Hi - I bought a TRA001 for mounting in a table about 5 months ago. I made it a table (pictured) which is simply a piece of 18mm ply with some bracing, and set some T-Track and the
Kreg router plate into it (which is pre-drilled for the triton, and has the right cutout hole for the above table adjustment. I also made a fence for it with some dust extraction consideration and a micro-adjust feature which if you are thinking of making a fence yourself I would highly reccomend.
I have very little space in my workshop, and mostly use a 1/4" dewalt router I have in a compact table, so I won't use the larger TRA001 often. I wanted to make just the table top so that it can be stored flat. I then just put it on saw horses for use. Like
@Spectric mentioned above, it is best to use the bigger dial for the main adjustments then make the final adjustment using the above table winder, so having it in this 'table only' setup means I have easy access to the relavent knobs, and the lock off knob you have in question.
R.E dust extraction, which I believe is the real reason for your question, I think people find that the clear plastic extraction cover underneath does not sufficiently close in the bit to get good suction + extraction. I came across this part (
Triton dust collector insert by Jahislove - Goodness knows why they opted for a pale excrement colour in the 3D print prototype...) which someone had 3D designed to address exactly this problem, which clips into place very easily and closes the area in under the bit much better, resulting in a huge improvement in extraction. I also had one of
these printed to adapt the screw-in extraction port on the existing clear plastic base for my hose, of course it could be changed for any convenient diameter. If you know someone with a printer these are simple parts to print, or you might find someone on here who would do it for you, or I found someone who did both parts for about £20 which I can put you in touch with if needed.
Those extra parts made a gigantic difference, I don't suffer at all now with dust from the underside of the router. I think they would solve your problem.