Troubled Triton Update.
Thank you for your responses.
1) I removed the router and placing it plate up, held it in place and cranked it all the way up & all the way down several times paying attention to "smoothness" (or lack thereof) while lowering, and it wasn't very smooth during most of its travel, and it clearly "resisted" my turning the crank in a certain area.
2) With compressed air, I blew away all debris, especially in and around cranks, posts and vents. Again, I cranked it all the way up & all the way down several times without observable change.
3) I removed the spring housing cap and blew the void out thoroughly. A little dust came flying out at first, and another small burst shortly after, but that was it. I continued blowing it out till I was confident no benefit remained. I again cranked it all the way up & all the way down several times, but this time with a definate change for the better - a small one, but better. While I was inspecting and trying to figure out what else to do, I was tempted to squirt some WD-40 into the gears at the base of the void into which I was staring, but decided against it. I put the cap back on and dropped it back in the table and screwed the plate back in.
Back in place, I cranked it all the way up & all the way down again several times thinking magic would happen, but ... Can I live with it? Well, I'm going to have to, unless 1) I win the lottery (and there's no chance of that since I don't buy tickets), or 2) one of you guys tell me what else I can do! Meanwhile, I have other stuff to do in the shop. You?
Thx guys, and happy woodworking.