Your number one priority is to make sure those knife inserts are all tightened down properly. For that you will need something to measure how hard you are torquing the screws, i.e. a torque wrench or the equivalent. There are some screwdriver-type devices, but I prefer a beam- or band-type torque wrench, in the 100 in-lb range. The one I use is a Tohnichi 120SF-A, but you can get away with a much cheaper beam-type unit in that range (NOT one of the larger torque wrenches, it's important that the ~50in-lb of the screws be in the middle of the range of your instrument, or you can really mess things up.) It's hard to screw up a beam-type torque wrench if you're in the correct range, although some dare to try.
Marc Spagnuolo (theWoodWhisperer) did a really good YouTube video on setting up the 882 tables:
https://www.youtube.com/watch?v=gO746cuRqV4
I can't describe it better than he did.
BTW, the manual that comes with the machine is very good, and goes into great detail.