Got a call from Jessem. They had a PC 690 router and tried it on their lift. It seems that the 690 does contact the bearing tubes. So I had these choices according to Jessem.
1. Grind off the edge of the router housing at the brushes.
2. Install the router as far as it will go. It will not go in as far, but you can still get a wrench on the collet.
3. Loosen some of the lift hardware screws, install the router, and mess with it enough to get it to go in.
I chose to grind down the router housing. I used a bench grinder to remove some material, then my bench disk sander to finish it off evenly. I only had to take off a little more than a 1/16" off each side. The router then slide in perfectly.
I now can chose between my PC 690 and my Craftsman 17542 for my table.
I am very impressed with the quality of this lift. It was only $120. Much less than their other lifts, so I have to wonder, just what the heck I am missing. It seems to have all the bells and whistles I am going to need.
While they didn't return my call the next day, they really took their time to work out my concerns, and make sure I was taken care of. They said they have just been hammered with business since Christmas, and apologized for not getting back to me right away. I would recommend Jessem to anyone.