—the Dewalt 735 planer. I’m not familiar with your TS, but all table saws are somewhat problematic when it comes to dust collection. That’s because there are so many places for air to enter. Contractor saws are worst in that regard. There have been posts showing how to build a box completely around the motor extending out the backside of a contractor saw, and of course you have to seal them underneath, too. Even my Unisaw is not great, though I know I can improve it by building a shroud around the motor opening, and plugging up as many holes as possible. I’ll get around to it someday.

Yup….confirmation from LV customer support, they are talking about machines with built in impellers, like the DW735….negates the cyclone action of the lid.

-- -- Don in Ottawa, http://www.donebydon.ca